rs7924080

This variant is located in the TCF7L2 gene.

GWAS Catalog Trait Associations (1)

Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.

Research that mentions this SNP (1)

TCF7L2 variants are associated with increased proinsulin/insulin ratios but not obesity traits in the Framingham Heart Study
AssociationN=2,512Stolerman ES et al.(2009)· Diabetologia

This study examined TCF7L2 variants in 2,512 Framingham Heart Study participants and confirmed that rs7903146 T risk allele associates with increased fasting plasma glucose (p=0.01) and a 23.5% higher proinsulin/insulin ratio (p=1×10⁻⁷) compared to C/C homozygotes, supporting the hypothesis of impaired beta cell insulin processing. However, the authors found no association between TCF7L2 haplotype A and obesity measures (BMI p=0.98), suggesting previous positive associations were likely due to ascertainment bias.

Traits studied:Body mass indexFasting insulinFasting plasma glucoseHbA1cInsulin resistanceObesityProinsulin/insulin ratioType 2 diabetes

About TCF7L2

This gene encodes a high mobility group (HMG) box-containing transcription factor that plays a key role in the Wnt signaling pathway. The protein has been implicated in blood glucose homeostasis. Genetic variants of this gene are associated with increased risk of type 2 diabetes. Several transcript variants encoding multiple different isoforms have been found for this gene.[provided by RefSeq, Oct 2010]

View all TCF7L2 variants →

Gene information from NCBI Gene. Variant classifications from ClinVar.

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