2NL9 image
Deposition Date 2006-10-19
Release Date 2007-03-27
Last Version Date 2024-10-30
Entry Detail
PDB ID:
2NL9
Keywords:
APOPTOSIS
Title:
Crystal structure of the Mcl-1:Bim BH3 complex
Biological Source:
Source Organism:
Mus musculus (Taxon ID: 10090)
Homo sapiens (Taxon ID: 9606)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.55 Å
R-Value Free:
0.20
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
I 2 2 2
2NL9 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:FUSION PROTEIN CONSISTING OF Induced myeloid leukemia cell differentiation protein Mcl-1 homolog
Gene (Uniprot):Mcl1, MCL1
Chain IDs:A
Chain Length:157
Number of Molecules:1
Biological Source:Mus musculus, Homo sapiens
UniProt ID:Q07820,P97287 Pfam ID:PF00452
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Bcl-2-like protein 11
Gene (Uniprot):BCL2L11
Chain IDs:B
Chain Length:26
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:O43521 Pfam ID:PF08945
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
MSE A MET SELENOMETHIONINE
Ligand Molecules
CL
ZN
Primary Citation
Structural insights into the degradation of Mcl-1 induced by BH3 domains.
Proc.Natl.Acad.Sci.USA 104 6217 6222 (2007)
PMID: 17389404 DOI: 10.1073/pnas.0701297104

Abstact

Apoptosis is held in check by prosurvival proteins of the Bcl-2 family. The distantly related BH3-only proteins bind to and antagonize them, thereby promoting apoptosis. Whereas binding of the BH3-only protein Noxa to prosurvival Mcl-1 induces Mcl-1 degradation by the proteasome, binding of another BH3-only ligand, Bim, elevates Mcl-1 protein levels. We compared the three-dimensional structures of the complexes formed between BH3 peptides of both Bim and Noxa, and we show that a discrete C-terminal sequence of the Noxa BH3 is necessary to instigate Mcl-1 degradation.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
1WSX
2NLA