2A5E

SOLUTION NMR STRUCTURE OF TUMOR SUPPRESSOR P16INK4A, RESTRAINED MINIMIZED MEAN STRUCTURE

• PDB DOI:  https://doi.org/10.2210/pdb2A5E/pdb
• BMRB: 4086

• Classification: ANTI-ONCOGENE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 1998-02-13 Released: 1999-08-13 
• Deposition Author(s): Byeon, I.-J.L., Li, J., Ericson, K., Selby, T.L., Tevelev, A., Kim, H.-J., O'Maille, P., Tsai, M.-D.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 90 
• Conformers Submitted: 1 
• Selection Criteria: CLOSEST TO MEAN STRUCTURE WHICH SHOWS GOOD AGREEMENT WITH THE CONSTRAINTS. NONE OF THE CONSTRAINTS SHOW NOE VIOLATION BIGGER THAN 0.5 A AND DIHEDRAL ANGLE VIOLATION BIGGER THAN 5 DEGREE. 

Literature

Tumor suppressor p16INK4A: determination of solution structure and analyses of its interaction with cyclin-dependent kinase 4.

Byeon, I.J., Li, J., Ericson, K., Selby, T.L., Tevelev, A., Kim, H.J., O'Maille, P., Tsai, M.D.

(1998) Mol Cell 1: 421-431

• PubMed: 9660926 
• DOI: https://doi.org/10.1016/s1097-2765(00)80042-8
• Primary Citation of Related Structures:  
  1A5E, 2A5E


• PubMed Abstract: 
  

  The solution structure of the tumor suppressor p16INK4A has been determined by NMR, and important recognition regions of both cdk4 and p16INK4A have been identified. The tertiary structure of p16INK4A contains four helix-turn-helix motifs linked by three loops. Twelve tumorigenic mutants of p16INK4A have been constructed and analyzed for their structure and activity, and new mutants have been designed rationally. A fragment of 58 residues at the N terminus of cdk4 important for p16INK4A binding has been identified. The importance of this region was further verified by mutational analysis of cdk4. These results and docking experiments have been used to assess possible modes of binding between p16INK4A and cdk4.

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Organizational Affiliation: 

Department of Chemistry, Ohio State University, Columbus 43210, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 16.55 kDa 
• Atom Count: 1,160 
• Modelled Residue Count: 156 
• Deposited Residue Count: 156 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TUMOR SUPPRESSOR P16INK4A	A	156	Homo sapiens	Mutation(s): 0  Gene Names: CDKN2A, CDKN2, MTS1
UniProt & NIH Common Fund Data Resources
Find proteins for P42771 (Homo sapiens) Explore P42771  Go to UniProtKB:  P42771
PHAROS:  P42771

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 90 
• Conformers Submitted: 1 
• Selection Criteria: CLOSEST TO MEAN STRUCTURE WHICH SHOWS GOOD AGREEMENT WITH THE CONSTRAINTS. NONE OF THE CONSTRAINTS SHOW NOE VIOLATION BIGGER THAN 0.5 A AND DIHEDRAL ANGLE VIOLATION BIGGER THAN 5 DEGREE. 

Structure Validation

Currently 2A5E does not have a validation slider image.

Entry History 

Deposition Data

• Released Date: 1999-08-13 
Deposition Author(s): Byeon, I.-J.L., Li, J., Ericson, K., Selby, T.L., Tevelev, A., Kim, H.-J., O'Maille, P., Tsai, M.-D.

Revision History  

• Version 1.0: 1999-08-13
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-03-09
  Changes: Database references, Derived calculations, Other