4YJ4

Crystal structure of Bcl-xL in complex with the BIM BH3 domain containing Ile155-to-Arg and Glu158-to-phosphoserine mutations


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.183 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Conversion of cell-survival activity of Akt into apoptotic death of cancer cells by two mutations on the BIM BH3 domain.

Kim, J.S.Ku, B.Woo, T.G.Oh, A.Y.Jung, Y.S.Soh, Y.M.Yeom, J.H.Lee, K.Park, B.J.Oh, B.H.Ha, N.C.

(2015) Cell Death Dis 6: e1804-e1804

  • DOI: 10.1038/cddis.2015.118
  • Primary Citation of Related Structures:  
    4YJ4

  • PubMed Abstract: 
  • Survival and proliferation of cancer cells are often associated with hyperactivity of the serine/threonine kinase, Akt. Herein, we show that prosurvival activity of Akt can be converted into prodeath activity by embedding an Akt recognition sequence ...

    Survival and proliferation of cancer cells are often associated with hyperactivity of the serine/threonine kinase, Akt. Herein, we show that prosurvival activity of Akt can be converted into prodeath activity by embedding an Akt recognition sequence in the apoptogenic BH3 domain of human BIM. The recognition sequence was created by introducing two mutations, I155R and E158S, into the core region of the BIM BH3 domain. Although a 21-mer BIM BH3 peptide containing these two mutations bound weakly to BCL-XL and BCL-2, this peptide with phosphorylation of Ser158 bound to these proteins with a dissociation constant of <10 nM. The crystal structure of the phosphorylated peptide bound to BCL-XL revealed that the phospho-Ser158 makes favorable interactions with two BCL-XL residues, which cannot be formed with unphosphorylated Ser158. Remarkably, the designed peptide showed a cytotoxic effect on PTEN-null PC3 tumor cells whose Akt activity is aberrantly high. The cell-killing activity disappeared when the cellular Akt activity was lowered by ectopic PTEN expression. Thus, these results lay a foundation for developing a peptide or protein agent that is dormant in normal cells but is transformed into a potent apoptogenic molecule upon phosphorylation by hyperactivity of Akt in cancer cells.


    Organizational Affiliation

    Department of Agricultural Biotechnology, Center for Food Safety and Toxicology, Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Bcl-2-like protein 1A198Mus musculusMutation(s): 2 
Gene Names: Bcl2l1Bcl2lBclx
Find proteins for Q64373 (Mus musculus)
Explore Q64373 
Go to UniProtKB:  Q64373
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Bcl-2-like protein 1, BIM BH3 domainB21Homo sapiensMutation(s): 0 
Gene Names: BCL2L11BIM
Find proteins for O43521 (Homo sapiens)
Explore O43521 
Go to UniProtKB:  O43521
NIH Common Fund Data Resources
PHAROS  O43521
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ACT
Query on ACT

Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
CL
Query on CL

Download CCD File 
B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
BL-PEPTIDE LINKINGC3 H8 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.183 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.926α = 90
b = 72.926β = 90
c = 75.458γ = 120
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-07-29
    Type: Initial release
  • Version 1.1: 2017-09-27
    Changes: Data collection, Derived calculations, Source and taxonomy