3VRQ

Crystal structure of the tyrosine kinase binding domain of Cbl-c (PL mutant)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.39 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.0 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
  • Primary Citation of Related Structures:  

  • 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 thi ...

    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-C
A, B
331Homo sapiensMutation(s): 1 
Gene Names: CBLC (CBL3, RNF57)
EC: 2.3.2.27
Find proteins for Q9ULV8 (Homo sapiens)
Go to Gene View: CBLC
Go to UniProtKB:  Q9ULV8
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A, B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.39 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.215 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 62.600α = 90.00
b = 66.211β = 106.02
c = 81.558γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
SCALEPACKdata scaling
MOLREPphasing
HKL-2000data reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-03-06
    Type: Initial release