2W00 image
Deposition Date 2008-08-08
Release Date 2008-12-16
Last Version Date 2024-10-16
Entry Detail
PDB ID:
2W00
Keywords:
HYDROLASE
Title:
Crystal structure of the HsdR subunit of the EcoR124I restriction enzyme in complex with ATP
Biological Source:
Source Organism:
ESCHERICHIA COLI (Taxon ID: 562)
Host Organism:
ESCHERICHIA COLI
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.60 Å
R-Value Free:
0.26
R-Value Work:
0.22
R-Value Observed:
0.22
Space Group:
P 21 21 21
2W00 validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:HSDR
Chain IDs:A, B
Chain Length:1038
Number of Molecules:2
Biological Source:ESCHERICHIA COLI
UniProt ID:P10486 Pfam ID:PF04313, PF18766, PF22679, PF12008
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
MSE A MET SELENOMETHIONINE
Ligand Molecules
ATP
MG
Primary Citation
Structure of the Motor Subunit of Type I Restriction-Modification Complex Ecor124I.
Nat.Struct.Mol.Biol. 16 94 ? (2009)
PMID: 19079266 DOI: 10.1038/NSMB.1523

Abstact

Type I restriction-modification enzymes act as conventional adenine methylases on hemimethylated DNAs, but unmethylated recognition targets induce them to translocate thousands of base pairs before cleaving distant sites nonspecifically. The first crystal structure of a type I motor subunit responsible for translocation and cleavage suggests how the pentameric translocating complex is assembled and provides a structural framework for translocation of duplex DNA by RecA-like ATPase motors.

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Protein

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Disease

Primary Citation of related structures
2W00