2KXH

Solution structure of the first two RRM domains of FIR in the complex with FBP Nbox peptide


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Molecular basis of FIR-mediated c-myc transcriptional control.

Cukier, C.D.Hollingworth, D.Martin, S.R.Kelly, G.Diaz-Moreno, I.Ramos, A.

(2010) Nat Struct Mol Biol 17: 1058-1064

  • DOI: 10.1038/nsmb.1883
  • Primary Citation of Related Structures:  
    2KXF, 2KXH

  • PubMed Abstract: 
  • The far upstream element (FUSE) regulatory system promotes a peak in the concentration of c-Myc during cell cycle. First, the FBP transcriptional activator binds to the FUSE DNA element upstream of the c-myc promoter. Then, FBP recruits its specific ...

    The far upstream element (FUSE) regulatory system promotes a peak in the concentration of c-Myc during cell cycle. First, the FBP transcriptional activator binds to the FUSE DNA element upstream of the c-myc promoter. Then, FBP recruits its specific repressor (FIR), which acts as an on/off transcriptional switch. Here we describe the molecular basis of FIR recruitment, showing that the tandem RNA recognition motifs of FIR provide a platform for independent FUSE DNA and FBP protein binding and explaining the structural basis of the reversibility of the FBP-FIR interaction. We also show that the physical coupling between FBP and FIR is modulated by a flexible linker positioned sequentially to the recruiting element. Our data explain how the FUSE system precisely regulates c-myc transcription and suggest that a small change in FBP-FIR affinity leads to a substantial effect on c-Myc concentration.


    Organizational Affiliation

    Molecular Structure Division, Medical Research Council National Institute for Medical Research, London, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Poly(U)-binding-splicing factor PUF60A199Homo sapiensMutation(s): 0 
Gene Names: PUF60FIRROBPISIAHBP1
Find proteins for Q9UHX1 (Homo sapiens)
Explore Q9UHX1 
Go to UniProtKB:  Q9UHX1
NIH Common Fund Data Resources
PHAROS  Q9UHX1
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
peptide of Far upstream element-binding protein 1B31Homo sapiensMutation(s): 0 
Gene Names: FUBP1
Find proteins for Q96AE4 (Homo sapiens)
Explore Q96AE4 
Go to UniProtKB:  Q96AE4
NIH Common Fund Data Resources
PHAROS  Q96AE4
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: structures with the lowest energy 
  • OLDERADO: 2KXH Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-08-18
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2019-12-18
    Changes: Data collection, Database references