Discovery of Potent Myeloid Cell Leukemia-1 (Mcl-1) inhibitors using Structure-Based Design

Experimental Data Snapshot

  • Resolution: 2.60 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.198 

wwPDB Validation   3D Report Full Report

Ligand Structure Quality Assessment 

This is version 1.4 of the entry. See complete history

Re-refinement Note

A newer entry is available that reflects an alternative modeling of the original data: 5IF4


Discovery and biological characterization of potent myeloid cell leukemia-1 inhibitors.

Lee, T.Bian, Z.Zhao, B.Hogdal, L.J.Sensintaffar, J.L.Goodwin, C.M.Belmar, J.Shaw, S.Tarr, J.C.Veerasamy, N.Matulis, S.M.Koss, B.Fischer, M.A.Arnold, A.L.Camper, D.V.Browning, C.F.Rossanese, O.W.Budhraja, A.Opferman, J.Boise, L.H.Savona, M.R.Letai, A.Olejniczak, E.T.Fesik, S.W.

(2017) FEBS Lett 591: 240-251

  • DOI: https://doi.org/10.1002/1873-3468.12497
  • Primary Citation of Related Structures:  
    5IEZ, 5IF4

  • PubMed Abstract: 

    Myeloid cell leukemia 1 (Mcl-1) is an antiapoptotic member of the Bcl-2 family of proteins that when overexpressed is associated with high tumor grade, poor survival, and resistance to chemotherapy. Mcl-1 is amplified in many human cancers, and knockdown of Mcl-1 using RNAi can lead to apoptosis. Thus, Mcl-1 is a promising cancer target. Here, we describe the discovery of picomolar Mcl-1 inhibitors that cause caspase activation, mitochondrial depolarization, and selective growth inhibition. These compounds represent valuable tools to study the role of Mcl-1 in cancer and serve as useful starting points for the discovery of clinically useful Mcl-1 inhibitors.

  • Organizational Affiliation

    Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Induced myeloid leukemia cell differentiation protein Mcl-1
A, B, C, D
159Homo sapiensMutation(s): 0 
Gene Names: MCL1BCL2L3
UniProt & NIH Common Fund Data Resources
Find proteins for Q07820 (Homo sapiens)
Explore Q07820 
Go to UniProtKB:  Q07820
PHAROS:  Q07820
GTEx:  ENSG00000143384 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ07820
Sequence Annotations
  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
6AL BindingDB:  5IEZ Ki: min: 7.2, max: 108 (nM) from 4 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.60 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.198 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.914α = 90
b = 136.046β = 101.62
c = 63.499γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report

Ligand Structure Quality Assessment 

Entry History & Funding Information

Deposition Data

  • Released Date: 2017-01-18 
  • Deposition Author(s): Zhao, B.

Funding OrganizationLocationGrant Number
National Institutes of Health/National Cancer Institute (NIH/NCI)United States--

Revision History  (Full details and data files)

  • Version 1.0: 2017-01-18
    Type: Initial release
  • Version 1.1: 2017-01-25
    Changes: Database references
  • Version 1.2: 2017-09-20
    Changes: Author supporting evidence
  • Version 1.3: 2019-12-04
    Changes: Author supporting evidence
  • Version 1.4: 2024-03-06
    Changes: Data collection, Database references