2LP8

SOLUTION STRUCTURE OF AN APOPTOSIS ACTIVATING PHOTOSWITCHABLE BAK PEPTIDE BOUND to BCL-XL


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 500 
  • Conformers Submitted: 21 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

NMR Solution Structure of a Photoswitchable Apoptosis Activating Bak Peptide Bound to Bcl-x(L).

Wysoczanski, P.Mart, R.J.Loveridge, E.J.Williams, C.Whittaker, S.B.Crump, M.P.Allemann, R.K.

(2012) J Am Chem Soc 134: 7644-7647

  • DOI: 10.1021/ja302390a
  • Primary Citation of Related Structures:  
    2LP8, 2LPC

  • PubMed Abstract: 
  • The Bcl-2 family of proteins includes the major regulators and effectors of the intrinsic apoptosis pathway. Cancers are frequently formed when activation of the apoptosis mechanism is compromised either by misregulated expression of prosurvival family members or, more frequently, by damage to the regulatory pathways that trigger intrinsic apoptosis ...

    The Bcl-2 family of proteins includes the major regulators and effectors of the intrinsic apoptosis pathway. Cancers are frequently formed when activation of the apoptosis mechanism is compromised either by misregulated expression of prosurvival family members or, more frequently, by damage to the regulatory pathways that trigger intrinsic apoptosis. Short peptides derived from the pro-apoptotic members of the Bcl-2 family can activate mechanisms that ultimately lead to cell death. The recent development of photocontrolled peptides that are able to change their conformation and activity upon irradiation with an external light source has provided new tools to target cells for apoptosis induction with temporal and spatial control. Here, we report the first NMR solution structure of a photoswitchable peptide derived from the proapoptotic protein Bak in complex with the antiapoptotic protein Bcl-x(L). This structure provides insight into the molecular mechanism, by which the increased affinity of such photopeptides compared to their native forms is achieved, and offers a rationale for the large differences in the binding affinities between the helical and nonhelical states.


    Organizational Affiliation

    School of Chemistry and Cardiff Catalysis Institute, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Bcl-2-like protein 1A185Homo sapiensMutation(s): 0 
Gene Names: BCL2LBCL2L1BCLX
Find proteins for Q07817 (Homo sapiens)
Explore Q07817 
Go to UniProtKB:  Q07817
NIH Common Fund Data Resources
PHAROS  Q07817
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Bcl-2 homologous antagonist/killerB18Homo sapiensMutation(s): 7 
Gene Names: BAK1BAKBCL2L7CDN1
Find proteins for Q16611 (Homo sapiens)
Explore Q16611 
Go to UniProtKB:  Q16611
NIH Common Fund Data Resources
PHAROS  Q16611
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
33B
Query on 33B

Download CCD File 
B
3,3'-(E)-diazene-1,2-diylbis{6-[(chloroacetyl)amino]benzenesulfonic acid}
C16 H14 Cl2 N4 O8 S2
XGDZZBFDOAZUPI-QURGRASLSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 500 
  • Conformers Submitted: 21 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2LP8 Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-04-18
    Type: Initial release
  • Version 1.1: 2012-05-09
    Changes: Database references
  • Version 1.2: 2012-05-23
    Changes: Database references