Structure of PDB 1igx Chain A Binding Site BS02

Receptor Information
>1igx Chain A (length=553) Species: 9940 (Ovis aries) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
PVNPCCYYPCQHQGICVRFGLDRYQCDCTRTGYSGPNCTIPEIWTWLRTT
LRPSPSFIHFLLTHGRWLWDFVNATFIRDTLMRLVLTVRSNLIPSPPTYN
IAHDYISWESFSNVSYYTRILPSVPRDCPTPMGTKGKKQLPDAEFLSRRF
LLRRKFIPDPQGTNLMFAFFAQHFTHQFFKTSGKMGPGFTKALGHGVDLG
HIYGDNLERQYQLRLFKDGKLKYQMLNGEVYPPSVEEAPVLMHYPRGIPP
QSQMAVGQEVFGLLPGLMLYATIWLREHNRVCDLLKAEHPTWGDEQLFQT
ARLILIGETIKIVIEEYVQQLSGYFLQLKFDPELLFGAQFQYRNRIAMEF
NQLYHWHPLMPDSFRVGPQDYSYEQFLFNTSMLVDYGVEALVDAFSRQPA
GRIGGGRNIDHHILHVAVDVIKESRVLRLQPFNEYRKRFGMKPYTSFQEL
TGEKEMAAELEELYGDIDALEFYPGLLLEKCHPNSIFGESMIEMGAPFSL
KGLLGNPICSPEYWKASTFGGEVGFNLVKTATLKKLVCLNTKTCPYVSFH
VPD
Ligand information
Ligand IDCOH
InChIInChI=1S/C34H34N4O4.Co/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-;
InChIKeyAQTFKGDWFRRIHR-RGGAHWMASA-L
SMILES
SoftwareSMILES
OpenEye OEToolkits 2.0.7Cc1c2n3c(c1CCC(=O)O)C=C4C(=C(C5=[N]4[Co]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[Co][N@@]5C(=CC1=N2)C(=C(C=C)C5=CC6=NC(=Cc4c(C)c3CCC(O)=O)C(=C6C)C=C)C
CACTVS 3.385CC1=C(CCC(O)=O)C2=Cc3n4[Co][N]5C(=CC1=N2)C(=C(C=C)C5=CC6=NC(=Cc4c(C)c3CCC(O)=O)C(=C6C)C=C)C
FormulaC34 H32 Co N4 O4
NamePROTOPORPHYRIN IX CONTAINING CO
ChEMBL
DrugBank
ZINC
PDB chain1igx Chain A Residue 601 [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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PDB1igx Structure of eicosapentaenoic and linoleic acids in the cyclooxygenase site of prostaglandin endoperoxide H synthase-1.
Resolution3.1 Å
Binding residue
(original residue number in PDB)		Q203 F210 T212 L295 H386 W387 H388 M391 I444 V447 D450
Binding residue
(residue number reindexed from 1)		Q172 F179 T181 L264 H355 W356 H357 M360 I413 V416 D419
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) Q203 H207 L384 Y385 H388 G526 S530
Catalytic site (residue number reindexed from 1) Q172 H176 L353 Y354 H357 G495 S499
Enzyme Commision number 1.14.99.1: prostaglandin-endoperoxide synthase.
Gene Ontology
Molecular Function
GO:0004601 peroxidase activity
GO:0004666 prostaglandin-endoperoxide synthase activity
GO:0016702 oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of two atoms of oxygen
GO:0020037 heme binding
GO:0042803 protein homodimerization activity
GO:0046872 metal ion binding
GO:0051213 dioxygenase activity
Biological Process
GO:0001516 prostaglandin biosynthetic process
GO:0006979 response to oxidative stress
GO:0008217 regulation of blood pressure
GO:0019371 cyclooxygenase pathway
GO:0098869 cellular oxidant detoxification
Cellular Component
GO:0005737 cytoplasm
GO:0005783 endoplasmic reticulum
GO:0005789 endoplasmic reticulum membrane
GO:0016020 membrane
GO:0043005 neuron projection
GO:0043231 intracellular membrane-bounded organelle

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Molecular Function
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Biological Process
View graph for
Cellular Component
External links
PDB RCSB:1igx, PDBe:1igx, PDBj:1igx
PDBsum1igx
PubMed11477109
UniProtP05979|PGH1_SHEEP Prostaglandin G/H synthase 1 (Gene Name=PTGS1)

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