Structure of PDB 3v20 Chain B

Receptor sequence
>3v20B (length=288) Species: 1422 (Geobacillus stearothermophilus) [Search protein sequence]
LTNSNCVEEYKENGKTKIRIKPFNALIELYHHQTPTGSIKENLDKLENYV
KDVVKAKGLAIPTSGAFSNTRGTWFEVMIAIQSWNYRVKRELNDYLIIKM
PNVKTFDFRKIFDNETREKLHQLEKSLLTHKQQVRLITSNPDLLIIRQKD
LIKSEYNLPINKLTHENIDVALTLFKDIEGKCKWDSLVAGVGLKTSLRPD
RRLQLVHEGNILKSLFAHLKMAYWNPKAEFKYYGASSEPVSKADDDALQT
AATHTIVNVNSTPERAVDDIFSLTSFEDIDKMLDQIIK
3D structure
PDB3v20 Structural mechanisms of the degenerate sequence recognition by Bse634I restriction endonuclease.
ChainB
Resolution2.35 Å
3D
structure
Catalytic site residues are labeled in the structure
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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.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 dna B S72 N73 R75 N106 V107 K108 S143 D146 K198 T199 S200 R202 R205 S68 N69 R71 N102 V103 K104 S139 D142 K194 T195 S196 R198 R201
BS02 CA B D146 L197 D142 L193
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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