1TFR

RNASE H FROM BACTERIOPHAGE T4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.06 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.205 

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This is version 1.2 of the entry. See complete history


Literature

Structure of bacteriophage T4 RNase H, a 5' to 3' RNA-DNA and DNA-DNA exonuclease with sequence similarity to the RAD2 family of eukaryotic proteins.

Mueser, T.C.Nossal, N.G.Hyde, C.C.

(1996) Cell 85: 1101-1112

  • DOI: 10.1016/s0092-8674(00)81310-0
  • Primary Citation of Related Structures:  
    1TFR

  • PubMed Abstract: 
  • Bacteriophage T4 RNase H is a 5' to 3' exonuclease that removes RNA primers from the lagging strand of the DNA replication fork and is a member of the RAD2 family of eukaryotic and prokaryotic replication and repair nucleases. The crystal structure of th ...

    Bacteriophage T4 RNase H is a 5' to 3' exonuclease that removes RNA primers from the lagging strand of the DNA replication fork and is a member of the RAD2 family of eukaryotic and prokaryotic replication and repair nucleases. The crystal structure of the full-length native form of T4 RNase H has been solved at 2.06 angstroms resolution in the presence of Mg2+ but in the absence of nucleic acids. The most conserved residues are clustered together in a large cleft with two Mg2+ in the proposed active site. This structure suggests the way in which the widely separated conserved regions in the larger nucleotide excision repair proteins, such as human XPG, could assemble into a structure like that of the smaller replication nucleases.


    Related Citations: 
    • Purification of Bacteriophage T4 DNA Replication Proteins
      Nossal, N.G., Hinton, D.M., Hobbs, L.J., Spacciapoli, P.
      (1995) Methods Enzymol 262: 560
    • Bacteriophage T4 Encodes an Rnase H which Removes RNA Primers Made by the T4 Replication System in Vitro
      Hollingsworth, H.C., Nossal, N.G.
      (1991) J Biol Chem 266: 1888
    • Organization of the Bacteriophage T4 Genome between Map Positions 150.745 And 145.824
      Hahn, S., Ruger, W.
      (1989) Nucleic Acids Res 17: 6729
    • The Region of Phage T4 Genes 34, 33 and 59: Primary Structures and Organization on the Genome
      Hahn, S., Kruse, U., Ruger, W.
      (1986) Nucleic Acids Res 14: 9311

    Organizational Affiliation

    Laboratory of Structural Biology Research, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland 20892-2755, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
T4 RNASE H A305Escherichia virus T4Mutation(s): 0 
Gene Names: rnh33.2das
EC: 3.1.26.4
Find proteins for P13319 (Enterobacteria phage T4)
Explore P13319 
Go to UniProtKB:  P13319
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download Ideal Coordinates CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.06 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.205 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.47α = 90
b = 87.58β = 90
c = 54.56γ = 90
Software Package:
Software NamePurpose
PROLSQrefinement
PROCESSdata reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-11-08
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance