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PDBsum entry 3mq6

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protein dna_rna metals Protein-protein interface(s) links
Hydrolase/DNA PDB id
3mq6
Jmol
Contents
Protein chains
(+ 2 more) 332 a.a.
DNA/RNA
Metals
_CA ×22
Waters ×1335
PDB id:
3mq6
Name: Hydrolase/DNA
Title: Domain swapped sgrai with DNA and calcium bound
Structure: Sgrair restriction enzyme. Chain: a, b, c, d, e, f, g, h. Engineered: yes. DNA (5'- d( Ap Ap Gp Tp Cp Cp Ap Cp Cp Gp Gp Tp Gp Gp Ap Cp T)-3'). Chain: l, k, n, m, p, o, r, q. Engineered: yes
Source: Streptomyces griseus. Organism_taxid: 1911. Gene: sgrair. Expressed in: escherichia coli. Expression_system_taxid: 562. Synthetic: yes. Other_details: includes the sgrai recognition sequence
Resolution:
2.00Å     R-factor:   0.212     R-free:   0.261
Authors: P.W.Dunten,N.C.Horton,E.J.Little
Date:
27-Apr-10     Release date:   10-Nov-10    
PROCHECK
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 Headers
 References

Protein chains
Pfam   ArchSchema ?
Q9F6L0  (Q9F6L0_STRGR) -  SgraIR restriction enzyme
Seq:
Struc:
339 a.a.
332 a.a.*
Key:    PfamA domain  Secondary structure  CATH domain
* PDB and UniProt seqs differ at 1 residue position (black cross)

 Gene Ontology (GO) functional annotation 
  GO annot!
  Biological process     DNA restriction-modification system   2 terms 
  Biochemical function     DNA binding     3 terms