Structure of PDB 2que Chain A Binding Site BS01

Receptor Information
>2que Chain A (length=121) Species: 97228 (Daboia russelii pulchella) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
SLLEFGKMILEETGKLAIPSYSSYGCYCGWGGKGTPKDATDRCCFVHDCC
YGNLPDCNPKSDRYKYKRVNGAIVCEKGTSCENRICECDKAAAICFRQNL
NTYSKKYMLYPDFLCKGELKC
Ligand information
Ligand IDAJM
InChIInChI=1S/C18H22N2O2/c1-19-11-5-3-2-4-10(11)18-8-13-15(17(18)22)9-6-12(16(18)19)20(13)14(21)7-9/h2-5,9,12-17,21-22H,6-8H2,1H3/t9-,12-,13-,14-,15-,16-,17+,18+/m0/s1
InChIKeyCFEPCEVMXPTZPJ-OGDRVKPDSA-N
SMILES
SoftwareSMILES
CACTVS 3.341CN1[C@H]2[C@@H]3C[C@H]4C[C@H](O)N3[C@H]5C[C@@]2([C@H](O)[C@@H]45)c6ccccc16
CACTVS 3.341CN1[CH]2[CH]3C[CH]4C[CH](O)N3[CH]5C[C]2([CH](O)[CH]45)c6ccccc16
OpenEye OEToolkits 1.5.0C[N@]1c2ccccc2[C@@]34[C@@H]1[C@@H]5C[C@H]6C[C@@H]([N@@]5[C@@H](C3)[C@H]6[C@H]4O)O
ACDLabs 10.04OC2C14c6ccccc6N(C1C5N3C(O)CC(C2C3C4)C5)C
OpenEye OEToolkits 1.5.0CN1c2ccccc2C34C1C5CC6CC(N5C(C3)C6C4O)O
FormulaC18 H22 N2 O2
NameAJMALINE
ChEMBL
DrugBank
ZINCZINC000033821197
PDB chain2que 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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PDB2que Saturation of substrate-binding site using two natural ligands: Crystal structure of a ternary complex of phospholipase A2 with anisic acid and ajmaline at 2.25 A resolution
Resolution2.25 Å
Binding residue
(original residue number in PDB)		D49 Y52 G53 P56
Binding residue
(residue number reindexed from 1)		D48 Y51 G52 P55
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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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:2que, PDBe:2que, PDBj:2que
PDBsum2que
PubMed
UniProtP59071|PA2B8_DABRR Basic phospholipase A2 VRV-PL-VIIIa

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