PMID-sentid Pub_year Sent_text compound_name comp_offset prot_official_name organism prot_offset 16838953-2 2005 The calculated dissociation energies of the HOF-SO(3), HOCl-SO(3), and HOBr-SO(3) complexes are 5.43, 6.02, and 5.98 kcal mol(-1) at MP2/6-311++G(3df,3pd) level, respectively. hypobromous acid 71-75 tryptase pseudogene 1 Homo sapiens 133-136 16300375-0 2005 The role of aromatic amino acid oxidation, protein unfolding, and aggregation in the hypobromous acid-induced inactivation of trypsin inhibitor and lysozyme. hypobromous acid 85-101 kunitz trypsin protease inhibitor Glycine max 126-143 11425491-5 2001 Compared to HOCl, HOBr caused 2-3-fold greater oxidation of tryptophan and cysteine residues of the protein moiety (apoB) of LDL and 4-fold greater formation of fatty acid halohydrins from the lipids in LDL. hypobromous acid 18-22 apolipoprotein B Homo sapiens 116-120 15260531-1 2004 The potential energy surface (PES) for the HOBr.H(2)O complex has been investigated using second- and fourth-order Moller-Plesset perturbation theory (MP2, MP4) and coupled cluster theory with single and doubles excitations (CCSD), and a perturbative approximation of triple excitations (CCSD-T), correlated ab initio levels of theory employing basis sets of triple zeta quality with polarization and diffuse functions up to the 6-311++G(3dp,3df ) standard Pople"s basis set. hypobromous acid 43-47 tryptase pseudogene 1 Homo sapiens 151-154 15260531-5 2004 The CCSD-T/6-311++G(3df,3pd)//MP2/6-311G(d,p) barrier for the syn<-->anti interconversion is 0.3 kcal mol(-1), indicating that a mixture of the syn and anti forms of the HOBr.H(2)O complex is likely to exist. hypobromous acid 176-180 tryptase pseudogene 1 Homo sapiens 30-33 15260531-5 2004 The CCSD-T/6-311++G(3df,3pd)//MP2/6-311G(d,p) barrier for the syn<-->anti interconversion is 0.3 kcal mol(-1), indicating that a mixture of the syn and anti forms of the HOBr.H(2)O complex is likely to exist. hypobromous acid 176-180 synemin Homo sapiens 62-65 15260531-5 2004 The CCSD-T/6-311++G(3df,3pd)//MP2/6-311G(d,p) barrier for the syn<-->anti interconversion is 0.3 kcal mol(-1), indicating that a mixture of the syn and anti forms of the HOBr.H(2)O complex is likely to exist. hypobromous acid 176-180 synemin Homo sapiens 150-153 12208372-11 2002 We conclude that eosinophil peroxidase produces substantial amounts of hypobromous acid in the airways of stable asthmatics. hypobromous acid 71-87 eosinophil peroxidase Homo sapiens 17-38 11697850-1 2001 Activated leukocytes generate the potent oxidants HOCl and HOBr via the formation of H(2)O(2) and the release of peroxidase enzymes (myeloperoxidase, eosinophil peroxidase). hypobromous acid 59-63 myeloperoxidase Homo sapiens 133-148 11697850-1 2001 Activated leukocytes generate the potent oxidants HOCl and HOBr via the formation of H(2)O(2) and the release of peroxidase enzymes (myeloperoxidase, eosinophil peroxidase). hypobromous acid 59-63 eosinophil peroxidase Homo sapiens 150-171 15364942-3 2004 Leukocyte-derived peroxidases, such as myeloperoxidase and eosinophil peroxidase, use hydrogen peroxide and halides (Cl- and Br-) to generate hypohalous acids (HOCl and HOBr), halogenating intermediates. hypobromous acid 169-173 myeloperoxidase Mus musculus 39-54 15364942-3 2004 Leukocyte-derived peroxidases, such as myeloperoxidase and eosinophil peroxidase, use hydrogen peroxide and halides (Cl- and Br-) to generate hypohalous acids (HOCl and HOBr), halogenating intermediates. hypobromous acid 169-173 eosinophil peroxidase Mus musculus 59-80 12208372-0 2002 Eosinophil peroxidase produces hypobromous acid in the airways of stable asthmatics. hypobromous acid 31-47 eosinophil peroxidase Homo sapiens 0-21 12208372-1 2002 Eosinophil peroxidase and myeloperoxidase use hydrogen peroxide to produce hypobromous acid and hypochlorous acid. hypobromous acid 75-91 eosinophil peroxidase Homo sapiens 0-21 12208372-1 2002 Eosinophil peroxidase and myeloperoxidase use hydrogen peroxide to produce hypobromous acid and hypochlorous acid. hypobromous acid 75-91 myeloperoxidase Homo sapiens 26-41 12071050-4 2002 Myeloperoxidase easily oxidizes thiocyanate to hypothiocyanate and Br- to HOBr, which are involved in protective reactions. hypobromous acid 74-78 myeloperoxidase Homo sapiens 0-15 11485572-11 2001 We conclude that at plasma concentrations of bromide (20-120 microM) and thiocyanate (20-100 microM), hypobromous acid and oxidation products of thiocyanate are produced by eosinophil peroxidase. hypobromous acid 102-118 eosinophil peroxidase Homo sapiens 173-194 11425491-8 2001 Similar apoB modifications were observed with HOBr generated by MPO/H(2)O(2)/Br(-). hypobromous acid 46-50 apolipoprotein B Homo sapiens 8-12 11425491-8 2001 Similar apoB modifications were observed with HOBr generated by MPO/H(2)O(2)/Br(-). hypobromous acid 46-50 myeloperoxidase Homo sapiens 64-67 11096071-5 2001 In contrast, eosinophil peroxidase preferentially converts Br(-) to HOBr. hypobromous acid 68-72 eosinophil peroxidase Homo sapiens 13-34 11432558-10 2001 pH depression shifts the HOBr/ OBr- equilibrium to HOBr and also affects the ozone chemistry. hypobromous acid 51-55 leptin receptor Homo sapiens 26-29 10090740-13 1999 They also suggest that in biological mixtures where amine groups are abundant, the trapping of EPO-generated HOBr/OBr- as N-bromoamines will serve to effectively "funnel" reactive brominating equivalents to stable ring-brominated forms of tyrosine. hypobromous acid 109-113 eosinophil peroxidase Homo sapiens 95-98 11329272-7 2001 Eosinophil peroxidase required H(2)O(2) and Br(-) to produce 5-bromouracil, implicating HOBr as an intermediate in the reaction. hypobromous acid 88-92 eosinophil peroxidase Homo sapiens 0-21 11329272-11 2001 Collectively, these results indicate that HOBr generated by eosinophil peroxidase oxidizes uracil to 5-bromouracil. hypobromous acid 42-46 eosinophil peroxidase Homo sapiens 60-81 11172002-2 2001 Eosinophil peroxidase, a heme enzyme released by eosinophils, generates hypobromous acid that damages tissue in inflammatory conditions. hypobromous acid 72-88 eosinophil peroxidase Homo sapiens 0-21 10866624-6 2000 Additions of HOBr, HOCl, and DMTSF to highly functionalized substrates proceed predictably with syn selectivity, giving predominantly or exclusively one product. hypobromous acid 13-17 synemin Homo sapiens 96-99 11329272-1 2001 Eosinophils use eosinophil peroxidase, hydrogen peroxide (H(2)O(2)), and bromide ion (Br(-)) to generate hypobromous acid (HOBr), a brominating intermediate. hypobromous acid 105-121 eosinophil peroxidase Homo sapiens 16-37 11329272-1 2001 Eosinophils use eosinophil peroxidase, hydrogen peroxide (H(2)O(2)), and bromide ion (Br(-)) to generate hypobromous acid (HOBr), a brominating intermediate. hypobromous acid 123-127 eosinophil peroxidase Homo sapiens 16-37 11329272-3 2001 In this study, we explore the possibility that HOBr generated by eosinophil peroxidase might oxidize nucleic acids. hypobromous acid 47-51 eosinophil peroxidase Homo sapiens 65-86 10452808-5 1999 The MPO-specific reaction is believed to proceed in two steps: (i) the enzymatic generation of hypobromous acid (HOBr) from KBr and H(2)O(2) at pH 5 and (ii) the spontaneous reaction of HOBr and H(2)O(2) with luminol to give a Br-CL signal. hypobromous acid 95-111 myeloperoxidase Homo sapiens 4-7 10452808-5 1999 The MPO-specific reaction is believed to proceed in two steps: (i) the enzymatic generation of hypobromous acid (HOBr) from KBr and H(2)O(2) at pH 5 and (ii) the spontaneous reaction of HOBr and H(2)O(2) with luminol to give a Br-CL signal. hypobromous acid 113-117 myeloperoxidase Homo sapiens 4-7 10452808-5 1999 The MPO-specific reaction is believed to proceed in two steps: (i) the enzymatic generation of hypobromous acid (HOBr) from KBr and H(2)O(2) at pH 5 and (ii) the spontaneous reaction of HOBr and H(2)O(2) with luminol to give a Br-CL signal. hypobromous acid 186-190 myeloperoxidase Homo sapiens 4-7 10452808-8 1999 Although EPX can also oxidize bromide to generate HOBr, activities of MPO and EPX can be distinguished at different pHs. hypobromous acid 50-54 eosinophil peroxidase Homo sapiens 9-12 1667454-2 1991 The chemiluminescence method was based on the detection of 1O2 generated by myeloperoxidase-catalyzed HOBr formation followed by the interaction of HOBr with H2O2 at pH 4.5. hypobromous acid 102-106 myeloperoxidase Homo sapiens 76-91 8619607-1 1996 Eosinophil peroxidase and myeloperoxidase (MPO) catalyze the oxidation of bromide by hydrogen peroxide to produce hypobromous acid (HOBr). hypobromous acid 132-136 myeloperoxidase Homo sapiens 26-41 8619607-1 1996 Eosinophil peroxidase and myeloperoxidase (MPO) catalyze the oxidation of bromide by hydrogen peroxide to produce hypobromous acid (HOBr). hypobromous acid 132-136 myeloperoxidase Homo sapiens 43-46 8619607-3 1996 In this study the equivalent reaction of HOBr, produced from MPO, bromide, and hydrogen peroxide, with oleic (18:1), linoleic (18:2), and arachidonic (20:4) acids has been investigated. hypobromous acid 41-45 myeloperoxidase Homo sapiens 61-64 8860070-3 1996 EPO in the presence of hydrogen peroxide (H(2)O(2)) and bromide (Br(-)) catalyzes the production of hypobromous acid (HOBr), which is felt to have a toxic effect on airway epithelial cells. hypobromous acid 100-116 eosinophil peroxidase Cavia porcellus 0-3 8860070-3 1996 EPO in the presence of hydrogen peroxide (H(2)O(2)) and bromide (Br(-)) catalyzes the production of hypobromous acid (HOBr), which is felt to have a toxic effect on airway epithelial cells. hypobromous acid 118-122 eosinophil peroxidase Cavia porcellus 0-3 7852368-3 1995 Results were consistent with oxidation of bromide to an equilibrium mixture of hypobromous acid (HOBr) and hypobromite ion (OBr-). hypobromous acid 79-95 leptin receptor Homo sapiens 98-101 15104210-5 2004 Hypobromous acid is likely a short-lived intermediate in this H2O2/MPO/bromide apoptosis, and reagent hypobromous acid and bromamines induce apoptosis in HL-60 cells. hypobromous acid 0-16 myeloperoxidase Homo sapiens 67-70 2002037-2 1991 The potent cytotoxic capacity of eosinophils for parasites and host tissue has in part been attributed to the catalytic action of eosinophil peroxidase (EPO), which preferentially oxidizes Br- to the powerful bleaching oxidant HOBr in buffers that mimic serum halide composition (100 mM Cl-, 20-100 microM Br-, less than 1 microM I-). hypobromous acid 227-231 eosinophil peroxidase Rattus norvegicus 130-151 2002037-2 1991 The potent cytotoxic capacity of eosinophils for parasites and host tissue has in part been attributed to the catalytic action of eosinophil peroxidase (EPO), which preferentially oxidizes Br- to the powerful bleaching oxidant HOBr in buffers that mimic serum halide composition (100 mM Cl-, 20-100 microM Br-, less than 1 microM I-). hypobromous acid 227-231 eosinophil peroxidase Rattus norvegicus 153-156 1972179-5 1990 EOs adherent to FCS-coated plastic wells more than double their production of superoxide anion and the cytotoxic EPO-derived oxidant HOBr when exposed to TNF, showing that TNF activates the respiratory burst of EOs attached to a "physiologic" surface. hypobromous acid 133-137 tumor necrosis factor Homo sapiens 154-157 1972179-5 1990 EOs adherent to FCS-coated plastic wells more than double their production of superoxide anion and the cytotoxic EPO-derived oxidant HOBr when exposed to TNF, showing that TNF activates the respiratory burst of EOs attached to a "physiologic" surface. hypobromous acid 133-137 tumor necrosis factor Homo sapiens 172-175 1985118-4 1991 Because EPO preferentially oxidizes Br- to hypobromous acid (HOBr) rather than Cl- to hypochlorous acid (HOCl) at physiologic halide concentrations, we characterized the Br(-)-dependent toxicity of both activated EOs and purified human EPO towards several types of endothelial cells and isolated working rat hearts. hypobromous acid 43-59 eosinophil peroxidase Rattus norvegicus 8-11 1985118-4 1991 Because EPO preferentially oxidizes Br- to hypobromous acid (HOBr) rather than Cl- to hypochlorous acid (HOCl) at physiologic halide concentrations, we characterized the Br(-)-dependent toxicity of both activated EOs and purified human EPO towards several types of endothelial cells and isolated working rat hearts. hypobromous acid 61-65 eosinophil peroxidase Rattus norvegicus 8-11 1985118-6 1991 H2O2 and purified human EPO, especially when bound to cell surfaces, mediated extraordinarily potent, completely Br(-)-dependent cytolysis of endothelial cells that was reversed by peroxidase inhibitors, HOBr scavengers, and competitive substrates. hypobromous acid 204-208 eosinophil peroxidase Rattus norvegicus 24-27 1985118-9 1991 These findings raise the possibility that EPO bound to endocardial cells might utilize H2O2 generated either by overlying phagocytes or endogenous cardiac metabolism along with the virtually inexhaustible supply of Br- from flowing blood to fuel HOBr-mediated cell damage. hypobromous acid 246-250 eosinophil peroxidase Rattus norvegicus 42-45 34984290-5 2021 Similar results followed the exposure of IL-6 to N-chlorotaurine (NCT) and hypobromous acid (HOBr), two other reactive species produced in vivo. hypobromous acid 75-91 interleukin 6 Homo sapiens 41-45 34863835-1 2022 Previously we have shown that lactoferrin (LTF), a protein of secondary neutrophilic granules, can be efficiently modified by hypohalous acids (HOCl and HOBr), which are produced at high concentrations during inflammation and oxidative/halogenative stress by myeloperoxidase, an enzyme of azurophilic neutrophilic granules. hypobromous acid 153-157 lactotransferrin Homo sapiens 30-41 34863835-1 2022 Previously we have shown that lactoferrin (LTF), a protein of secondary neutrophilic granules, can be efficiently modified by hypohalous acids (HOCl and HOBr), which are produced at high concentrations during inflammation and oxidative/halogenative stress by myeloperoxidase, an enzyme of azurophilic neutrophilic granules. hypobromous acid 153-157 lactotransferrin Homo sapiens 43-46 34863835-1 2022 Previously we have shown that lactoferrin (LTF), a protein of secondary neutrophilic granules, can be efficiently modified by hypohalous acids (HOCl and HOBr), which are produced at high concentrations during inflammation and oxidative/halogenative stress by myeloperoxidase, an enzyme of azurophilic neutrophilic granules. hypobromous acid 153-157 myeloperoxidase Homo sapiens 259-274 34984290-5 2021 Similar results followed the exposure of IL-6 to N-chlorotaurine (NCT) and hypobromous acid (HOBr), two other reactive species produced in vivo. hypobromous acid 93-97 interleukin 6 Homo sapiens 41-45 34984290-9 2021 Further studies on how HOCl and HOBr and their halogenated amine derivatives interact with IL-6 and related cytokines in vivo may open up alternative therapeutic interventions with these compounds in COVID-19 and other hyperinflammatory diseases. hypobromous acid 32-36 interleukin 6 Homo sapiens 91-95 35349263-5 2022 For example, the total organic bromine was less than 0.25 muM (as Br) at environmentally relevant bromine radicals" exposures of ~10-9 M s. The results give robust evidence that the scavenging of bromine radicals by DOM is a crucial step to prevent inorganic bromine radical chemistry from producing free bromine (HOBr/OBr-) and subsequent brominated byproducts. hypobromous acid 314-318 leptin receptor Homo sapiens 319-322 34438259-7 2021 The only well-established physiological role of peroxidasin is in the formation of a sulfilimine bond, which cross-links collagen IV in basement membranes via catalyzed oxidation of bromide to hypobromous acid. hypobromous acid 193-209 peroxidasin Homo sapiens 48-59 34438259-8 2021 We found that peroxidasin secreted from melanoma cells formed sulfilimine bonds in uncross-linked collagen IV, confirming peroxidasin activity and hypobromous acid formation. hypobromous acid 147-163 peroxidasin Homo sapiens 14-25 34438259-9 2021 Moreover, 3-bromotyrosine, a stable product of hypobromous acid reacting with tyrosine residues, was detected in invasive melanoma cells, substantiating that their expression of peroxidasin generates hypobromous acid, and showing that it does not exclusively react with collagen IV, but also with other biomolecules. hypobromous acid 47-63 peroxidasin Homo sapiens 178-189 34438259-9 2021 Moreover, 3-bromotyrosine, a stable product of hypobromous acid reacting with tyrosine residues, was detected in invasive melanoma cells, substantiating that their expression of peroxidasin generates hypobromous acid, and showing that it does not exclusively react with collagen IV, but also with other biomolecules. hypobromous acid 200-216 peroxidasin Homo sapiens 178-189 34116271-7 2021 The formation of bromate would be increased through increasing radical oxidation by synergistic ozonation, but can be depressed by relative higher H2O2 as the reducing agent of HOBr/OBr- intermediate. hypobromous acid 177-181 leptin receptor Homo sapiens 182-185 35077976-10 2022 ii) The inhibitory effects of chloride, bromide, HOBr/OBr- and HOCl/ClO- are dominant in neutral and alkaline conditions and may result in the formation of secondary oxidants (e.g., chlorine atoms or free bromine), which in turn contribute to pollutant degradation or form undesired oxidation by-products such as BrO3-, ClO3- and halogenated organic products. hypobromous acid 49-53 leptin receptor Homo sapiens 54-57 2474536-6 1989 The ability of either hypochlorous acid or hypobromous acid to directly disrupt alpha 2M function and structure was confirmed under cell-free conditions. hypobromous acid 43-59 alpha-2-macroglobulin Homo sapiens 80-88 2562426-6 1989 This suggested that, in the presence of MPO/H2O2 + Cl- + Br-, oxidation was due to HOBr from HOCl oxidation of Br- and/or oxidation of Br- by MPO/H2O2. hypobromous acid 83-87 myeloperoxidase Homo sapiens 40-43 32675287-11 2020 They show that HOBr produced by peroxidasin is selective for, but not limited to, the crosslinking of collagen IV. hypobromous acid 15-19 peroxidasin Mus musculus 32-43 32675287-12 2020 Based on our findings, the use of 3-bromotyrosine as a specific biomarker of oxidative damage by HOBr warrants further investigation in clinical conditions linked to high peroxidasin expression. hypobromous acid 97-101 peroxidasin Mus musculus 171-182 32675287-1 2020 Peroxidasin is a heme peroxidase that oxidizes bromide to hypobromous acid (HOBr), a powerful oxidant that promotes the formation of the sulfilimine crosslink in collagen IV in basement membranes. hypobromous acid 58-74 peroxidasin Mus musculus 0-11 32675287-1 2020 Peroxidasin is a heme peroxidase that oxidizes bromide to hypobromous acid (HOBr), a powerful oxidant that promotes the formation of the sulfilimine crosslink in collagen IV in basement membranes. hypobromous acid 76-80 peroxidasin Mus musculus 0-11 31015146-6 2019 The myeloperoxidase-derived oxidants hypochlorous acid, taurine chloramine, hypobromous acid, and hypothiocyanous acid, all at 10 muM, cross-linked calprotectin (5 muM) via reversible disulfide bonds. hypobromous acid 76-92 myeloperoxidase Homo sapiens 4-19 32675287-2 2020 We investigated whether HOBr released by peroxidasin leads to other oxidative modifications of proteins, particularly bromination of tyrosine residues, in peroxidasin-expressing PFHR9 cells. hypobromous acid 24-28 peroxidasin Mus musculus 41-52 32675287-2 2020 We investigated whether HOBr released by peroxidasin leads to other oxidative modifications of proteins, particularly bromination of tyrosine residues, in peroxidasin-expressing PFHR9 cells. hypobromous acid 24-28 peroxidasin Mus musculus 155-166 32571911-3 2020 The formation of sulfilimine cross-links depends on the ability of peroxidasin to use bromide and hydrogen peroxide substrates to produce hypobromous acid (HOBr). hypobromous acid 138-154 peroxidasin Homo sapiens 67-78 32571911-3 2020 The formation of sulfilimine cross-links depends on the ability of peroxidasin to use bromide and hydrogen peroxide substrates to produce hypobromous acid (HOBr). hypobromous acid 156-160 peroxidasin Homo sapiens 67-78 32571911-5 2020 Whether the HOBr generated by peroxidasin is used very selectively for creating sulfilimine cross-links or whether it also causes oxidative damage to bystander molecules (e.g., generating bromotyrosine residues in basement membrane proteins) is unclear. hypobromous acid 12-16 peroxidasin Homo sapiens 30-41 30279272-2 2018 Exposure of the cryptic epitope is thought to occur via disruption of sulfilimine crosslinks in the NC1 domain that are formed by peroxidasin-dependent production of hypobromous acid. hypobromous acid 166-182 peroxidasin Homo sapiens 130-141 30279272-9 2018 Enriched anti-peroxidasin antibodies inhibited peroxidasin-mediated hypobromous acid production in vitro. hypobromous acid 68-84 peroxidasin Homo sapiens 14-25 30279272-9 2018 Enriched anti-peroxidasin antibodies inhibited peroxidasin-mediated hypobromous acid production in vitro. hypobromous acid 68-84 peroxidasin Homo sapiens 47-58 29653357-7 2018 However, the oxidation/degradation of NHBrCl in the Co(II)/PMS process reforms HOBr, and, although less in quantity, is oxidized to BrO3- at higher Co(II) and Br- concentrations. hypobromous acid 79-83 mitochondrially encoded cytochrome c oxidase II Homo sapiens 52-58 30156836-1 2018 The specific detection of eosinophil peroxidase (EPO) activity requires the difficult distinction between hypobromous acid generated by EPO and hypochlorous acid generated by other haloperoxidases. hypobromous acid 106-122 eosinophil peroxidase Mus musculus 26-47 30156836-1 2018 The specific detection of eosinophil peroxidase (EPO) activity requires the difficult distinction between hypobromous acid generated by EPO and hypochlorous acid generated by other haloperoxidases. hypobromous acid 106-122 eosinophil peroxidase Mus musculus 49-52 28657332-5 2017 Recent Advances: Peroxidasin (PXDN), a BM-associated animal heme peroxidase, generates hypobromous acid (HOBr) to form sulfilimine cross-links within the collagen IV network of BM. hypobromous acid 87-103 peroxidasin Homo sapiens 17-28 29626421-7 2018 Results from NADH bromohydrin measurements indicates that low micromolar HOBr generated by peroxidasin was sufficient for maximum sulfilimine cross-linking, whereas 100 muM reagent HOBr or taurine bromamine was less efficient. hypobromous acid 73-77 peroxidasin Homo sapiens 91-102 29626421-11 2018 In conclusion, HOBr is produced by peroxidasin in the extracellular matrix. hypobromous acid 15-19 peroxidasin Homo sapiens 35-46 28657332-5 2017 Recent Advances: Peroxidasin (PXDN), a BM-associated animal heme peroxidase, generates hypobromous acid (HOBr) to form sulfilimine cross-links within the collagen IV network of BM. hypobromous acid 87-103 peroxidasin Homo sapiens 30-34 28657332-5 2017 Recent Advances: Peroxidasin (PXDN), a BM-associated animal heme peroxidase, generates hypobromous acid (HOBr) to form sulfilimine cross-links within the collagen IV network of BM. hypobromous acid 105-109 peroxidasin Homo sapiens 17-28 28657332-5 2017 Recent Advances: Peroxidasin (PXDN), a BM-associated animal heme peroxidase, generates hypobromous acid (HOBr) to form sulfilimine cross-links within the collagen IV network of BM. hypobromous acid 105-109 peroxidasin Homo sapiens 30-34 28657332-8 2017 CRITICAL ISSUES: The molecular mechanism whereby PXDN uses HOBr as a reactive intermediate to cross-link collagen IV, yet avoid collateral damage to nearby BM proteins, remains unclear. hypobromous acid 59-63 peroxidasin Homo sapiens 49-53 28825741-0 2017 Kinetics of the BrO + HO2 reaction over the temperature range T = 246-314 K. The kinetics of the reaction between gas phase BrO and HO2 radicals, BrO + HO2 HOBr + O2 (1), have been studied over the atmospherically relevant temperature range T = 246-314 K and at ambient pressure, p = 760 +- 20 Torr, using laser flash photolysis coupled with ultraviolet absorption spectroscopy. hypobromous acid 158-162 heme oxygenase 2 Homo sapiens 22-25 28587811-2 2017 Here, we present the development of a sensitive and specific assay for determination of the halogenating enzymatic activity of MPO and EPO based on the electrophilic attack of HOCl and HOBr on aromatic ring of dansylglycine (DG). hypobromous acid 185-189 myeloperoxidase Homo sapiens 127-130 28587811-2 2017 Here, we present the development of a sensitive and specific assay for determination of the halogenating enzymatic activity of MPO and EPO based on the electrophilic attack of HOCl and HOBr on aromatic ring of dansylglycine (DG). hypobromous acid 185-189 eosinophil peroxidase Homo sapiens 135-138 25912480-5 2015 Human 5-LOX was incubated with increasing amounts of HOCl or HOBr. hypobromous acid 61-65 arachidonate 5-lipoxygenase Homo sapiens 6-11 26456401-1 2015 At the sites of inflammation, hypohalous acids, such as hypochlorous acid and hypobromous acid (HOBr), are produced by myeloperoxidase. hypobromous acid 78-94 myeloperoxidase Homo sapiens 119-134 26456401-1 2015 At the sites of inflammation, hypohalous acids, such as hypochlorous acid and hypobromous acid (HOBr), are produced by myeloperoxidase. hypobromous acid 96-100 myeloperoxidase Homo sapiens 119-134 27785502-0 2016 A theoretical study of the atmospherically important radical-radical reaction BrO + HO2; the product channel O2(a1Deltag) + HOBr is formed with the highest rate. hypobromous acid 124-128 heme oxygenase 2 Homo sapiens 84-87 27785502-1 2016 A theoretical study has been made of the BrO + HO2 reaction, a radical-radical reaction which contributes to ozone depletion in the atmosphere via production of HOBr. hypobromous acid 161-165 heme oxygenase 2 Homo sapiens 47-50 25912480-10 2015 Additionally, the formation of 8-HpETE and 12-HpETE by 5-LOX rose slightly with increasing HOCl and HOBr. hypobromous acid 100-104 arachidonate 5-lipoxygenase Homo sapiens 55-60 25264081-8 2014 This dye is selectively oxidized by the MPO and EPO halogenation products hypochlorous and hypobromous acid. hypobromous acid 91-107 myeloperoxidase Homo sapiens 40-43 25611970-7 2015 H2O2 is thus consumed in a catalytic cycle and leads to less efficient HOBr scavenging at even low iodide concentrations (<1 muM). hypobromous acid 71-75 latexin Homo sapiens 128-131 25264081-8 2014 This dye is selectively oxidized by the MPO and EPO halogenation products hypochlorous and hypobromous acid. hypobromous acid 91-107 erythropoietin Homo sapiens 48-51 24632382-6 2014 This article reviews recent developments in our understanding of the cellular reactivity of hypochlorous acid, hypobromous acid, and hypothiocyanous acid, the major oxidants produced by myeloperoxidase under physiological conditions. hypobromous acid 111-127 myeloperoxidase Homo sapiens 186-201 25438766-5 2014 Fourteen compounds were found to be potent inhibitors with IC50 values <1muM, suggesting these compounds could be considered as potential modulators of pro-oxidative tissue injury pertubated by the inflammatory MPO/H2O2/HOCl/HOBr system. hypobromous acid 228-232 myeloperoxidase Homo sapiens 214-217 23719833-11 2013 Inhibition of myeloperoxidase involves paracetamol oxidation and concomitant decreased formation of halogenating oxidants (e.g. hypochlorous acid, hypobromous acid) that may be associated with multiple inflammatory pathologies including atherosclerosis and rheumatic diseases. hypobromous acid 147-163 myeloperoxidase Homo sapiens 14-29 24384524-1 2014 Halogenated lipids, proteins, and lipoproteins formed in reactions with myeloperoxidase (MPO)-derived hypochlorous acid (HOCl) and hypobromous acid (HOBr) can contribute to the regulation of functional activity of cells and serve as mediators of inflammation. hypobromous acid 149-153 myeloperoxidase Homo sapiens 72-87 24384524-1 2014 Halogenated lipids, proteins, and lipoproteins formed in reactions with myeloperoxidase (MPO)-derived hypochlorous acid (HOCl) and hypobromous acid (HOBr) can contribute to the regulation of functional activity of cells and serve as mediators of inflammation. hypobromous acid 149-153 myeloperoxidase Homo sapiens 89-92 23865454-4 2013 Here we show for the first time a direct comparison of the abilities of Sec-containing mTR3 and the Cys-orthologue from D. melanogaster (DmTR) to resist inactivation by oxidation from a variety of oxidants including H2O2, hydroxyl radical, peroxynitrite, hypochlorous acid, hypobromous acid, and hypothiocyanous acid. hypobromous acid 274-290 thioredoxin reductase 2 Mus musculus 87-91 23685182-1 2013 Hypobromous acid (HOBr) is formed by eosinophil peroxidase and myeloperoxidase in the presence of H2O2, Cl(-), and Br(-) in the host defense system of humans, protecting against invading bacteria. hypobromous acid 0-16 myeloperoxidase Homo sapiens 63-78 23685182-1 2013 Hypobromous acid (HOBr) is formed by eosinophil peroxidase and myeloperoxidase in the presence of H2O2, Cl(-), and Br(-) in the host defense system of humans, protecting against invading bacteria. hypobromous acid 18-22 myeloperoxidase Homo sapiens 63-78 23590281-2 2013 Taurine, a non-protein amino acid present in high amounts in the leukocytes, reacts instantaneously with HOBr leading to their haloamine derivative taurine dibromamine (Tau-NBr2). hypobromous acid 105-109 neighbor of BRCA1 lncRNA 2 Homo sapiens 173-177 23590281-6 2013 We found that the oxidation of lysozyme by Tau-NBr2 decreased its enzymatic activity in 80%, which was significant higher compared to the effect of its precursor HOBr (30%). hypobromous acid 162-166 neighbor of BRCA1 lncRNA 2 Homo sapiens 47-51 23590281-7 2013 The study and comparison of Tau-NBr2 and HOBr regarding the alterations provoked in the intrinsic fluorescence, synchronous fluorescence, resonance light scattering and near and far-UV circular dichroism spectra of lysozyme and oxidized lysozyme revealed that tryptophan residues in the active site of the protein were the main target for Tau-NBr2 and could explain its efficacy as inhibitor of lysozyme enzymatic activity. hypobromous acid 41-45 neighbor of BRCA1 lncRNA 2 Homo sapiens 343-347 23865454-4 2013 Here we show for the first time a direct comparison of the abilities of Sec-containing mTR3 and the Cys-orthologue from D. melanogaster (DmTR) to resist inactivation by oxidation from a variety of oxidants including H2O2, hydroxyl radical, peroxynitrite, hypochlorous acid, hypobromous acid, and hypothiocyanous acid. hypobromous acid 274-290 eukaryotic elongation factor, selenocysteine-tRNA-specific Mus musculus 72-75 23323704-1 2013 HOBr, formed via oxidation of bromide by free available chlorine (FAC), is frequently assumed to be the sole species responsible for generating brominated disinfection byproducts (DBPs). hypobromous acid 0-4 FA complementation group C Homo sapiens 66-69 23327477-3 2013 Herein, reactions of HOCl and HOBr with three well-characterized proteins [adenylate kinase (ADK), ribose binding protein, and bovine serum albumin] were characterized. hypobromous acid 30-34 adenosine kinase Homo sapiens 75-91 23327477-3 2013 Herein, reactions of HOCl and HOBr with three well-characterized proteins [adenylate kinase (ADK), ribose binding protein, and bovine serum albumin] were characterized. hypobromous acid 30-34 adenosine kinase Homo sapiens 93-96 22982576-3 2012 Phagocyte-derived myeloperoxidase (MPO) utilizes chloride and bromide, in the presence of hydrogen peroxide (H(2)O(2)), to generate hypochlorous acid and hypobromous acid, potent oxidizing species that are known to kill invading pathogens. hypobromous acid 154-170 myeloperoxidase Homo sapiens 35-38 23438648-5 2013 Another major participant of inflammatory response is the enzyme myeloperoxidase (MPO) which is secreted by neutrophils in the focus of inflammation and catalyzes formation of HOCl and HOBr. hypobromous acid 185-189 myeloperoxidase Homo sapiens 65-80 23438648-5 2013 Another major participant of inflammatory response is the enzyme myeloperoxidase (MPO) which is secreted by neutrophils in the focus of inflammation and catalyzes formation of HOCl and HOBr. hypobromous acid 185-189 myeloperoxidase Homo sapiens 82-85 22982576-8 2012 Under physiological pH and concentrations of halides (100muM KBr, 100muM KSCN, and 100mM NaCl), VPO1 utilizes approximately 45% of H(2)O(2) for the generation of hypobromous acid, 35% for hypothiocyanous acid, and 18% for hypochlorous acid. hypobromous acid 162-178 peroxidasin Homo sapiens 96-100 22982576-7 2012 VPO1, like MPO but unlike lactoperoxidase, is able to generate hypochlorous acid, hypobromous acid, and hypothiocyanous acid in the presence of H(2)O(2). hypobromous acid 82-98 peroxidasin Homo sapiens 0-4 20932962-4 2011 In contrast, chloro- and bromohydrins as well as dihalogenides are formed by the addition of HOCl or HOBr to the olefinic groups of the fatty acyl residues of lipids or under the influence of the enzyme myeloperoxidase (MPO) from Cl(-) and H(2)O(2). hypobromous acid 101-105 myeloperoxidase Homo sapiens 203-218 22963047-9 2012 Bromate formation is initiated by the formation of a complex between CuO and HOBr/OBr(-), which then reacts with HOBr to generate bromite. hypobromous acid 113-117 leptin receptor Homo sapiens 78-81 21892922-2 2012 MPO catalyses the oxidation of Cl-, Br- and SCN- by H2O2 to generate the powerful oxidants hypochlorous acid (HOCl), hypobromous acid (HOBr) and hypothiocyanous acid (HOSCN) respectively. hypobromous acid 135-139 myeloperoxidase Homo sapiens 0-3 21241706-2 2011 Under inflammatory condition, cellular DNA is damaged by hypobromous acid, which is generated by myeloperoxidase and eosinophil peroxidase. hypobromous acid 57-73 myeloperoxidase Homo sapiens 97-112 21241706-2 2011 Under inflammatory condition, cellular DNA is damaged by hypobromous acid, which is generated by myeloperoxidase and eosinophil peroxidase. hypobromous acid 57-73 eosinophil peroxidase Homo sapiens 117-138 20932962-4 2011 In contrast, chloro- and bromohydrins as well as dihalogenides are formed by the addition of HOCl or HOBr to the olefinic groups of the fatty acyl residues of lipids or under the influence of the enzyme myeloperoxidase (MPO) from Cl(-) and H(2)O(2). hypobromous acid 101-105 myeloperoxidase Homo sapiens 220-223 20408436-2 2010 Primary AH (HOCl and HOBr) are produced through oxidation of Cl- and Br- respectively by hydrogen peroxide catalyzed by myeloperoxidase or oesinophilic peroxidase. hypobromous acid 21-25 myeloperoxidase Homo sapiens 120-135 20647044-11 2010 Our findings suggest that MPO produces hypobromous acid as well as hypochlorous acid in the airways of children with CF and that these oxidants are involved in the early pathogenesis of CF. hypobromous acid 39-55 myeloperoxidase Homo sapiens 26-29 20528774-1 2010 MPO (myeloperoxidase) catalyses the oxidation of chloride, bromide and thiocyanate by hydrogen peroxide to HOCl (hypochlorous acid), HOBr (hypobromous acid) and HOSCN (hypothiocyanous acid) respectively. hypobromous acid 133-137 myeloperoxidase Mus musculus 0-3 20528774-1 2010 MPO (myeloperoxidase) catalyses the oxidation of chloride, bromide and thiocyanate by hydrogen peroxide to HOCl (hypochlorous acid), HOBr (hypobromous acid) and HOSCN (hypothiocyanous acid) respectively. hypobromous acid 133-137 myeloperoxidase Mus musculus 5-20 20528774-1 2010 MPO (myeloperoxidase) catalyses the oxidation of chloride, bromide and thiocyanate by hydrogen peroxide to HOCl (hypochlorous acid), HOBr (hypobromous acid) and HOSCN (hypothiocyanous acid) respectively. hypobromous acid 139-155 myeloperoxidase Mus musculus 0-3 20528774-1 2010 MPO (myeloperoxidase) catalyses the oxidation of chloride, bromide and thiocyanate by hydrogen peroxide to HOCl (hypochlorous acid), HOBr (hypobromous acid) and HOSCN (hypothiocyanous acid) respectively. hypobromous acid 139-155 myeloperoxidase Mus musculus 5-20 20528774-6 2010 Inhibition also occurs with MPO-generated HOCl and HOBr, but is more marked with MPO-generated HOSCN, particularly at longer incubation times. hypobromous acid 51-55 myeloperoxidase Mus musculus 28-31 19788922-1 2010 The potent oxidants hypochlorous acid (HOCl) and hypobromous acid (HOBr) are produced extracellularly by myeloperoxidase, following release of this enzyme from activated leukocytes. hypobromous acid 67-71 myeloperoxidase Homo sapiens 105-120 19788922-7 2010 In contrast, the heparan sulfate chains of HOCl/HOBr-modified perlecan retained their ability to bind FGF-2 and collagen V and were able to promote FGF-2-dependent cellular proliferation. hypobromous acid 48-52 fibroblast growth factor 2 Homo sapiens 102-107 19788922-7 2010 In contrast, the heparan sulfate chains of HOCl/HOBr-modified perlecan retained their ability to bind FGF-2 and collagen V and were able to promote FGF-2-dependent cellular proliferation. hypobromous acid 48-52 fibroblast growth factor 2 Homo sapiens 148-153 19968966-1 2010 The heme peroxidase enzyme myeloperoxidase (MPO) is released by activated neutrophils and monocytes, where it uses hydrogen peroxide (H(2)O(2)) to catalyze the production of the potent oxidants hypochlorous acid (HOCl), hypobromous acid (HOBr) and hypothiocyanous acid (HOSCN) from halide and pseudohalide (SCN(-)) ions. hypobromous acid 238-242 myeloperoxidase Homo sapiens 27-42 19968966-1 2010 The heme peroxidase enzyme myeloperoxidase (MPO) is released by activated neutrophils and monocytes, where it uses hydrogen peroxide (H(2)O(2)) to catalyze the production of the potent oxidants hypochlorous acid (HOCl), hypobromous acid (HOBr) and hypothiocyanous acid (HOSCN) from halide and pseudohalide (SCN(-)) ions. hypobromous acid 238-242 myeloperoxidase Homo sapiens 44-47 19968966-3 2010 It is shown here that acetaminophen (paracetamol), a phenol-based drug with analgesic and antipyretic actions, is an efficient inhibitor of HOCl and HOBr generation by isolated MPO-H(2)O(2)-halide systems. hypobromous acid 149-153 myeloperoxidase Homo sapiens 177-180 19708016-1 2009 Hypobromous acid (HOBr) produced by both eosinophil peroxidase (EPO) and myeloperoxidase (MPO) is a stronger oxidant than HOCl, and is also essential for optimal and efficient microbial killing. hypobromous acid 0-16 eosinophil peroxidase Homo sapiens 41-62 19708016-1 2009 Hypobromous acid (HOBr) produced by both eosinophil peroxidase (EPO) and myeloperoxidase (MPO) is a stronger oxidant than HOCl, and is also essential for optimal and efficient microbial killing. hypobromous acid 0-16 eosinophil peroxidase Homo sapiens 64-67 19708016-1 2009 Hypobromous acid (HOBr) produced by both eosinophil peroxidase (EPO) and myeloperoxidase (MPO) is a stronger oxidant than HOCl, and is also essential for optimal and efficient microbial killing. hypobromous acid 0-16 myeloperoxidase Homo sapiens 73-88 19708016-1 2009 Hypobromous acid (HOBr) produced by both eosinophil peroxidase (EPO) and myeloperoxidase (MPO) is a stronger oxidant than HOCl, and is also essential for optimal and efficient microbial killing. hypobromous acid 0-16 myeloperoxidase Homo sapiens 90-93 19708016-1 2009 Hypobromous acid (HOBr) produced by both eosinophil peroxidase (EPO) and myeloperoxidase (MPO) is a stronger oxidant than HOCl, and is also essential for optimal and efficient microbial killing. hypobromous acid 18-22 eosinophil peroxidase Homo sapiens 41-62 19708016-1 2009 Hypobromous acid (HOBr) produced by both eosinophil peroxidase (EPO) and myeloperoxidase (MPO) is a stronger oxidant than HOCl, and is also essential for optimal and efficient microbial killing. hypobromous acid 18-22 eosinophil peroxidase Homo sapiens 64-67 19708016-1 2009 Hypobromous acid (HOBr) produced by both eosinophil peroxidase (EPO) and myeloperoxidase (MPO) is a stronger oxidant than HOCl, and is also essential for optimal and efficient microbial killing. hypobromous acid 18-22 myeloperoxidase Homo sapiens 73-88 19708016-1 2009 Hypobromous acid (HOBr) produced by both eosinophil peroxidase (EPO) and myeloperoxidase (MPO) is a stronger oxidant than HOCl, and is also essential for optimal and efficient microbial killing. hypobromous acid 18-22 myeloperoxidase Homo sapiens 90-93 18851713-6 2009 Addition of SOD (superoxide dismutase) doubled the amount of HOBr detected. hypobromous acid 61-65 superoxide dismutase 1 Homo sapiens 12-15 18851713-6 2009 Addition of SOD (superoxide dismutase) doubled the amount of HOBr detected. hypobromous acid 61-65 superoxide dismutase 1 Homo sapiens 17-37 18657284-5 2008 Further investigation indicates that the effective BFP minimization can be ascribed to neither the surface adsorption of BrO(3)(-) or Br(-) on CeO(2) nor the surface reduction of BrO(3)(-) to HOBr/OBr(-) by CeO(2). hypobromous acid 192-196 ring finger protein 112 Homo sapiens 51-54 18759245-15 2008 Eosinophil peroxidase catalyzes the H2O2 oxidation of Br- to HOBr, which N-brominates taurine to N-bromotaurine at its concentration of 15 mM in eosinophils. hypobromous acid 61-65 eosinophil peroxidase Homo sapiens 0-21 18605737-2 2008 These lipids, in contrast to other phospholipids, have been reported to be targets of HOCl/HOBr generated by myeloperoxidase, with elevated levels of the products of these reactions (alpha-chloro/alpha-bromo aldehydes and unsaturated lysophospholipids) having been detected in human atherosclerotic lesions. hypobromous acid 91-95 myeloperoxidase Homo sapiens 109-124 18657284-8 2008 Another possible reason for the BFP minimization is that the CeO(2) could possibly reduce BrO() to HOBr/OBr(-) during the decomposition of H(2)O(2). hypobromous acid 99-103 ring finger protein 112 Homo sapiens 32-35 17209551-3 2007 The enzyme uses hydrogen peroxide (H2O2) and bromide (Br-), a preferred cosubstrate of EPO, to generate the cytotoxic oxidant hypobromous acid. hypobromous acid 126-142 eosinophil peroxidase Homo sapiens 87-90 17604010-1 2007 The leukocyte enzyme myeloperoxidase (MPO) is capable of catalyzing the oxidation of chloride and bromide ions, at physiological concentrations of these substrates, by hydrogen peroxide, generating hypochlorous acid (HOCl) and hypobromous acid (HOBr), respectively. hypobromous acid 245-249 myeloperoxidase Homo sapiens 21-36 17604010-1 2007 The leukocyte enzyme myeloperoxidase (MPO) is capable of catalyzing the oxidation of chloride and bromide ions, at physiological concentrations of these substrates, by hydrogen peroxide, generating hypochlorous acid (HOCl) and hypobromous acid (HOBr), respectively. hypobromous acid 245-249 myeloperoxidase Homo sapiens 38-41 17141727-3 2007 The flavonols rutin, quercetin, myricetin, and kaempferol inhibited the inactivation of alpha1-antitrypsin by HOCl and HOBr with rutin having the most pronounced effect. hypobromous acid 119-123 serpin family A member 1 Homo sapiens 88-106 17604010-8 2007 We attributed these effects to the involvement of HOBr arising from the reaction of MPO-derived HOCl with bromide rather than to the exchange of bromide with chlorine atoms of chlorohydrins or direct formation of HOBr by MPO. hypobromous acid 50-54 myeloperoxidase Homo sapiens 84-87 17604010-8 2007 We attributed these effects to the involvement of HOBr arising from the reaction of MPO-derived HOCl with bromide rather than to the exchange of bromide with chlorine atoms of chlorohydrins or direct formation of HOBr by MPO. hypobromous acid 50-54 myeloperoxidase Homo sapiens 221-224 17604010-8 2007 We attributed these effects to the involvement of HOBr arising from the reaction of MPO-derived HOCl with bromide rather than to the exchange of bromide with chlorine atoms of chlorohydrins or direct formation of HOBr by MPO. hypobromous acid 213-217 myeloperoxidase Homo sapiens 221-224 17348389-1 2007 We have demonstrated that hypochlorite (HOCI/OCl-) and hypobromite (HOBr/OBr-) can react with tert-butyl hydroperoxide with close rate constants (k(HOCl) = 10,8 M(-1) x s(1); k(HOBr) = 8,9 M(-1) x (s(-1)). hypobromous acid 177-181 leptin receptor Homo sapiens 69-72 17014424-1 2007 EPO (eosinophil peroxidase) and MPO (myeloperoxidase) are highly basic haem enzymes that can catalyse the production of HOBr (hypobromous acid). hypobromous acid 120-124 eosinophil peroxidase Homo sapiens 0-3 17014424-1 2007 EPO (eosinophil peroxidase) and MPO (myeloperoxidase) are highly basic haem enzymes that can catalyse the production of HOBr (hypobromous acid). hypobromous acid 120-124 eosinophil peroxidase Homo sapiens 5-26 17014424-1 2007 EPO (eosinophil peroxidase) and MPO (myeloperoxidase) are highly basic haem enzymes that can catalyse the production of HOBr (hypobromous acid). hypobromous acid 120-124 myeloperoxidase Homo sapiens 32-35 17014424-1 2007 EPO (eosinophil peroxidase) and MPO (myeloperoxidase) are highly basic haem enzymes that can catalyse the production of HOBr (hypobromous acid). hypobromous acid 120-124 myeloperoxidase Homo sapiens 37-52 17014424-1 2007 EPO (eosinophil peroxidase) and MPO (myeloperoxidase) are highly basic haem enzymes that can catalyse the production of HOBr (hypobromous acid). hypobromous acid 126-142 eosinophil peroxidase Homo sapiens 0-3 17014424-1 2007 EPO (eosinophil peroxidase) and MPO (myeloperoxidase) are highly basic haem enzymes that can catalyse the production of HOBr (hypobromous acid). hypobromous acid 126-142 eosinophil peroxidase Homo sapiens 5-26 17014424-1 2007 EPO (eosinophil peroxidase) and MPO (myeloperoxidase) are highly basic haem enzymes that can catalyse the production of HOBr (hypobromous acid). hypobromous acid 126-142 myeloperoxidase Homo sapiens 32-35 17014424-1 2007 EPO (eosinophil peroxidase) and MPO (myeloperoxidase) are highly basic haem enzymes that can catalyse the production of HOBr (hypobromous acid). hypobromous acid 126-142 myeloperoxidase Homo sapiens 37-52 16608171-1 2006 Second-order rate constants for the reaction of HOBr/OBr- (a putative killing agent of eosinophils and a reactive oxygen species that is implicated in mutagenesis and in human inflammatory diseases) with SCN- (an endogenous species in human physiologic fluids) are determined by stopped-flow spectroscopy. hypobromous acid 48-52 sorcin Homo sapiens 204-207 16608171-2 2006 The proposed mechanism includes parallel pathways with Br+ transfer to SCN- by general acid catalysis and by direct reaction with HOBr. hypobromous acid 130-134 sorcin Homo sapiens 71-74 16608171-3 2006 HOBr reacts with SCN- with a second-order rate constant (2.3 x 10(9) M(-1) s(-1)) that is 2 orders of magnitude larger than that previously measured for the reaction of HOCl with SCN- (2.3 x 10(7) M(-1) s(-1)), and very close to the diffusion limit. hypobromous acid 0-4 sorcin Homo sapiens 17-20 16608171-3 2006 HOBr reacts with SCN- with a second-order rate constant (2.3 x 10(9) M(-1) s(-1)) that is 2 orders of magnitude larger than that previously measured for the reaction of HOCl with SCN- (2.3 x 10(7) M(-1) s(-1)), and very close to the diffusion limit. hypobromous acid 0-4 sorcin Homo sapiens 179-182 16608171-5 2006 On a molar basis, SCN- is the most effective scavenger of HOBr to be reported to date (200 times more effective than cysteine and 650 times more effective than methionine). hypobromous acid 58-62 sorcin Homo sapiens 18-21 16608171-6 2006 Computational models suggest that SCN- is competitive with respect to other scavengers at physiologically relevant concentrations, which leads us to propose it may limit the lifetime of HOBr and its propensity to inflict host tissue damage during inflammatory response, especially during eosinophilia. hypobromous acid 186-190 sorcin Homo sapiens 34-37 16608171-8 2006 Since one of the principal charges of eosinophil cells is to clear extracellular parasites via nonphagocytic mechanisms that involve degranulation of eosinophil peroxidase (EPO, the principal mammalian enzyme that produces HOBr), a larger role for OSCN- is suggested for parasitic infection. hypobromous acid 223-227 eosinophil peroxidase Homo sapiens 150-171 16608171-8 2006 Since one of the principal charges of eosinophil cells is to clear extracellular parasites via nonphagocytic mechanisms that involve degranulation of eosinophil peroxidase (EPO, the principal mammalian enzyme that produces HOBr), a larger role for OSCN- is suggested for parasitic infection. hypobromous acid 223-227 eosinophil peroxidase Homo sapiens 173-176 16375846-2 2006 In contrast, the mammalian homologues such as lactoperoxidase (LPO) and myeloperoxidase primarily oxidize halides and pseudohalides to the corresponding hypohalides (e.g., Br(-) to HOBr, Cl(-) to HOCl). hypobromous acid 181-185 lactoperoxidase Homo sapiens 46-61 16375846-2 2006 In contrast, the mammalian homologues such as lactoperoxidase (LPO) and myeloperoxidase primarily oxidize halides and pseudohalides to the corresponding hypohalides (e.g., Br(-) to HOBr, Cl(-) to HOCl). hypobromous acid 181-185 lactoperoxidase Homo sapiens 63-66 16297853-1 2006 Three unusual substrates-bromide (Br(-)), nitrite (NO(2)(-)), and thiocyanate (SCN(-))-compete for oxidation by eosinophil peroxidase (EPO) in physiologic fluids in the presence of H(2)O(2) to yield, respectively, hypobromous acid (HOBr), nitrogen dioxide (NO(2)()), or hypothiocyanous acid (HOSCN). hypobromous acid 214-230 eosinophil peroxidase Mus musculus 112-133 16125131-5 2006 In accord with previous studies, between pH 5 and 7, myeloperoxidase converted about 90% of available hydrogen peroxide to hypochlorous acid and the remainder to hypobromous acid. hypobromous acid 162-178 myeloperoxidase Homo sapiens 53-68 16125131-15 2006 We conclude that at physiological concentrations of chloride and bromide, hypobromous acid can be a major oxidant produced by myeloperoxidase. hypobromous acid 74-90 myeloperoxidase Homo sapiens 126-141 16111649-5 2006 However, the eosinophil peroxidase-H(2)O(2)-halide system forms directly HOCl and HOBr. hypobromous acid 82-86 eosinophil peroxidase Homo sapiens 13-34 16125131-3 2006 Hypobromous acid and hypothiocyanite are the major products of eosinophil peroxidase. hypobromous acid 0-16 eosinophil peroxidase Homo sapiens 63-84 16125131-4 2006 We have investigated the ability of myeloperoxidase to produce hypobromous acid in the presence of physiological concentrations of chloride and bromide. hypobromous acid 63-79 myeloperoxidase Homo sapiens 36-51 16297853-1 2006 Three unusual substrates-bromide (Br(-)), nitrite (NO(2)(-)), and thiocyanate (SCN(-))-compete for oxidation by eosinophil peroxidase (EPO) in physiologic fluids in the presence of H(2)O(2) to yield, respectively, hypobromous acid (HOBr), nitrogen dioxide (NO(2)()), or hypothiocyanous acid (HOSCN). hypobromous acid 214-230 eosinophil peroxidase Mus musculus 135-138 16297853-1 2006 Three unusual substrates-bromide (Br(-)), nitrite (NO(2)(-)), and thiocyanate (SCN(-))-compete for oxidation by eosinophil peroxidase (EPO) in physiologic fluids in the presence of H(2)O(2) to yield, respectively, hypobromous acid (HOBr), nitrogen dioxide (NO(2)()), or hypothiocyanous acid (HOSCN). hypobromous acid 232-236 eosinophil peroxidase Mus musculus 112-133 16297853-1 2006 Three unusual substrates-bromide (Br(-)), nitrite (NO(2)(-)), and thiocyanate (SCN(-))-compete for oxidation by eosinophil peroxidase (EPO) in physiologic fluids in the presence of H(2)O(2) to yield, respectively, hypobromous acid (HOBr), nitrogen dioxide (NO(2)()), or hypothiocyanous acid (HOSCN). hypobromous acid 232-236 eosinophil peroxidase Mus musculus 135-138 16166591-1 2006 In vivo, bromide (Br(-)), nitrite (NO(2)(-)), and thiocyanate (SCN(-)) compete for oxidation by eosinophil peroxidase (EPO) and H(2)O(2), yielding, respectively, HOBr, NO(2)., and HOSCN. hypobromous acid 162-166 eosinophil peroxidase Homo sapiens 96-117 16166591-1 2006 In vivo, bromide (Br(-)), nitrite (NO(2)(-)), and thiocyanate (SCN(-)) compete for oxidation by eosinophil peroxidase (EPO) and H(2)O(2), yielding, respectively, HOBr, NO(2)., and HOSCN. hypobromous acid 162-166 eosinophil peroxidase Homo sapiens 119-122