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 1.3 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
  • Primary Citation of Related Structures:  
    1QHK

  • 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, determined using NMR spectroscopy, is presented ...

    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
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (RIBONUCLEASE HI)A47Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.1.26.4
UniProt
Find proteins for Q04740 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore Q04740 
Go to UniProtKB:  Q04740
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ04740
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

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

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-08-31
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-03-02
    Changes: Database references, Derived calculations