Structure of PDB 1tgm Chain A Binding Site BS02

Receptor Information
>1tgm 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]
SLLEFGKMILEETGKLAIPSYSSYGCYCGWGGSGTPKDATDRCCFVHDCC
YGNLPDCNPKSDRYKYKRVNGAIVCEKGTSCENRICECDKAAAICFRQNL
NTYSKKYMLYPDFLCKGELKC
Ligand information
Ligand IDCA
InChIInChI=1S/Ca/q+2
InChIKeyBHPQYMZQTOCNFJ-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341[Ca++]
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Ca+2]
FormulaCa
NameCALCIUM ION
ChEMBL
DrugBankDB14577
ZINC
PDB chain1tgm Chain A Residue 201 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1tgm Crystal structure of a complex formed between group II phospholipase A2 and aspirin at 1.86 A resolution
Resolution1.86 Å
Binding residue
(original residue number in PDB)		Y28 G30 G32 D49
Binding residue
(residue number reindexed from 1)		Y27 G29 G31 D48
Annotation score1
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:1tgm, PDBe:1tgm, PDBj:1tgm
PDBsum1tgm
PubMed
UniProtP59071|PA2B8_DABRR Basic phospholipase A2 VRV-PL-VIIIa

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