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: 2.1 Å
  • R-Value Free: 0.211 
  • R-Value Work: 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

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Bcl-2-like protein 1
A
198Mus musculusMutations: S86A, E85M
Gene Names: Bcl2l1 (Bcl2l, Bclx)
Find proteins for Q64373 (Mus musculus)
Go to UniProtKB:  Q64373
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Bcl-2-like protein 1, BIM BH3 domain
B
21Homo sapiensGene Names: BCL2L11 (BIM)
Find proteins for O43521 (Homo sapiens)
Go to Gene View: BCL2L11
Go to UniProtKB:  O43521
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ACT
Query on ACT

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

Download SDF File 
Download CCD File 
B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
B
L-PEPTIDE LINKINGC3 H8 N O6 PSER
NLG
Query on NLG
B
NON-POLYMERC7 H11 N O5

--

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.183 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 72.926α = 90.00
b = 72.926β = 90.00
c = 75.458γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data reduction
MOLREPphasing
CNSrefinement
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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