Activator-Bound Structure of Human Pyruvate Kinase M2

Experimental Data Snapshot

  • Resolution: 1.95 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 

wwPDB Validation 3D Report Full Report

This is version 1.6 of the entry. See complete history


Pyruvate kinase M2 activators promote tetramer formation and suppress tumorigenesis.

Anastasiou, D.Yu, Y.Israelsen, W.J.Jiang, J.K.Boxer, M.B.Hong, B.S.Tempel, W.Dimov, S.Shen, M.Jha, A.Yang, H.Mattaini, K.R.Metallo, C.M.Fiske, B.P.Courtney, K.D.Malstrom, S.Khan, T.M.Kung, C.Skoumbourdis, A.P.Veith, H.Southall, N.Walsh, M.J.Brimacombe, K.R.Leister, W.Lunt, S.Y.Johnson, Z.R.Yen, K.E.Kunii, K.Davidson, S.M.Christofk, H.R.Austin, C.P.Inglese, J.Harris, M.H.Asara, J.M.Stephanopoulos, G.Salituro, F.G.Jin, S.Dang, L.Auld, D.S.Park, H.W.Cantley, L.C.Thomas, C.J.Vander Heiden, M.G.

(2012) Nat Chem Biol 8: 839-847

  • DOI: 10.1038/nchembio.1060
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Cancer cells engage in a metabolic program to enhance biosynthesis and support cell proliferation. The regulatory properties of pyruvate kinase M2 (PKM2) influence altered glucose metabolism in cancer. The interaction of PKM2 with phosphotyrosine-con ...

    Cancer cells engage in a metabolic program to enhance biosynthesis and support cell proliferation. The regulatory properties of pyruvate kinase M2 (PKM2) influence altered glucose metabolism in cancer. The interaction of PKM2 with phosphotyrosine-containing proteins inhibits enzyme activity and increases the availability of glycolytic metabolites to support cell proliferation. This suggests that high pyruvate kinase activity may suppress tumor growth. We show that expression of PKM1, the pyruvate kinase isoform with high constitutive activity, or exposure to published small-molecule PKM2 activators inhibits the growth of xenograft tumors. Structural studies reveal that small-molecule activators bind PKM2 at the subunit interaction interface, a site that is distinct from that of the endogenous activator fructose-1,6-bisphosphate (FBP). However, unlike FBP, binding of activators to PKM2 promotes a constitutively active enzyme state that is resistant to inhibition by tyrosine-phosphorylated proteins. These data support the notion that small-molecule activation of PKM2 can interfere with anabolic metabolism.

    Organizational Affiliation

    Department of Medicine, Division of Signal Transduction, Beth Israel Deaconess Medical Center, Boston, MA, USA.


Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Pyruvate kinase isozymes M1/M2A, B, C, D550Homo sapiensMutation(s): 0 
Find proteins for P14618 (Homo sapiens)
Explore P14618 
Go to UniProtKB:  P14618
NIH Common Fund Data Resources
PHAROS  P14618
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
Query on 3SZ

Download CCD File 
A, D
C19 H23 N3 O6 S2
 Ligand Interaction
Query on FBP

Download CCD File 
A, B, C, D
C6 H14 O12 P2
 Ligand Interaction
Query on SO4

Download CCD File 
A, B, C, D
O4 S
 Ligand Interaction
Query on UNX

Download CCD File 
A, B, C, D
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
3SZEC50:  38   nM  BindingDB
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 80.882α = 90
b = 152.564β = 103.17
c = 93.036γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PDB_EXTRACTdata extraction
StructureStudiodata collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report

Entry History 

Revision History 

  • Version 1.0: 2010-04-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2012-09-12
    Changes: Database references
  • Version 1.3: 2012-11-07
    Changes: Database references
  • Version 1.4: 2013-01-02
    Changes: Database references
  • Version 1.5: 2017-11-08
    Changes: Refinement description
  • Version 1.6: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Database references, Derived calculations, Structure summary