Structure of PDB 3v21 Chain B

Receptor sequence
>3v21B (length=289) Species: 1422 (Geobacillus stearothermophilus) [Search protein sequence]
NLTNSNCVEEYKENGKTKIRIKPFNALIELYHHQTPTGSIKENLDKLENY
VKDVVKAKGLAIPTSGAFSNTRGTWFEVMIAIQSWNYRVKRELNDYLIIK
MPNVKTFDFRKIFDNETREKLHQLEKSLLTHKQQVRLITSNPDLLIIRQK
DLIKSEYNLPINKLTHENIDVALTLFKDIEGKCKWDSLVAGVGLKTSLRP
DRRLQLVHEGNILKSLFAHLKMAYWNPKAEFKYYGASSEPVSKADDDALQ
TAATHTIVNVNSTPERAVDDIFSLTSFEDIDKMLDQIIK
3D structure
PDB3v21 Structural mechanisms of the degenerate sequence recognition by Bse634I restriction endonuclease.
ChainB
Resolution2.7 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) E77 D143 K195 E209
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 R23 I24 K25 T67 G69 A70 N73 T109 P203 D204 R206 A247 R20 I21 K22 T64 G66 A67 N70 T106 P200 D201 R203 A244
BS02 dna B S68 S72 N73 R75 G76 N106 V107 S143 D146 K198 T199 S200 R202 R205 S65 S69 N70 R72 G73 N103 V104 S140 D143 K195 T196 S197 R199 R202
Gene Ontology
Molecular Function
GO:0004519 endonuclease activity
GO:0046872 metal ion binding

View graph for
Molecular Function
External links
PDB RCSB:3v21, PDBe:3v21, PDBj:3v21
PDBsum3v21
PubMed22495930
UniProtQ8RT53

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