Structure of PDB 3h1x Chain A Binding Site BS01

Receptor Information
>3h1x Chain A (length=121) Species: 31159 (Daboia russelii russelii) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
SLLEFGKMILEETGKLAIPSYSSYGCYCGWGGKGTPKDATDRCCFVHDCC
YGNLPDCNPKSDRYKYKRVNGAIVCEKGTSCENRICECDKAAAICFRQNL
NTYSKKYMLYPDFLCKGELKC
Ligand information
Ligand IDIMN
InChIInChI=1S/C19H16ClNO4/c1-11-15(10-18(22)23)16-9-14(25-2)7-8-17(16)21(11)19(24)12-3-5-13(20)6-4-12/h3-9H,10H2,1-2H3,(H,22,23)
InChIKeyCGIGDMFJXJATDK-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341COc1ccc2n(c(C)c(CC(O)=O)c2c1)C(=O)c3ccc(Cl)cc3
ACDLabs 10.04Clc1ccc(cc1)C(=O)n3c2ccc(OC)cc2c(c3C)CC(=O)O
OpenEye OEToolkits 1.5.0Cc1c(c2cc(ccc2n1C(=O)c3ccc(cc3)Cl)OC)CC(=O)O
FormulaC19 H16 Cl N O4
NameINDOMETHACIN
ChEMBLCHEMBL6
DrugBankDB00328
ZINCZINC000000601283
PDB chain3h1x Chain A Residue 301 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB3h1x Simultaneous inhibition of anti-coagulation and inflammation: crystal structure of phospholipase A2 complexed with indomethacin at 1.4 A resolution reveals the presence of the new common ligand-binding site
Resolution1.4 Å
Binding residue
(original residue number in PDB)		D49 Y52 P56 K69
Binding residue
(residue number reindexed from 1)		D48 Y51 P55 K60
Annotation score1
Binding affinityMOAD: Kd=0.000000064M
PDBbind-CN: -logKd/Ki=5.89,Kd=1.3uM
Enzymatic activity
Catalytic site (original residue number in PDB) Y28 G30 G32 H48 D49 Y52 Y73 D99
Catalytic site (residue number reindexed from 1) Y27 G29 G31 H47 D48 Y51 Y64 D89
Enzyme Commision number 3.1.1.4: phospholipase A2.
Gene Ontology
Molecular Function
GO:0004623 phospholipase A2 activity
GO:0005509 calcium ion binding
GO:0005543 phospholipid binding
GO:0016787 hydrolase activity
GO:0046872 metal ion binding
GO:0047498 calcium-dependent phospholipase A2 activity
GO:0090729 toxin activity
Biological Process
GO:0006644 phospholipid metabolic process
GO:0016042 lipid catabolic process
GO:0035821 modulation of process of another organism
GO:0042130 negative regulation of T cell proliferation
GO:0050482 arachidonate secretion
Cellular Component
GO:0005576 extracellular region

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Biological Process
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Cellular Component
External links
PDB RCSB:3h1x, PDBe:3h1x, PDBj:3h1x
PDBsum3h1x
PubMed19462410
UniProtP59071|PA2B8_DABRR Basic phospholipase A2 VRV-PL-VIIIa

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