5X1W

PKM2 in complex with compound 5


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.237 
  • R-Value Observed: 0.242 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Discovery and structure-guided fragment-linking of 4-(2,3-dichlorobenzoyl)-1-methyl-pyrrole-2-carboxamide as a pyruvate kinase M2 activator

Matsui, Y.Yasumatsu, I.Asahi, T.Kitamura, T.Kanai, K.Ubukata, O.Hayasaka, H.Takaishi, S.Hanzawa, H.Katakura, S.

(2017) Bioorg Med Chem 25: 3540-3546

  • DOI: https://doi.org/10.1016/j.bmc.2017.05.004
  • Primary Citation of Related Structures:  
    5X1V, 5X1W

  • PubMed Abstract: 

    Tumor cells switch glucose metabolism to aerobic glycolysis by expressing the pyruvate kinase M2 isoform (PKM2) in a low active form, providing glycolytic intermediates as building blocks for biosynthetic processes, and thereby supporting cell proliferation. Activation of PKM2 should invert aerobic glycolysis to an oxidative metabolism and prevent cancer growth. Thus, PKM2 has gained attention as a promising cancer therapy target. To obtain novel PKM2 activators, we conducted a high-throughput screening (HTS). Among several hit compounds, a fragment-like hit compound with low potency but high ligand efficiency was identified. Two molecules of the hit compound bound at one activator binding site, and the molecules were linked based on the crystal structure. Since this linkage succeeded in maintaining the original position of the hit compound, the obtained compound exhibited highly improved potency in an in vitro assay. The linked compound also showed PKM2 activating activity in a cell based assay, and cellular growth inhibition of the A549 cancer cell line. Discovery of this novel scaffold and binding mode of the linked compound provides a valuable platform for the structure-guided design of PKM2 activators.


  • Organizational Affiliation

    Daiichi Sankyo RD Novare Co., Ltd., 1-16-13, Kita-Kasai, Edogawa-ku, Tokyo 134-8630, Japan. Electronic address: matsui.yumi.gk@rdn.daiichisankyo.co.jp.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Pyruvate kinase PKM
A, B, C, D
550Homo sapiensMutation(s): 0 
Gene Names: PKMOIP3PK2PK3PKM2
EC: 2.7.1.40 (PDB Primary Data), 2.7.11.1 (UniProt), 2.7.10.2 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P14618 (Homo sapiens)
Explore P14618 
Go to UniProtKB:  P14618
PHAROS:  P14618
GTEx:  ENSG00000067225 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP14618
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.237 
  • R-Value Observed: 0.242 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 80.823α = 90
b = 153.486β = 103.52
c = 94.207γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
CNSphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-05-31
    Type: Initial release
  • Version 1.1: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary
  • Version 1.2: 2023-11-22
    Changes: Data collection, Database references, Refinement description, Structure summary