PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20730144-6 2010 We apply this new method in studies of the interaction of the carbon-rich interstellar species C(4)(X(3)Sigma) with atomic He. Carbon 62-68 complement C4A (Rodgers blood group) Homo sapiens 95-99 20336010-4 2010 In addition an unprecedented reactivity of DCP as a very reactive heterocyclic electrophile at the C-4 carbon was also evidenced: by changing the experimental conditions, cyanopyrrolyl- and cyanoindolyl-pyridazines were obtained through reactions of pyrrole and indole systems as carbon nucleophiles in formal SNAr2 processes where a CN group of DCP acts as leaving group. Carbon 103-109 complement C4A (Rodgers blood group) Homo sapiens 99-102 20685216-5 2010 Hydroxylations at C-6, C-10, C-11, C-15 positions and alpha,beta-unsaturation at C-1/C-2, C-4/C-5 showed potent inhibitory activities against these enzymes. Carbon 18-19 complement C4A (Rodgers blood group) Homo sapiens 90-97 19902945-5 2009 The unusual reactivity of 4 is likely to result from the contribution of an ionized carbene-type resonance structure that facilitates nucleophilic addition to the most electrophilic carbon atom (C-4) in this charged radical. Carbon 182-188 complement C4A (Rodgers blood group) Homo sapiens 195-198 19578270-3 2009 Intermolecular N-H...O=C interactions form one-dimensional C(4) chains along [010]. Carbon 23-24 complement C4A (Rodgers blood group) Homo sapiens 59-63 17924615-2 2007 The structures of two representative nonpolar metabolites were identified earlier as dimers of 17beta-estradiol linked through a diaryl ether bond between the C-3 phenolic oxygen of one molecule and the C-2 or C-4 aromatic carbon of another. Carbon 223-229 complement C4A (Rodgers blood group) Homo sapiens 210-213 19791508-2 2009 By comparing the interactions of each analogue with beta-tubulin, the structure-activity relationships are summarized as follow: C-2 benzoyl and taxane ring systems are the essential groups for microtubule binding, the improvements of bioactivity and bioavailability are dependent on the substituents at positions C-1, C-4, C-7, C-9, C-10, and C-14, whereas the C-13 side chain mainly provides a specific binding. Carbon 129-130 complement C4A (Rodgers blood group) Homo sapiens 319-322 19358583-1 2009 We report an approach that allows the efficient synthesis of the designed sphingoid base analogues in which the conformational restriction is introduced by incorporation of a cyclic moiety between the 2-amino group and the C-4 carbon atom of the sphingoid base. Carbon 227-233 complement C4A (Rodgers blood group) Homo sapiens 223-226 18555688-3 2008 The inhibition degrees of 4 and 5 were weaker than that of thiocarbamoylmethyl analog 3, indicating a remarkable effect of the carbon chain length in thiocarbamoylalkyl groups at the C-4 position on inhibitory activities against hPIV-1 sialidase. Carbon 127-133 complement C4A (Rodgers blood group) Homo sapiens 183-186 18784799-1 2008 Grasses using the C(4) photosynthetic pathway dominate today"s savanna ecosystems and account for approximately 20% of terrestrial carbon fixation. Carbon 131-137 complement C4A (Rodgers blood group) Homo sapiens 18-22 16358787-5 2005 As a result, atoms C-3 and C-4 of glucose become enriched with the heavy isotope, and subsequent mixing of atoms and the specificity of interactions in the photorespiration chain lead to an isotope weighting of the other atoms and an uneven distribution of carbon isotopes in glucose-6-phosphate and other photorespiration products. Carbon 257-263 complement C4A (Rodgers blood group) Homo sapiens 27-30 17194077-1 2007 Interconversion of carbon sites in boat-chair-boat (BCB) cyclodecane occurs by way of the twist-boat-chair (TBC) conformation, which predicts that C-1 exchanges with C-4, etc. Carbon 19-25 complement C4A (Rodgers blood group) Homo sapiens 166-169 17445553-9 2007 Sparse sample algorithms used to estimate 12-hour AUC including C(0), C(1), C(2), C(3), C(4), and/or C(6) showed a good correlation with the calculated AUC(0-6) (r(2) = .81-.96). Carbon 52-53 complement C4A (Rodgers blood group) Homo sapiens 88-92 15882852-5 2005 Deprotonation-induced chemical shifts in pH-variable (13)C NMR spectra show that the OH-groups next to internal carbon atoms C-3 and C-4 dissociate to a greater extent compared to OH-groups next to external carbon atoms C-1 and C-6. Carbon 57-58 complement C4A (Rodgers blood group) Homo sapiens 133-136 16171347-2 2005 The thermal transformations of as-deposited Fe(CO)(5) films adsorbed on Au(111)/mica and C(4), C(8), C(12), and C(16) self-assembled methyl-terminated monolayer organic surfaces have been studied using infrared spectroscopy to probe how the physical restructuring influences the sensitivity of these systems to low-energy electron beams. Carbon 47-48 complement C4A (Rodgers blood group) Homo sapiens 89-93 15882852-5 2005 Deprotonation-induced chemical shifts in pH-variable (13)C NMR spectra show that the OH-groups next to internal carbon atoms C-3 and C-4 dissociate to a greater extent compared to OH-groups next to external carbon atoms C-1 and C-6. Carbon 207-213 complement C4A (Rodgers blood group) Homo sapiens 133-136 15549797-4 2004 Allenes with electron-donating alkyl substituents R sterically unencumbered at the C-3 and C-4 carbons reacted with palladacycles I to afford benzopyrans IV in good yields (45-81%), exclusively as cis diastereomers. Carbon 95-102 complement C4A (Rodgers blood group) Homo sapiens 91-94 15839661-4 2005 Enynamides serve as 4pi components in a complementary version of the cycloaddition strategy which provides access to indoles and indolines substituted with carbon substituents at C-4. Carbon 156-162 complement C4A (Rodgers blood group) Homo sapiens 179-182 15680604-2 2005 The reactivity towards BCl(3) follows the order: C-4>or=C-2>C-6>C-3 for C-glucopyranosyl derivatives and C-3>or=C-4>C-6>C-2 for C-galactopyranosyl derivatives. Carbon 24-25 complement C4A (Rodgers blood group) Homo sapiens 49-52 15680604-2 2005 The reactivity towards BCl(3) follows the order: C-4>or=C-2>C-6>C-3 for C-glucopyranosyl derivatives and C-3>or=C-4>C-6>C-2 for C-galactopyranosyl derivatives. Carbon 24-25 complement C4A (Rodgers blood group) Homo sapiens 124-127 15941036-6 2005 Here, the CD2 rocking band data are used to determine the amount of gauche conformers at the deuterated carbon positions C-4 and C-6, and C-12. Carbon 104-110 complement C4A (Rodgers blood group) Homo sapiens 121-124 15941036-6 2005 Here, the CD2 rocking band data are used to determine the amount of gauche conformers at the deuterated carbon positions C-4 and C-6, and C-12. Carbon 10-11 complement C4A (Rodgers blood group) Homo sapiens 121-124 14599211-5 2003 In the case of glycosaminoglycan-derived amidyl radicals, evidence has been obtained in studies with model glycosides that these radicals undergo rapid intramolecular abstraction reactions to give carbon-centered radicals at C-2 on the N-acetyl glycosamine rings (via a 1,2-hydrogen atom shift) and at C-4 on the neighboring uronic acid residues (via 1,5-hydrogen atom shifts). Carbon 197-203 complement C4A (Rodgers blood group) Homo sapiens 302-305 15202900-4 2004 The key to the synthesis of 4 involves the stereoselective introduction of the hydroxymethyl group onto the C-4 carbon of the pyranose sugar. Carbon 112-118 complement C4A (Rodgers blood group) Homo sapiens 108-111 14599211-6 2003 The C-4 carbon-centered radicals, and analogous species derived from model glycosides, undergo pH-independent beta-scission reactions that result in glycosidic bond cleavage. Carbon 8-14 complement C4A (Rodgers blood group) Homo sapiens 4-7 12572994-6 2002 The maintenance of an (S)-configured C-4 carbon is optimal in the design of desferrithiocin-based iron chelators. Carbon 41-47 complement C4A (Rodgers blood group) Homo sapiens 37-40 12153282-5 2002 Bromo-lithium exchange at carbon atom C-4 and subsequent transmetalation to zinc or tin converted the 4-bromothiazoles 3 into carbon nucleophiles which underwent a second regioselective cross-coupling with another equivalent of 2,4-dibromothiazole (2). Carbon 26-32 complement C4A (Rodgers blood group) Homo sapiens 38-41 12153282-5 2002 Bromo-lithium exchange at carbon atom C-4 and subsequent transmetalation to zinc or tin converted the 4-bromothiazoles 3 into carbon nucleophiles which underwent a second regioselective cross-coupling with another equivalent of 2,4-dibromothiazole (2). Carbon 126-132 complement C4A (Rodgers blood group) Homo sapiens 38-41 12027680-1 2002 Aiming at a synthesis of spiro[2.4]hepta-4,6-dienes with a carbon substituent at C-4, we investigated solvolysis reactions of the thiatricycle 2, obtained from spiro[2.4]hepta-4,6-diene (1) and thiophosgene by [4 + 2] cycloaddition. Carbon 59-65 complement C4A (Rodgers blood group) Homo sapiens 81-84 12611275-4 2002 A regression study on 10 compounds showed a linear correlation of antiproliferative activity with electronic properties, expressed as the 13C NMR chemical shift for C-4 carbon atom (R2 = 0.97). Carbon 169-175 complement C4A (Rodgers blood group) Homo sapiens 165-168 12611275-6 2002 This finding leads to the expectation that the antiproliferative activity of propargyl thioquinolines can be predicted using the 13C NMR chemical shift value of their C-4 carbon atom. Carbon 171-177 complement C4A (Rodgers blood group) Homo sapiens 167-170 11322734-5 2001 Reactivity of the polysaccharide C-atoms was determined by 13C NMR spectroscopy: For dextran this was C-3 > C-2 > C-4, while for pullulan it was C-6 > C-3 > C-2 > C-4. Carbon 33-34 complement C4A (Rodgers blood group) Homo sapiens 120-123 11442413-4 2001 Stereoselective construction of a quaternary carbon at C-4 was achieved by alpha-alkylation of the cyano group and conversion of the sterically hindered cyano group to a methyl group via our novel reaction for conversion of primary aliphatic amines into alcohols. Carbon 45-51 complement C4A (Rodgers blood group) Homo sapiens 55-58 11322734-5 2001 Reactivity of the polysaccharide C-atoms was determined by 13C NMR spectroscopy: For dextran this was C-3 > C-2 > C-4, while for pullulan it was C-6 > C-3 > C-2 > C-4. Carbon 33-34 complement C4A (Rodgers blood group) Homo sapiens 178-181 9667976-1 1998 The development of novel monobactam inhibitors of HCMV protease incorporating a carbon side chain at C-4 and a urea function at N-1 is described. Carbon 80-86 complement C4A (Rodgers blood group) Homo sapiens 101-104 11178840-1 2001 [reaction: see text] The first total synthesis of (+/-)-scopadulin was accomplished by a stereoselective construction of a quaternary carbon at C-4, conversion of the hindered cyano group to a methyl group via our novel reaction for conversion of primary aliphatic amines into alcohols, and a highly chemo- and stereoselective methylation at C-16. Carbon 134-140 complement C4A (Rodgers blood group) Homo sapiens 144-147 10639284-2 1999 The data reveal a remarkable potency enhancement in those compounds that contain an sp(2) center at the C-4 carbon of the ring relative to similar, saturated compounds. Carbon 108-114 complement C4A (Rodgers blood group) Homo sapiens 104-107 10639284-4 1999 Comparisons were then made against compounds with similar functionality where the C-4 carbon was reduced to sp(3) hybridization and the effect was typically an order of magnitude loss in potency. Carbon 86-92 complement C4A (Rodgers blood group) Homo sapiens 82-85 9071738-11 1997 Based on E2 analogs bearing affinity-labeling groups, cysteine residues might be present in the binding site in the area of C-4, C-17 alpha, and C-17 beta, and a lysine residue might be located near C-16. Carbon 129-130 complement C4A (Rodgers blood group) Homo sapiens 124-127 9071738-11 1997 Based on E2 analogs bearing affinity-labeling groups, cysteine residues might be present in the binding site in the area of C-4, C-17 alpha, and C-17 beta, and a lysine residue might be located near C-16. Carbon 129-130 complement C4A (Rodgers blood group) Homo sapiens 124-127 1536570-1 1992 Exposure of MCF-7 breast cancer cells to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) causes an elevated cytochrome P450 content and a marked increase in the microsomal hydroxylation of 17 beta-estradiol (E2) at the C-2, C-4, C-15 alpha, and C-6 alpha positions. Carbon 13-14 complement C4A (Rodgers blood group) Homo sapiens 219-222 21619357-4 1996 As the chain length was reduced from C-18 to C-8 and C-4, the rate of diffusion also decreased. Carbon 37-38 complement C4A (Rodgers blood group) Homo sapiens 53-56 1321617-4 1992 The results lead to the conclusion that the hydroxyl radical formed in Fe(II)-elsamicin A plus dithiothreitol system oxidizes the deoxyribose moiety via hydrogen abstraction predominantly at the C-4" carbon of the deoxyribose backbone and ultimately produces strand breakage of DNA. Carbon 200-206 complement C4A (Rodgers blood group) Homo sapiens 195-198 7578038-6 1995 The data are consistent with acylation of the active site serine, loss of p-hydroxybenzeneacetic acid, and formation of a carbinolamine at the carbon deriving from C-4 of the lactam ring. Carbon 143-149 complement C4A (Rodgers blood group) Homo sapiens 164-167 16348538-2 1991 Spore-forming rods dominated in the enrichments when lactate, propionate, butyrate, or a mixture of aliphatic fatty acids (C(4) through C(6)) was added as a carbon source and electron donor. Carbon 157-163 complement C4A (Rodgers blood group) Homo sapiens 123-127 34157283-2 2021 The 9-carbon backbone of sialic acids can undergo extensive enzymatic modification in nature and O-acetylation at the C-4/7/8/9 position in particular is widely observed. Carbon 6-12 complement C4A (Rodgers blood group) Homo sapiens 118-127 16667188-0 1989 Mechanism of c(4) photosynthesis: a model describing the inorganic carbon pool in bundle sheath cells. Carbon 67-73 complement C4A (Rodgers blood group) Homo sapiens 13-17 16667188-1 1989 A theoretical model of the composition of the inorganic carbon pool generated in C(4) leaves during steady-state photosynthesis was derived. Carbon 56-62 complement C4A (Rodgers blood group) Homo sapiens 81-85 16667188-4 1989 Under these circumstances the flux of carbon through the C(4) acid cycle would have to exceed the net rate of CO(2) assimilation by 15.5%. Carbon 38-44 complement C4A (Rodgers blood group) Homo sapiens 57-61 16667188-7 1989 The model suggests that as the net photosynthesis rate changes in C(4) plants, the level and distribution of the components of the inorganic carbon pool change in such a way that C(4) acid overcycling is maintained in an approximately constant ratio with respect to the net photosynthesis rate. Carbon 141-147 complement C4A (Rodgers blood group) Homo sapiens 66-70 16667188-7 1989 The model suggests that as the net photosynthesis rate changes in C(4) plants, the level and distribution of the components of the inorganic carbon pool change in such a way that C(4) acid overcycling is maintained in an approximately constant ratio with respect to the net photosynthesis rate. Carbon 141-147 complement C4A (Rodgers blood group) Homo sapiens 179-183 3337720-3 1988 A non-cyclic pathway is suggested (reaction 2) for the direct biosynthesis of sucrose from the 3-PGA obtained from C-3, C-4 and C-5 of the six-carbon carboxylation adduct. Carbon 143-149 complement C4A (Rodgers blood group) Homo sapiens 120-123 7408842-5 1980 The measured values of the vicinal coupling constants between H-1" and the C-8 and C-4 carbons were employed to evaluate approximately the glycosidic angles chi of the nucleosides in the conformations syn and anti. Carbon 87-94 complement C4A (Rodgers blood group) Homo sapiens 83-86 3021640-4 1986 In the orthorhombic single crystal, we observed interaction of the unpaired electron, which is delocalized on the carbons C(3), C(4) and C(5) with one alpha-proton in position 4 and with four nonequivalent beta-protons connected with the carbon atoms C(2) and C(6). Carbon 114-120 complement C4A (Rodgers blood group) Homo sapiens 128-132 3743570-6 1986 The 13C chemical shifts of two sp2 quaternary carbons of bacteriopheophorbide c methyl ester (C-2 and C-4) were reassigned. Carbon 46-53 complement C4A (Rodgers blood group) Homo sapiens 102-105 3782058-5 1986 Furthermore, although the carbon-13 NMR signals of sphingosine C-1, C-2, C-3, C-4, and C-5 showed significant chemical shift differences between D-erythro and L-threo-sphingosines of lysosphingolipids, it was concluded that the signal position of sphingosine C-3 was the most important for the determination of D-erythro and L-threo configuration in the long chain base moieties of lysosphingolipids. Carbon 26-32 complement C4A (Rodgers blood group) Homo sapiens 78-81 6119109-11 1981 The 13C incorporation data indicate that carbons 1, 2, 3, and 4, but not 5, of glutamate serve as the four-carbon donor for the carboxamide carbon, C-5, C-4, and C-3, respectively, of the pyrazole ring of pyrazofurin. Carbon 41-48 complement C4A (Rodgers blood group) Homo sapiens 153-156 6119109-11 1981 The 13C incorporation data indicate that carbons 1, 2, 3, and 4, but not 5, of glutamate serve as the four-carbon donor for the carboxamide carbon, C-5, C-4, and C-3, respectively, of the pyrazole ring of pyrazofurin. Carbon 41-47 complement C4A (Rodgers blood group) Homo sapiens 153-156 6119109-11 1981 The 13C incorporation data indicate that carbons 1, 2, 3, and 4, but not 5, of glutamate serve as the four-carbon donor for the carboxamide carbon, C-5, C-4, and C-3, respectively, of the pyrazole ring of pyrazofurin. Carbon 107-113 complement C4A (Rodgers blood group) Homo sapiens 153-156 7213686-2 1981 13C spin-lattice relaxation times, nuclear Overhauser effects and spin-spin relaxation times have been measured for the C-4 carbon of cholesterol in phosphatidylcholine bilayers as a function of cholesterol content and temperature. Carbon 124-130 complement C4A (Rodgers blood group) Homo sapiens 120-123 29195134-2 2018 Their highly functionalised carbon skeleton, with fixed chirality at C-2 and C-4, makes them ideal starting materials for use in synthesis. Carbon 28-34 complement C4A (Rodgers blood group) Homo sapiens 77-80 30195263-6 2018 It is hypothesized that the free phosphate group affects the microenvironment around the target cytosine by activating the incoming nucleophile through hydrogen bonding with the water molecule, thus facilitating nucleophilic attack on the cytosine C-4 carbon. Carbon 252-258 complement C4A (Rodgers blood group) Homo sapiens 248-251 24646186-2 2014 Theory shows that this reaction is initiated by the addition of the para-tolyl radical to either the terminal acetylene carbon (C(4)) or a vinyl carbon (C(1)) leading eventually to two distinct radical intermediates. Carbon 120-126 complement C4A (Rodgers blood group) Homo sapiens 128-132 28751199-4 2017 Appropriate manipulation of the anomeric carbon in the furanose fused pyrrolidine ring skeleton afforded alpha-geminal disubstituted pyrrolidine iminosugars 3a-c and C-4 fluoro derivatives 4a-c. Carbon 41-47 complement C4A (Rodgers blood group) Homo sapiens 166-169 26345349-4 2015 The evolution of the carbon environment towards tetrahedral CO4 units, thus resembling the crystal chemistry of silicon, is predicted at higher pressures. Carbon 21-27 complement C4A (Rodgers blood group) Homo sapiens 60-63 27978704-2 2016 The crucial step in this synthesis was an intramolecular Friedel-Crafts reaction at C-4 of the indole derivative driven by the EDG/EWG within a compound that was rationally designed to prevent the cyclization reaction at the C-2 positon of indole, thereby successfully providing the complete carbon framework of 1. Carbon 292-298 complement C4A (Rodgers blood group) Homo sapiens 84-87 27290912-3 2016 Most of the pyridazinone derivatives are derived from substitution of the pyridazinone oxygen, nitrogen and C4/C5/C6 carbon positions. Carbon 117-123 complement C4A (Rodgers blood group) Homo sapiens 108-113 24304103-8 2014 Using linear regression, the best estimation of MPA AUC was provided by a model including C(30), C(2) and C(4): AUC = 8 5 + 0 77 C(30) + 4 0 C(2) + 1 7 C(4) (P < 0 0001). Carbon 54-55 complement C4A (Rodgers blood group) Homo sapiens 106-110 24646186-2 2014 Theory shows that this reaction is initiated by the addition of the para-tolyl radical to either the terminal acetylene carbon (C(4)) or a vinyl carbon (C(1)) leading eventually to two distinct radical intermediates. Carbon 145-151 complement C4A (Rodgers blood group) Homo sapiens 128-132 23218380-4 2013 The samples were treated by drying and wetting cycles prior to NMR analysis where the hornification phenomenon was recorded by spectral changes of the cellulose C-4 carbon signals. Carbon 165-171 complement C4A (Rodgers blood group) Homo sapiens 161-164 24328337-2 2014 By linking the ortho-carbons of the aromatics positioned at C-4 and C-5, a fused framework is generated, removing the distortion from planarity and enhancing the influence of the substituents on the redox properties. Carbon 21-28 complement C4A (Rodgers blood group) Homo sapiens 60-63 22898920-6 2013 Across seasons, forest birds primarily relied on C(3) carbon sources, whereas many farmland birds also assimilated C(4) carbon. Carbon 120-126 complement C4A (Rodgers blood group) Homo sapiens 115-119 22898920-7 2013 While C sources of frugivores and omnivores did not differ between forest and farmland communities, insectivores used more C(4) carbon in the farmland than in the forest. Carbon 128-134 complement C4A (Rodgers blood group) Homo sapiens 123-127 22128120-1 2011 In the late 1960s, a vibrant new research field was ignited by the discovery that instead of fixing CO(2) into a C(3) compound, some plants initially fix CO(2) into a four-carbon (C(4)) compound. Carbon 172-178 complement C4A (Rodgers blood group) Homo sapiens 180-184 22540597-6 2012 Carbon and oxygen atoms are arranged in CO4 tetrahedral units linked by oxygen atoms at the corners. Carbon 0-6 complement C4A (Rodgers blood group) Homo sapiens 40-43 22036122-4 2011 In the aqueous p-toluenesulfonic acid-d medium, C-6" and C-4" carbons of both alpha, and beta anomeric forms of D-cellobiose are significantly affected by increasing the sulfonic acid concentrations, and this may be due to a 1:1 interaction of p-toluenesulfonic acid-d with the C-6", C-4" region of the cellobiose molecule. Carbon 62-69 complement C4A (Rodgers blood group) Homo sapiens 57-60 22036122-4 2011 In the aqueous p-toluenesulfonic acid-d medium, C-6" and C-4" carbons of both alpha, and beta anomeric forms of D-cellobiose are significantly affected by increasing the sulfonic acid concentrations, and this may be due to a 1:1 interaction of p-toluenesulfonic acid-d with the C-6", C-4" region of the cellobiose molecule. Carbon 62-69 complement C4A (Rodgers blood group) Homo sapiens 284-287 23199576-4 2013 Carbon isotopic data suggest a wide range of foraging strategies, characterized by mixed C(3)/C(4) to C(4)-dominated diets in wooded grasslands to open woodlands. Carbon 0-6 complement C4A (Rodgers blood group) Homo sapiens 94-98 23199576-4 2013 Carbon isotopic data suggest a wide range of foraging strategies, characterized by mixed C(3)/C(4) to C(4)-dominated diets in wooded grasslands to open woodlands. Carbon 0-6 complement C4A (Rodgers blood group) Homo sapiens 102-106 22961686-2 2012 Here we report on the unequivocal (13)C NMR assignment of the brominated carbons at positions C-2 and C-4 of the cyclohexadiene ring, two carbons whose resonances are often incorrectly assigned. Carbon 73-80 complement C4A (Rodgers blood group) Homo sapiens 102-105 22961686-2 2012 Here we report on the unequivocal (13)C NMR assignment of the brominated carbons at positions C-2 and C-4 of the cyclohexadiene ring, two carbons whose resonances are often incorrectly assigned. Carbon 138-145 complement C4A (Rodgers blood group) Homo sapiens 102-105 22344440-4 2012 We report on the conversion of synthesis gas to C(2) through C(4) olefins with selectivity up to 60 weight percent, using catalysts that constitute iron nanoparticles (promoted by sulfur plus sodium) homogeneously dispersed on weakly interactive alpha-alumina or carbon nanofiber supports. Carbon 263-269 complement C4A (Rodgers blood group) Homo sapiens 61-65 21950073-4 2011 It this process, C-3 and C-4 atoms, which determine the "heavy" isotope composition of carbon of CO2 of the light-induced dark respiration component are split off from the hexose link of sucrose. Carbon 87-93 complement C4A (Rodgers blood group) Homo sapiens 25-28 21486309-2 2011 Plants using the C(4) pathway of carbon metabolism are marked by greater photosynthetic water and nitrogen-use efficiencies (PWUE and PNUE, respectively) than C(3) species, but it is unclear to what extent this is the case in C(3) -C(4) intermediate species. Carbon 33-39 complement C4A (Rodgers blood group) Homo sapiens 17-21 21486309-2 2011 Plants using the C(4) pathway of carbon metabolism are marked by greater photosynthetic water and nitrogen-use efficiencies (PWUE and PNUE, respectively) than C(3) species, but it is unclear to what extent this is the case in C(3) -C(4) intermediate species. Carbon 33-39 complement C4A (Rodgers blood group) Homo sapiens 232-236 21155555-4 2011 The most stable isomers of Co(1-2)C(2)H(-) clusters are linear with the C(2)H interacting with only one Co atom, while those of Co(3-5)C(2)H(-) cluster anions are quasi-planar structures with the carbon-carbon bonds bending slightly toward the Co(3-5) clusters. Carbon 196-202 complement C4A (Rodgers blood group) Homo sapiens 128-134 21464327-4 2011 We present carbon isotope data from 452 fossil teeth that record differential rates of diet change from C(3) to mixed C(3)/C(4) or C(4) diets among East African herbivore families at seven different time periods during the Late Miocene to the Pliocene (9.9-3.2 Ma). Carbon 11-17 complement C4A (Rodgers blood group) Homo sapiens 123-127 21204551-7 2011 The integrated evaluation of the dissociation energies of the C-H bonds calculated both by semiempirical and DFT methods and the differential activation energies of the process estimated by a molecular modeling approach suggested that the observed selective oxidation at the C-4 carbon has a kinetic origin. Carbon 279-285 complement C4A (Rodgers blood group) Homo sapiens 275-278 21537513-1 2011 Based on the structures of natural sphingolipids, we designed heterocyclic sphingoid base mimetics in which the conformational restriction is introduced by incorporation of a pyrrolidine moiety between the 2-amino group and the C-4 carbon atom of the sphingoid base. Carbon 232-238 complement C4A (Rodgers blood group) Homo sapiens 228-231 21155555-4 2011 The most stable isomers of Co(1-2)C(2)H(-) clusters are linear with the C(2)H interacting with only one Co atom, while those of Co(3-5)C(2)H(-) cluster anions are quasi-planar structures with the carbon-carbon bonds bending slightly toward the Co(3-5) clusters. Carbon 27-28 complement C4A (Rodgers blood group) Homo sapiens 128-134 21155555-4 2011 The most stable isomers of Co(1-2)C(2)H(-) clusters are linear with the C(2)H interacting with only one Co atom, while those of Co(3-5)C(2)H(-) cluster anions are quasi-planar structures with the carbon-carbon bonds bending slightly toward the Co(3-5) clusters. Carbon 27-28 complement C4A (Rodgers blood group) Homo sapiens 244-250 21155555-4 2011 The most stable isomers of Co(1-2)C(2)H(-) clusters are linear with the C(2)H interacting with only one Co atom, while those of Co(3-5)C(2)H(-) cluster anions are quasi-planar structures with the carbon-carbon bonds bending slightly toward the Co(3-5) clusters. Carbon 203-209 complement C4A (Rodgers blood group) Homo sapiens 128-134 21155555-5 2011 The carbon-carbon bond of C(2)H is lengthened more in Co(3-5)C(2)H(-) clusters than in Co(1-2)C(2)H(-). Carbon 4-10 complement C4A (Rodgers blood group) Homo sapiens 54-60 21155555-5 2011 The carbon-carbon bond of C(2)H is lengthened more in Co(3-5)C(2)H(-) clusters than in Co(1-2)C(2)H(-). Carbon 11-17 complement C4A (Rodgers blood group) Homo sapiens 54-60 21155555-5 2011 The carbon-carbon bond of C(2)H is lengthened more in Co(3-5)C(2)H(-) clusters than in Co(1-2)C(2)H(-). Carbon 26-27 complement C4A (Rodgers blood group) Homo sapiens 54-60