Structure of PDB 1sa3 Chain B Binding Site BS01

Receptor Information
>1sa3 Chain B (length=262) Species: 479 (Moraxella sp.) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MRTELLSKLYDDFGIDQLPHTQHGVTSDRLGKLYEKYILDIFKDIESLKK
YNTNAFPQEKDISSKLLKALNLDLDNIIDVSSSDTDLGRTIAGGSPKTDA
TIRFTFHNQSSRLVPLNIKHSSKKKVSIAEYDVETICTGVGISDGELKEL
IRKHQNDQSAKLFTPVQKQRLTELLEPYRERFIRWCVTLRAEKSEGNILH
PDLLIRFQVIDREYVDVTIKNIDDYVSDRIAEGSKARKPGFGTGLNWTYA
SGSKAKKMQFKG
Ligand information
Receptor-Ligand Complex Structure
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PDB1sa3 An Asymmetric Complex of Restriction Endonuclease MspI on Its Palindromic DNA Recognition Site.
Resolution1.95 Å
Binding residue
(original residue number in PDB)		K119 H120 S121 S122 K123 S127 E130 G252 S253 K254 Q259 K261
Binding residue
(residue number reindexed from 1)		K119 H120 S121 S122 K123 S127 E130 G252 S253 K254 Q259 K261
Enzymatic activity
Enzyme Commision number 3.1.21.4: type II site-specific deoxyribonuclease.
Gene Ontology
Molecular Function
GO:0003677 DNA binding
GO:0004519 endonuclease activity
GO:0009036 type II site-specific deoxyribonuclease activity
Biological Process
GO:0009307 DNA restriction-modification system

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Molecular Function
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Biological Process
External links
PDB RCSB:1sa3, PDBe:1sa3, PDBj:1sa3
PDBsum1sa3
PubMed15341737
UniProtP11405|T2M1_MORSP Type II restriction enzyme MspI (Gene Name=mspIR)

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