Pyruvate kinase M2 is a phosphotyrosine binding protein

  • Classification: TRANSFERASE
  • Organism(s): Homo sapiens
  • Mutation(s): No 

  • Deposited: 2007-12-04 Released: 2008-03-04 
  • Deposition Author(s): Wu, N.

Experimental Data Snapshot

  • Resolution: 2.50 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.211 

wwPDB Validation   3D Report Full Report

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Pyruvate kinase M2 is a phosphotyrosine-binding protein.

Christofk, H.R.Vander Heiden, M.G.Wu, N.Asara, J.M.Cantley, L.C.

(2008) Nature 452: 181-186

  • DOI: https://doi.org/10.1038/nature06667
  • Primary Citation of Related Structures:  
    3BJF, 3BJT

  • PubMed Abstract: 

    Growth factors stimulate cells to take up excess nutrients and to use them for anabolic processes. The biochemical mechanism by which this is accomplished is not fully understood but it is initiated by phosphorylation of signalling proteins on tyrosine residues. Using a novel proteomic screen for phosphotyrosine-binding proteins, we have made the observation that an enzyme involved in glycolysis, the human M2 (fetal) isoform of pyruvate kinase (PKM2), binds directly and selectively to tyrosine-phosphorylated peptides. We show that binding of phosphotyrosine peptides to PKM2 results in release of the allosteric activator fructose-1,6-bisphosphate, leading to inhibition of PKM2 enzymatic activity. We also provide evidence that this regulation of PKM2 by phosphotyrosine signalling diverts glucose metabolites from energy production to anabolic processes when cells are stimulated by certain growth factors. Collectively, our results indicate that expression of this phosphotyrosine-binding form of pyruvate kinase is critical for rapid growth in cancer cells.

  • Organizational Affiliation

    Department of Systems Biology.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Pyruvate kinase isozymes M1/M2
A, B, C, D
530Homo sapiensMutation(s): 0 
EC: (PDB Primary Data), (UniProt), (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P14618 (Homo sapiens)
Explore P14618 
Go to UniProtKB:  P14618
PHAROS:  P14618
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP14618
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.50 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.211 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.634α = 69.82
b = 80.707β = 77.74
c = 107.597γ = 67.97
Software Package:
Software NamePurpose
ADSCdata collection
DENZOdata reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

  • Released Date: 2008-03-04 
  • Deposition Author(s): Wu, N.

Revision History  (Full details and data files)

  • Version 1.0: 2008-03-04
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance