1WSX

Solution structure of MCL-1


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 256 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy, structures with the least restraint violations, structures with acceptable covalent geometry 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Solution Structure of Prosurvival Mcl-1 and Characterization of Its Binding by Proapoptotic BH3-only Ligands

Day, C.L.Chen, L.Richardson, S.J.Harrison, P.J.Huang, D.C.Hinds, M.G.

(2005) J.Biol.Chem. 280: 4738-4744

  • DOI: 10.1074/jbc.M411434200

  • PubMed Abstract: 
  • The B cell lymphoma-2 (Bcl-2) homologs myeloid cell leukemia-1 (Mcl-1) and A1 are prosurvival factors that selectively bind a subset of proapoptotic Bcl homology (BH) 3-only proteins. To investigate the molecular basis of the selectivity, we determin ...

    The B cell lymphoma-2 (Bcl-2) homologs myeloid cell leukemia-1 (Mcl-1) and A1 are prosurvival factors that selectively bind a subset of proapoptotic Bcl homology (BH) 3-only proteins. To investigate the molecular basis of the selectivity, we determined the solution structure of the C-terminal Bcl-2-like domain of Mcl-1. This domain shares features expected of a prosurvival Bcl-2 protein, having a helical fold centered on a core hydrophobic helix and a surface-exposed hydrophobic groove for binding its cognate partners. A number of residues in the binding groove differentiate Mcl-1 from its homologs, and in contrast to other Bcl-2 homologs, Mcl-1 has a binding groove in a conformation intermediate between the open structures characterized by peptide complexes and the closed state observed in unliganded structures. Mutagenesis of potential binding site residues was used to probe the contributions of groove residues to the binding properties of Mcl-1. Although mutations in Mcl-1 had little impact on binding, a single mutation in the BH3-only ligand Bad enabled it to bind both Mcl-1 and A1 while retaining its binding to Bcl-2, Bcl-xL, and Bcl-w. Elucidating the selective action of certain BH3-only ligands is required for delineating their mode of action and will aid the search for effective BH3-mimetic drugs.


    Organizational Affiliation

    Department of Biochemistry, University of Otago, Dunedin 9001, New Zealand.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
myeloid cell leukemia sequence 1
A
162Mus musculusMutation(s): 0 
Gene Names: Mcl1
Find proteins for P97287 (Mus musculus)
Go to UniProtKB:  P97287
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 256 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy, structures with the least restraint violations, structures with acceptable covalent geometry 
  • Olderado: 1WSX Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-11-23
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance