ISDA

Deposition Date 1994-12-02

Release Date 1995-02-07

Last Version Date 2024-02-07

Entry Detail

PDB ID:

1HJR

Keywords:

SITE-SPECIFIC RECOMBINASE

Title:

ATOMIC STRUCTURE OF THE RUVC RESOLVASE: A HOLLIDAY JUNCTION-SPECIFIC ENDONUCLEASE FROM E. COLI

Biological Source:

Source Organism:

Escherichia coli (Taxon ID: 562)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.50 Å

R-Value Work:

0.15

R-Value Observed:

0.15

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:HOLLIDAY JUNCTION RESOLVASE (RUVC)
Gene (Uniprot):ruvC
Chain IDs:A, B, C, D
Chain Length:158
Number of Molecules:4
Biological Source:Escherichia coli

UniProt ID:P0A814 Pfam ID:PF02075 EC:3.1.21.10

Primary Citation

Atomic structure of the RuvC resolvase: a holliday junction-specific endonuclease from E. coli.

Ariyoshi, M, Vassylyev, D.G, Iwasaki, H, Nakamura, H, Shinagawa, H, Morikawa, K, Ariyoshi, M, Vassylyev, D.G, Iwasaki, H, Fujishima, A, Shinagawa, H, Morikawa, K.Show

Cell(Cambridge,Mass.) 78 1063 1072 (1994)

PMID: 7923356 DOI: 10.1016/0092-8674(94)90280-1

Abstact

The crystal structure of the RuvC protein, a Holliday junction resolvase from E. coli, has been determined at 2.5 A resolution. The enzyme forms a dimer of 19 kDa subunits related by a dyad axis. Together with results from extensive mutational analyses, the refined structure reveals that the catalytic center, comprising four acidic residues, lies at the bottom of a cleft that nicely fits a DNA duplex. The structural features of the dimer, with a 30 A spacing between the two catalytic centers, provide a substantially defined image of the Holliday junction architecture. The folding topology in the vicinity of the catalytic site exhibits a striking similarity to that of RNAase H1 from E. coli.

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Primary Citation of related structures