1QM9

NMR, REPRESENTATIVE STRUCTURE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 
  • Selection Criteria: LEAST ENERGY 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of Tandem RNA Recognition Motifs from Polypyrimidine Tract Binding Protein Reveals Novel Features of the Rrm Fold

Conte, M.R.Grune, T.Kelly, G.Ladas, A.Matthews, S.Curry, S.

(2000) Embo J. 19: 3132

  • DOI: 10.1093/emboj/19.12.3132

  • PubMed Abstract: 
  • Polypyrimidine tract binding protein (PTB), an RNA binding protein containing four RNA recognition motifs (RRMs), is involved in both pre-mRNA splicing and translation initiation directed by picornaviral internal ribosome entry sites. Sequence compar ...

    Polypyrimidine tract binding protein (PTB), an RNA binding protein containing four RNA recognition motifs (RRMs), is involved in both pre-mRNA splicing and translation initiation directed by picornaviral internal ribosome entry sites. Sequence comparisons previously indicated that PTB is a non-canonical RRM protein. The solution structure of a PTB fragment containing RRMs 3 and 4 shows that the protein consists of two domains connected by a long, flexible linker. The two domains tumble independently in solution, having no fixed relative orientation. In addition to the betaalphabetabetaalphabeta topology, which is characteristic of RRM domains, the C-terminal extension of PTB RRM-3 incorporates an unanticipated fifth beta-strand, which extends the RNA binding surface. The long, disordered polypeptide connecting beta4 and beta5 in RRM-3 is poised above the RNA binding surface and is likely to contribute to RNA recognition. Mutational analyses show that both RRM-3 and RRM-4 contribute to RNA binding specificity and that, despite its unusual sequence, PTB binds RNA in a manner akin to that of other RRM proteins.


    Related Citations: 
    • Resonance Assignment and Topology of a 22kDa C-Terminal Fragment of the Polypyriine Tract Binding Protein Containing Two RNA Binding Domain
      Conte, M.R.,Grune, T.,Curry, S.,Matthews, S.
      (1999) J.Biomol.NMR 14: 383


    Organizational Affiliation

    Department of Biochemistry, Imperial College of Science, Technology and Medicine, Exhibition Road, London, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
POLYPYRIMIDINE TRACT-BINDING PROTEIN
A
198Homo sapiensMutation(s): 0 
Gene Names: PTBP1 (PTB)
Find proteins for P26599 (Homo sapiens)
Go to Gene View: PTBP1
Go to UniProtKB:  P26599
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 
  • Selection Criteria: LEAST ENERGY 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-07-03
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance