1RCH

SOLUTION NMR STRUCTURE OF RIBONUCLEASE HI FROM ESCHERICHIA COLI, 8 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Solution Structure of Ribonuclease Hi from Escherichia Coli

Fujiwara, M.Kato, T.Yamazaki, T.Yamasaki, K.Nagayama, K.

(2000) Biol.Pharm.Bull. 23: 1147


  • PubMed Abstract: 
  • The solution structure of ribonuclease HI (RNase HI) from Escherichia coli (E. coli), a protein of 155 residues, was determined. Three-dimensional nuclear Overhauser enhancement spectroscopy (NOESY) was used to obtain 1,424 distance constraints betwe ...

    The solution structure of ribonuclease HI (RNase HI) from Escherichia coli (E. coli), a protein of 155 residues, was determined. Three-dimensional nuclear Overhauser enhancement spectroscopy (NOESY) was used to obtain 1,424 distance constraints between individually assigned polypeptide chain hydrogen atoms. Supplemental geometric constraints of 90phi angles and 12chi1 angles, and the distance constraints of 66 hydrogen bonds were experimentally derived. Using the DADAS90 program that calculates structures in dihedral angle space, 15 structures satisfying almost all constraints were obtained. The average root mean square deviation (RMSD) from the mean structure was 0.75 A for backbone atoms. The RMSD for backbone atoms between the representative NMR structure with the smallest constraint violation and crystal structures was within 1.2 A. Although the NMR and crystal structures thus resemble one another, a significant discrepancy was observed in a region termed 'basic protrusion.' The discrepancy observed in NMR experiments is explained by fluctuation in this region.


    Related Citations: 
    • Complete Assignments of Magnetic Resonances of Ribonuclease H from Escherichia Coli by Double-and Triple-Resonance 2D and 3D NMR Spectroscopies
      Yamazaki, T.,Yoshida, M.,Nagayama, K.
      (1993) Biochemistry 32: 5656
    • A New Version of Dadas (Distance Analysis in Dihedral Angle Space) and its Performance
      Endo, S.,Wako, H.,Nagayama, K.,Go, N.
      (1991) Computational Aspects of the Study of Biological Macromolecules by Nuclear Magnetic Resonance Spectroscopy (in: Nato Asi Ser.,Ser.A, V.225) --: 233


    Organizational Affiliation

    Analytical Engineering Department. JEOL DATUM Ltd, Akishima, Tokyo, Japan. masako@jeol.co.jp




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
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 
  • Olderado: 1RCH Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-02-12
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance