Structure of PDB 3v20 Chain B Binding Site BS02

Receptor Information
>3v20 Chain B (length=288) Species: 1422 (Geobacillus stearothermophilus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
LTNSNCVEEYKENGKTKIRIKPFNALIELYHHQTPTGSIKENLDKLENYV
KDVVKAKGLAIPTSGAFSNTRGTWFEVMIAIQSWNYRVKRELNDYLIIKM
PNVKTFDFRKIFDNETREKLHQLEKSLLTHKQQVRLITSNPDLLIIRQKD
LIKSEYNLPINKLTHENIDVALTLFKDIEGKCKWDSLVAGVGLKTSLRPD
RRLQLVHEGNILKSLFAHLKMAYWNPKAEFKYYGASSEPVSKADDDALQT
AATHTIVNVNSTPERAVDDIFSLTSFEDIDKMLDQIIK
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 chain3v20 Chain B Residue 301 [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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PDB3v20 Structural mechanisms of the degenerate sequence recognition by Bse634I restriction endonuclease.
Resolution2.35 Å
Binding residue
(original residue number in PDB)		D146 L197
Binding residue
(residue number reindexed from 1)		D142 L193
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) E80 D146 K198 E212
Catalytic site (residue number reindexed from 1) E76 D142 K194 E208
Enzyme Commision number 3.1.21.4: type II site-specific deoxyribonuclease.
Gene Ontology
Molecular Function
GO:0004519 endonuclease activity
GO:0046872 metal ion binding

View graph for
Molecular Function
External links
PDB RCSB:3v20, PDBe:3v20, PDBj:3v20
PDBsum3v20
PubMed22495930
UniProtQ8RT53

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