5J3X

Structure of c-CBL Y371F

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.82 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 

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Literature

Casitas B-lineage lymphoma linker helix mutations found in myeloproliferative neoplasms affect conformation.

Buetow, L., Tria, G., Ahmed, S.F., Hock, A., Dou, H., Sibbet, G.J., Svergun, D.I., Huang, D.T.

(2016) BMC Biol 14: 76-76

  • DOI: 10.1186/s12915-016-0298-6
  • Primary Citation of Related Structures:  
    5J3X

  • PubMed Abstract: 

    • Casitas B-lineage lymphoma (Cbl or c-Cbl) is a RING ubiquitin ligase that negatively regulates protein tyrosine kinase (PTK) signalling. Phosphorylation of a conserved residue (Tyr371) on the linker helix region (LHR) between the substrate-binding and RI ...

    Casitas B-lineage lymphoma (Cbl or c-Cbl) is a RING ubiquitin ligase that negatively regulates protein tyrosine kinase (PTK) signalling. Phosphorylation of a conserved residue (Tyr371) on the linker helix region (LHR) between the substrate-binding and RING domains is required to ubiquitinate PTKs, thereby flagging them for degradation. This conserved Tyr is a mutational hotspot in myeloproliferative neoplasms. Previous studies have revealed that select point mutations in Tyr371 can potentiate transformation in cells and mice but not all possible mutations do so. To trigger oncogenic potential, Cbl Tyr371 mutants must perturb the LHR-substrate-binding domain interaction and eliminate PTK ubiquitination. Although structures of native and pTyr371-Cbl are available, they do not reveal how Tyr371 mutations affect Cbl's conformation. Here, we investigate how Tyr371 mutations affect Cbl's conformation in solution and how this relates to Cbl's ability to potentiate transformation in cells.

    Organizational Affiliation: 

    Cancer Research UK Beatson Institute, Garscube Estate, Switchback Road, Glasgow, G61 1BD, UK. d.huang@beatson.gla.ac.uk.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
E3 ubiquitin-protein ligase CBL A, B, C, D, E, F391Homo sapiensMutation(s): 1 
Gene Names: CBL, CBL2, RNF55
EC: 6.3.2 (PDB Primary Data), 2.3.2.27 (UniProt)
Find proteins for P22681 (Homo sapiens)
Explore P22681 
Go to UniProtKB:  P22681
NIH Common Fund Data Resources
PHAROS:  P22681
GTEx:  ENSG00000110395
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.82 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 147.842α = 90
b = 149.04β = 90
c = 344.118γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
xia2data scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
European Research CouncilUnited Kingdom647849
Cancer Research UKUnited Kingdom--

Revision History 

  • Version 1.0: 2016-09-21
    Type: Initial release