2JM6

Solution structure of MCL-1 complexed with NOXAB

• PDB DOI: https://doi.org/10.2210/pdb2JM6/pdb

• Classification: APOPTOSIS
• Organism(s): Mus musculus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2006-10-17 Released: 2007-03-20 
• Deposition Author(s): Czabotar, P.E., Lee, E.F., van Delft, M.F., Day, C.L., Smith, B.J., Huang, D.C.S., Fairlie, W.D., Hinds, M.G., Colman, P.M.

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Experimental Data Snapshot

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

Literature

Structural insights into the degradation of Mcl-1 induced by BH3 domains

Czabotar, P.E., Lee, E.F., van Delft, M.F., Day, C.L., Smith, B.J., Huang, D.C.S., Fairlie, W.D., Hinds, M.G., Colman, P.M.

(2007) Proc Natl Acad Sci U S A 104: 6217-6222

• PubMed: 17389404 
• DOI: https://doi.org/10.1073/pnas.0701297104
• Primary Citation of Related Structures:  
  2JM6, 2NL9, 2NLA


• PubMed Abstract: 
  

  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.

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Organizational Affiliation: 

The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3050, Australia.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 21.41 kDa 
• Atom Count: 1,506 
• Modelled Residue Count: 189 
• Deposited Residue Count: 189 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Noxa	A	27	Mus musculus	Mutation(s): 0  Gene Names: Pmaip1, Noxa
UniProt
Find proteins for Q9JM54 (Mus musculus) Explore Q9JM54  Go to UniProtKB:  Q9JM54

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Myeloid cell leukemia-1 protein Mcl-1 homolog	B	162	Mus musculus	Mutation(s): 0  Gene Names: Mcl1
UniProt & NIH Common Fund Data Resources
Find proteins for P97287 (Mus musculus) Explore P97287  Go to UniProtKB:  P97287
IMPC:  MGI:101769

Experimental Data & Validation

Experimental Data

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-03-20 
Deposition Author(s): Czabotar, P.E., Lee, E.F., van Delft, M.F., Day, C.L., Smith, B.J., Huang, D.C.S., Fairlie, W.D., Hinds, M.G., Colman, P.M.

Revision History  

• Version 1.0: 2007-03-20
  Type: Initial release
  
• Version 1.1: 2007-10-21
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-03-09
  Changes: Data collection, Database references, Derived calculations
• Version 1.4: 2023-12-20
  Changes: Data collection, Other