1QHK

N-TERMINAL DOMAIN OF SACCHAROMYCES CEREVISIAE RNASE HI REVEALS A FOLD WITH A RESEMBLANCE TO THE N-TERMINAL DOMAIN OF RIBOSOMAL PROTEIN L9


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

NMR structure of the N-terminal domain of Saccharomyces cerevisiae RNase HI reveals a fold with a strong resemblance to the N-terminal domain of ribosomal protein L9.

Evans, S.P.Bycroft, M.

(1999) J.Mol.Biol. 291: 661-669

  • DOI: 10.1006/jmbi.1999.2971

  • PubMed Abstract: 
  • In addition to the conserved and well-defined RNase H domain, eukaryotic RNases HI possess either one or two copies of a small N-terminal domain. The solution structure of one of the N-terminal domains from Saccharomyces cerevisiae RNase HI, determin ...

    In addition to the conserved and well-defined RNase H domain, eukaryotic RNases HI possess either one or two copies of a small N-terminal domain. The solution structure of one of the N-terminal domains from Saccharomyces cerevisiae RNase HI, determined using NMR spectroscopy, is presented. The 46 residue motif comprises a three-stranded antiparallel beta-sheet and two short alpha-helices which pack onto opposite faces of the beta-sheet. Conserved residues involved in packing the alpha-helices onto the beta-sheet form the hydrophobic core of the domain. Three highly conserved and solvent exposed residues are implicated in RNA binding, W22, K38 and K39. The beta-beta-alpha-beta-alpha topology of the domain differs from the structures of known RNA binding domains such as the double-stranded RNA binding domain (dsRBD), the hnRNP K homology (KH) domain and the RNP motif. However, structural similarities exist between this domain and the N-terminal domain of ribosomal protein L9 which binds to 23 S ribosomal RNA.


    Related Citations: 
    • Eukaryotic RNase H Shares a Conserved Domain with Caulimovirus Proteins that Facilitate Translation of Polycistronic RNA
      Mushegian, A.R.,Edskes, H.K.,Koonin, E.V.
      (1994) Nucleic Acids Res. 22: 4163


    Organizational Affiliation

    Cambridge Centre for Protein Engineering, Department of Chemistry, Cambridge University, Lensfield Road, Cambridge, CB2 1EW, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (RIBONUCLEASE HI)
A
47Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RNH1
EC: 3.1.26.4
Find proteins for Q04740 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: RNH1
Go to UniProtKB:  Q04740
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 
  • Olderado: 1QHK Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-08-31
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance