2MZS

NMR structure of the RRM2 domain of Hrb1


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Gbp2 interacts with THO/TREX through a novel type of RRM domain.

Martinez-Lumbreras, S.Taverniti, V.Zorrilla, S.Seraphin, B.Perez-Canadillas, J.M.

(2016) Nucleic Acids Res. 44: 437-448

  • DOI: 10.1093/nar/gkv1303
  • Primary Citation of Related Structures:  2MZQ, 2MZR, 2MZT

  • PubMed Abstract: 
  • Metazoan SR and SR-like proteins are important regulatory factors in RNA splicing, export, translation and RNA decay. We determined the NMR structures and nucleic acid interaction modes of Gbp2 and Hrb1, two paralogous budding yeast proteins with sim ...

    Metazoan SR and SR-like proteins are important regulatory factors in RNA splicing, export, translation and RNA decay. We determined the NMR structures and nucleic acid interaction modes of Gbp2 and Hrb1, two paralogous budding yeast proteins with similarities to mammalian SR proteins. Gbp2 RRM1 and RRM2 recognise preferentially RNAs containing the core motif GGUG. Sequence selectivity resides in a non-canonical interface in RRM2 that is highly related to the SRSF1 pseudoRRM. The atypical Gbp2/Hrb1 C-terminal RRM domains (RRM3) do not interact with RNA/DNA, likely because of their novel N-terminal extensions that block the canonical RNA binding interface. Instead, we discovered that RRM3 is crucial for interaction with the THO/TREX complex and identified key residues essential for this interaction. Moreover, Gbp2 interacts genetically with Tho2 as the double deletion shows a synthetic phenotype and preventing Gbp2 interaction with the THO/TREX complex partly supresses gene expression defect associated with inactivation of the latter complex. These findings provide structural and functional insights into the contribution of SR-like proteins in the post-transcriptional control of gene expression.


    Organizational Affiliation

    Department of Biological Physical Chemistry, Instituto de Química-Física 'Rocasolano', CSIC, Serrano-119, 28006 Madrid, Spain.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein HRB1
A
99Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: HRB1 (TOM34)
Find proteins for P38922 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P38922
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-12-02
    Type: Initial release
  • Version 1.1: 2015-12-09
    Type: Database references
  • Version 1.2: 2016-01-27
    Type: Database references