Structure of PDB 1s2n Chain A Binding Site BS01

Receptor Information
>1s2n Chain A (length=281) Species: 210249 (Vibrio sp. PA-44) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
QSNAIWGLDRIDQRNLPLDRNYNANFDGFGVTAYVIDTGVNNNHEEFGGR
SVSGYDFVDNDADSSDCNGHGTHVAGTIGGSQYGVAKNVNIVGVRVLSCS
GSGTTSGVISGVDWVAQNASGPSVANMSLGGGQSTALDSAVQGAIQSGVS
FMLAAGNSNADACNTSPARVPSGVTVGSTTSSDSRSSFSNWGSCVDLFAP
GSQIKSAWYDGGYKTISGTSMATPHVAGVAALYLQENNGLTPLQLTGLLN
SRASENKVSDTRGTTNKLLYSLADSGCEPDC
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 chain1s2n Chain A Residue 1290 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1s2n Crystal structure of a subtilisin-like serine proteinase from a psychrotrophic Vibrio species reveals structural aspects of cold adaptation.
Resolution2.44 Å
Binding residue
(original residue number in PDB)		P171 G173 D196
Binding residue
(residue number reindexed from 1)		P171 G173 D196
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) D37 H70 N157 S220
Catalytic site (residue number reindexed from 1) D37 H70 N157 S220
Enzyme Commision number 3.4.21.-
Gene Ontology
Molecular Function
GO:0004252 serine-type endopeptidase activity
GO:0008236 serine-type peptidase activity
Biological Process
GO:0006508 proteolysis

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Molecular Function
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Biological Process
External links
PDB RCSB:1s2n, PDBe:1s2n, PDBj:1s2n
PDBsum1s2n
PubMed15670163
UniProtQ8GB52

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