2N9C

NRAS Isoform 5

• PDB DOI: https://doi.org/10.2210/pdb2N9C/pdb
• BMRB: 25900

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2015-11-13 Released: 2016-03-23 
• Deposition Author(s): Markowitz, J., Mal, T.K., Yuan, C., Courtney, N.B., Patel, M., Stiff, A.R., Blachly, J., Walker, C., Eisfeld, A., de la Chapelle, A., Carson III, W.E.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 25 
• Conformers Submitted: 25 
• Selection Criteria: all calculated structures submitted 

Literature

Structural characterization of NRAS isoform 5.

Markowitz, J., Mal, T.K., Yuan, C., Courtney, N.B., Patel, M., Stiff, A.R., Blachly, J., Walker, C., Eisfeld, A.K., de la Chapelle, A., Carson, W.E.

(2016) Protein Sci 25: 1069-1074

• PubMed: 26947772 
• DOI: https://doi.org/10.1002/pro.2916
• Primary Citation of Related Structures:  
  2N9C


• PubMed Abstract: 
  

  It was recently discovered that the NRAS isoform 5 (20 amino acids) is expressed in melanoma and results in a more aggressive cell phenotype. This novel isoform is responsible for increased phosphorylation of downstream targets such as AKT, MEK, and ERK as well as increased cellular proliferation. This structure report describes the NMR solution structure of NRAS isoform 5 to be used as a starting point to understand its biophysical interactions. The isoform is highly flexible in aqueous solution, but forms a helix-turn-coil structure in the presence of trifluoroethanol as determined by NMR and CD spectroscopy.

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Organizational Affiliation: 

Moffitt Cancer Center Department of Cutaneous Oncology, The Ohio State University, Columbus, Ohio.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 2.12 kDa 
• Atom Count: 148 
• Modelled Residue Count: 20 
• Deposited Residue Count: 20 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GTPase NRas	A	20	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P01111 (Homo sapiens) Explore P01111  Go to UniProtKB:  P01111
PHAROS:  P01111 GTEx:  ENSG00000213281

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 25 
• Conformers Submitted: 25 
• Selection Criteria: all calculated structures submitted 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2016-03-23 
Deposition Author(s): Markowitz, J., Mal, T.K., Yuan, C., Courtney, N.B., Patel, M., Stiff, A.R., Blachly, J., Walker, C., Eisfeld, A., de la Chapelle, A., Carson III, W.E.

Revision History  

• Version 1.0: 2016-03-23
  Type: Initial release
  
• Version 1.1: 2016-05-11
  Changes: Database references
• Version 1.2: 2023-06-14
  Changes: Data collection, Database references, Other