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
  • Primary Citation of Related Structures:  
    1QM9

  • 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 comparisons previously indicated that PTB is a non-canonical RRM protein ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
POLYPYRIMIDINE TRACT-BINDING PROTEINA198Homo sapiensMutation(s): 0 
Gene Names: PTBP1PTB
UniProt & NIH Common Fund Data Resources
Find proteins for P26599 (Homo sapiens)
Explore P26599 
Go to UniProtKB:  P26599
PHAROS:  P26599
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 
  • Selection Criteria: LEAST ENERGY 
  • OLDERADO: 1QM9 Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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