Solution structure of the chimera of the PTB domain of SNT-2 and 19-residue peptide (aa 1571-1589) of hALK

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations,target function 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Structural basis for the recognition of nucleophosmin-anaplastic lymphoma kinase oncoprotein by the phosphotyrosine binding domain of Suc1-associated neurotrophic factor-induced tyrosine-phosphorylated target-2

Koshiba, S.Li, H.Motoda, Y.Tomizawa, T.Kasai, T.Tochio, N.Yabuki, T.Harada, T.Watanabe, S.Tanaka, A.Shirouzu, M.Kigawa, T.Yamamoto, T.Yokoyama, S.

(2010) J Struct Funct Genomics 11: 125-141

  • DOI: https://doi.org/10.1007/s10969-010-9091-x
  • Primary Citation of Related Structures:  
    2KUP, 2KUQ, 2YS5, 2YT2

  • PubMed Abstract: 

    The nucleophosmin-anaplastic lymphoma kinase (NPM-ALK) fusion oncoprotein, formed by the t(2;5) chromosomal translocation in anaplastic large-cell lymphomas, has constitutive tyrosine kinase activity and interacts with a number of signaling molecules. One of the interacting partners of NPM-ALK is the adaptor protein, Suc1-associated neurotrophic factor-induced tyrosine-phosphorylated target (SNT), and mutations that deprive NPM-ALK of all three of the SNT-binding sites significantly reduced the transforming activity. In this study, the interactions of the three binding sites in NPM-ALK with the phosphotyrosine binding (PTB) domain of SNT-2 were analyzed. First, by isothermal titration calorimetry, we found that the phosphorylation-independent binding site in NPM-ALK interacts with the SNT-2 PTB domain more tightly than the phosphorylation-dependent binding sites. Second, the solution structure of the SNT-2 PTB domain in complex with the nonphosphorylated NPM-ALK peptide was determined by nuclear magnetic resonance spectroscopy. The NPM-ALK peptide interacts with the hydrophobic surface of the PTB domain and intermolecularly extends the PTB beta-sheet. This interaction mode is much broader and more extensive than those of the phosphorylation-dependent binding sites. Our results indicate that the higher binding activity of the phosphorylation-independent binding site is caused by additional hydrophobic interactions.

  • Organizational Affiliation

    RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045, Japan.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Fibroblast growth factor receptor substrate 3 and ALK tyrosine kinase receptor153Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for O43559 (Homo sapiens)
Explore O43559 
Go to UniProtKB:  O43559
PHAROS:  O43559
GTEx:  ENSG00000137218 
Find proteins for Q9UM73 (Homo sapiens)
Explore Q9UM73 
Go to UniProtKB:  Q9UM73
GTEx:  ENSG00000171094 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsQ9UM73O43559
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations,target function 

Structure Validation

View Full Validation Report

Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2008-04-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2014-02-12
    Changes: Database references