A novel p16(INK4A) mutation associated with esophageal squamous cell carcinoma in a high risk population

Biomarkers. 2012 Sep;17(6):552-6. doi: 10.3109/1354750X.2012.699556. Epub 2012 Jun 22.

Abstract

This study describes identification of p16(INK4A) sequence variants and their potential association with esophageal squamous cell carcinoma (ESCC) in a high risk population from Kashmir, India. We report a novel 7 base pair exon 2 deletion in 22 out of 106 (~20%) surgically resected tumor samples. The deletion beginning at the second base of codon 103, results in a frame shift causing premature termination of the protein at codon 142, with structural and functional consequences predicted by insilico analysis. The described mutation is a previously unreported variant of p16(INK4A), perhaps representing a founder mutation unique to the population.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Base Sequence
  • Carcinoma, Squamous Cell / genetics*
  • Cyclin-Dependent Kinase 6 / chemistry
  • Cyclin-Dependent Kinase Inhibitor p16 / genetics*
  • DNA Mutational Analysis
  • Esophageal Neoplasms / genetics*
  • Exons
  • Founder Effect
  • Frameshift Mutation
  • Genetic Association Studies
  • Humans
  • India
  • Models, Molecular
  • Population*
  • Protein Binding
  • Protein Structure, Secondary
  • Risk Factors
  • Sequence Deletion*
  • Structural Homology, Protein
  • Thermodynamics

Substances

  • Cyclin-Dependent Kinase Inhibitor p16
  • CDK6 protein, human
  • Cyclin-Dependent Kinase 6