Structure of PDB 3nos Chain B Binding Site BS04

Receptor Information
>3nos Chain B (length=400) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
KFPRVKNWEVGSITYDTLSAQAQQDGPCTPRRCLGSLVFPRQLLSQARDF
INQYYSSIKRSGSQAHEQRLQEVEAEVAATGTYQLRESELVFGAKQAWRN
APRCVGRIQWGKLQVFDARDCRSAQEMFTYICNHIKYATNRGNLRSAITV
FPQRCPGRGDFRIWNSQLVRYAGYRQQDGSVRGDPANVEITELCIQHGWT
PGNGRFDVLPLLLQAPDEPPELFLLPPELVLEVPLEHPTLEWFAALGLRW
YALPAVSNMLLEIGGLEFPAAPFSGWYMSTEIGTRNLCDPHRYNILEDVA
VCMDLDTRTTSSLWKDKAAVEINVAVLHSYQLAKVTIVDHHAATASFMKH
LENEQKARGGCPADWAWIVPPISGSLTPVFHQEMVNYFLSPAFRYQPDPW
Ligand information
Ligand IDHEM
InChIInChI=1S/C34H34N4O4.Fe/c1-7-21-17(3)25-13-26-19(5)23(9-11-33(39)40)31(37-26)16-32-24(10-12-34(41)42)20(6)28(38-32)15-30-22(8-2)18(4)27(36-30)14-29(21)35-25;/h7-8,13-16H,1-2,9-12H2,3-6H3,(H4,35,36,37,38,39,40,41,42);/q;+2/p-2/b25-13-,26-13-,27-14-,28-15-,29-14-,30-15-,31-16-,32-16-;
InChIKeyKABFMIBPWCXCRK-RGGAHWMASA-L
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.7.6Cc1c2n3c(c1CCC(=O)O)C=C4C(=C(C5=[N]4[Fe]36[N]7=C(C=C8N6C(=C5)C(=C8C)C=C)C(=C(C7=C2)C)C=C)C)CCC(=O)O
CACTVS 3.385CC1=C(CCC(O)=O)C2=Cc3n4[Fe]5|6|N2=C1C=c7n5c(=CC8=N|6C(=Cc4c(C)c3CCC(O)=O)C(=C8C=C)C)c(C)c7C=C
ACDLabs 12.01C=1c3c(c(c4C=C5C(=C(C=6C=C7C(=C(C8=CC=2C(=C(C=1N=2[Fe](n34)(N5=6)N78)CCC(=O)O)C)\C=C)C)\C=C)C)C)CCC(=O)O
FormulaC34 H32 Fe N4 O4
NamePROTOPORPHYRIN IX CONTAINING FE;
HEME
ChEMBL
DrugBankDB18267
ZINC
PDB chain3nos Chain B Residue 1010 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB3nos Structural characterization of nitric oxide synthase isoforms reveals striking active-site conservation.
Resolution2.4 Å
Binding residue
(original residue number in PDB)		W178 R183 C184 L193 M339 F353 W356 E361 W447 F473 Y475
Binding residue
(residue number reindexed from 1)		W98 R103 C104 L113 M259 F273 W276 E281 W367 F393 Y395
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) C184 R187 W356 E361
Catalytic site (residue number reindexed from 1) C104 R107 W276 E281
Enzyme Commision number 1.14.13.39: nitric-oxide synthase (NADPH).
Gene Ontology
Molecular Function
GO:0004517 nitric-oxide synthase activity
Biological Process
GO:0006809 nitric oxide biosynthetic process

View graph for
Molecular Function
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Biological Process
External links
PDB RCSB:3nos, PDBe:3nos, PDBj:3nos
PDBsum3nos
PubMed10074942
UniProtP29474|NOS3_HUMAN Nitric oxide synthase 3 (Gene Name=NOS3)

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