The Kruppel-like factor 11 (KLF11) Q62R polymorphism is not associated with type 2 diabetes in 8,676 people

Research output: Contribution to journalArticle

Abstract

Kruppel-like factor 11 is a pancreatic transcription factor whose activity induces the insulin gene. A common glutamine-to-arginine change at codon 62 (Q62R) in its gene KLF11 has been recently associated with type 2 diabetes in two independent samples. Q62R and two other rare missense variants (A347S and T220M) were also shown to affect the function of KLF11 in vitro, and insulin levels were lower in carriers of the minor allele at Q62R. We therefore examined their impact on common type 2 diabetes in several family-based and case-control samples of northern-European ancestry, totaling 8,676 individuals. We did not detect the rare A347S and T220M variants in our samples. With respect to Q62R, despite > 99% power to detect an association of the previously published magnitude, Q62R was not associated with type 2 diabetes (pooled odds ratio 0.97 [95% Cl 0.88-1.08], P = 0.63). In a subset of normoglycemic individuals, we did not observe significant differences in various insulin traits according to genotype at KLF11 Q62R. We conclude that the KLF11 A347S and T220M mutations do not contribute to increased risk of diabetes in European-derived populations and that the Q62R polymorphism has, at best, a minor effect on diabetes risk.

Details

Authors
  • Jose C. Florez
  • Richa Saxena
  • Wendy Winckler
  • Noel P. Burtt
  • Peter Almgren
  • Kristina Bengtsson Boström
  • Tiinamaija Tuomi
  • Daniel Gaudet
  • Kristin G. Ardlie
  • Mark J. Daly
  • David Altshuler
  • Joel N. Hirschhorn
  • Leif Groop
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Endocrinology and Diabetes
Original languageEnglish
Pages (from-to)3620-3624
JournalDiabetes
Volume55
Issue number12
Publication statusPublished - 2006
Publication categoryResearch
Peer-reviewedYes