1RNH

STRUCTURE OF RIBONUCLEASE H PHASED AT 2 ANGSTROMS RESOLUTION BY MAD ANALYSIS OF THE SELENOMETHIONYL PROTEIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of ribonuclease H phased at 2 A resolution by MAD analysis of the selenomethionyl protein.

Yang, W.Hendrickson, W.A.Crouch, R.J.Satow, Y.

(1990) Science 249: 1398-1405


  • PubMed Abstract: 
  • Ribonuclease H digests the RNA strand of duplex RNA.DNA hybrids into oligonucleotides. This activity is indispensable for retroviral infection and is involved in bacterial replication. The ribonuclease H from Escherichia coli is homologous with the r ...

    Ribonuclease H digests the RNA strand of duplex RNA.DNA hybrids into oligonucleotides. This activity is indispensable for retroviral infection and is involved in bacterial replication. The ribonuclease H from Escherichia coli is homologous with the retroviral proteins. The crystal structure of the E. coli enzyme reveals a distinctive alpha-beta tertiary fold. Analysis of the molecular model implicates a carboxyl triad in the catalytic mechanism and suggests a likely mode for the binding of RNA.DNA substrates. The structure was determined by the method of multiwavelength anomalous diffraction (MAD) with the use of synchrotron data from a crystal of the recombinant selenomethionyl protein.


    Related Citations: 
    • Expression, Purification, and Crystallization of Natural and Selenomethionyl Recombinant Ribonuclease H from Escherichia Coli
      Yang, W.,Hendrickson, W.A.,Kalman, E.T.,Crouch, R.J.
      (1990) J.Biol.Chem. 265: 13553


    Organizational Affiliation

    Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY 10032.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RIBONUCLEASE HI
A
155Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rnhA (dasF, herA, rnh, sdrA)
EC: 3.1.26.4
Find proteins for P0A7Y4 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7Y4
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 41.790α = 90.00
b = 86.340β = 90.00
c = 36.310γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1991-10-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance