PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23586781-8 2013 Crystal structures of our NHA analogues bound to nNOS have been determined, revealing the presence of an active site water molecule only in the presence of singly methylated analogues. Water 117-122 nitric oxide synthase 1 Homo sapiens 49-53 18052254-1 2008 Fully coupled nitric oxide synthase (NOS) catalyzes formation of nitric oxide (NO), l-citrulline, NADP+, and water from l-arginine, NADPH, and oxygen. Water 109-114 nitric oxide synthase 1 Homo sapiens 14-35 17425297-3 2007 X-ray crystal structures of complexes of nNOS with two nNOS-selective inhibitors, (4S)-N-{4-amino-5-[(2-aminoethylamino]pentyl}-N"-nitroguanidine (1) and 4-N-(Nomega-nitro-l-argininyl)-trans-4-amino-l-proline amide (2), led to the discovery of a conserved structural water molecule that was hydrogen bonded between the two heme propionates and the inhibitors (Figure 2). Water 267-272 nitric oxide synthase 1 Homo sapiens 41-45 17425297-6 2007 X-ray crystal structures of nNOS with inhibitors 3 and 5 bound verified that the N-hydroxyl group had, indeed, displaced the structural water molecule and provided a direct interaction with the heme propionate moiety (Figures 5 and 6). Water 136-141 nitric oxide synthase 1 Homo sapiens 28-32 32302123-5 2020 X-ray crystallography indicates that the amino groups of some compounds occupy a water-filled pocket surrounding an nNOS-specific aspartate residue (absent in eNOS). Water 81-86 nitric oxide synthase 1 Homo sapiens 116-120 16804678-5 2006 The detailed hydrogen-bonding geometries depicted in the active site of nNOS structures indicate that it is the ordered active-site water molecule rather than the substrate itself that would most likely serve as a direct proton donor to the diatomic ligands (CO, NO, as well as O(2)) bound to the heme. Water 132-137 nitric oxide synthase 1 Homo sapiens 72-76 16814584-1 2006 Neuronal NOS (nNOS) is a constitutively expressed enzyme that catalyzes the oxidation of L-arginine and water to L-citrulline and the gas nitric oxide (NO). Water 104-109 nitric oxide synthase 1 Homo sapiens 14-18 10090758-8 1999 1,2H ENDOR of NOHA bound to holo-nNOS in H2O and D2O discloses the presence of a single resolved exchangeable proton (H1) 4.8 A from Fe and very near the heme normal. Water 41-44 nitric oxide synthase 1 Homo sapiens 33-37 26035438-10 2015 The nearby exchangeable proton in both the no-substrate and Arg-containing nNOS samples is located outside the H-bonding range and, on the basis of the obtained structural constraints, can belong to the active site water (or OH). Water 215-220 nitric oxide synthase 1 Homo sapiens 75-79