3VRO

Crystal structure of the tyrosine kinase binding domain of Cbl-c in complex with phospho-Src peptide

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.166 
  • R-Value Observed: 0.168 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Structural flexibility regulates phosphopeptide-binding activity of the tyrosine kinase binding domain of Cbl-c.

Takeshita, K., Tezuka, T., Isozaki, Y., Yamashita, E., Suzuki, M., Kim, M., Yamanashi, Y., Yamamoto, T., Nakagawa, A.

(2012) J Biochem 152: 487-495

  • DOI: 10.1093/jb/mvs085
  • Structures With Same Primary Citation

  • PubMed Abstract: 

    • Through their ubiquitin ligase activity, Cbl-family proteins suppress signalling mediated by protein-tyrosine kinases (PTKs), but can also function as adaptor proteins to positively regulate signalling. The tyrosine kinase binding (TKB) domain of this family is critical for binding with tyrosine-phosphorylated target proteins ...

    Through their ubiquitin ligase activity, Cbl-family proteins suppress signalling mediated by protein-tyrosine kinases (PTKs), but can also function as adaptor proteins to positively regulate signalling. The tyrosine kinase binding (TKB) domain of this family is critical for binding with tyrosine-phosphorylated target proteins. Here, we analysed the crystal structure of the TKB domain of Cbl-c/Cbl-3 (Cbl-c TKB), which is a distinct member of the mammalian Cbl-family. In comparison with Cbl TKB, Cbl-c TKB showed restricted structural flexibility upon phosphopeptide binding. A mutation in Cbl-c TKB augmenting this flexibility enhanced its binding to target phosphoproteins. These results suggest that proteins, post-translational modifications or mutations that alter structural flexibility of the TKB domain of Cbl-family proteins could regulate their binding to target phosphoproteins and thereby, affect PTK-mediated signalling.

    Organizational Affiliation: 

    Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Signal transduction protein CBL-CA331Homo sapiensMutation(s): 0 
Gene Names: CBLC, CBL3, RNF57
EC: 2.3.2.27
Find proteins for Q9ULV8 (Homo sapiens)
Explore Q9ULV8 
Go to UniProtKB:  Q9ULV8
NIH Common Fund Data Resources
PHAROS  Q9ULV8
GTEx  ENSG00000142273
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by: Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Proto-oncogene tyrosine-protein kinase SrcB13Homo sapiensMutation(s): 0 
Gene Names: SRC, SRC1
EC: 2.7.10.2
Find proteins for P12931 (Homo sapiens)
Explore P12931 
Go to UniProtKB:  P12931
NIH Common Fund Data Resources
PHAROS  P12931
GTEx  ENSG00000197122
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N		 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR		BL-PEPTIDE LINKINGC9 H12 N O6 PTYR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.166 
  • R-Value Observed: 0.168 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 93.282α = 90
b = 108.493β = 90
c = 54.761γ = 90
Software Package:
Software NamePurpose
SCALEPACKdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
DENZOdata reduction

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-03-06
    Type: Initial release
  • Version 1.1: 2017-11-22
    Changes: Refinement description