Abstract
Fasting glucose and insulin are intermediate traits for type 2 diabetes. Here we explore the role of coding variation on these traits by analysis of variants on the HumanExome BeadChip in 60,564 non-diabetic individuals and in 16,491 T2D cases and 81,877 controls. We identify a novel association of a low-frequency nonsynonymous SNV in GLP1R (A316T; rs10305492; MAF=1.4%) with lower FG (β=-0.09±0.01 mmol l-1, P=3.4 × 10-12), T2D risk (OR[95%CI]=0.86[0.76-0.96], P=0.010), early insulin secretion (β=-0.07±0.035 pmolinsulin mmolglucose-1, P=0.048), but higher 2-h glucose (β=0.16±0.05 mmol l-1, P=4.3 × 10-4). We identify a gene-based association with FG at G6PC2 (pSKAT=6.8 × 10-6) driven by four rare protein-coding SNVs (H177Y, Y207S, R283X and S324P). We identify rs651007 (MAF=20%) in the first intron of ABO at the putative promoter of an antisense lncRNA, associating with higher FG (β=0.02±0.004 mmol l-1, P=1.3 × 10-8). Our approach identifies novel coding variant associations and extends the allelic spectrum of variation underlying diabetes-related quantitative traits and T2D susceptibility.
| Original language | English |
|---|---|
| Article number | 5897 |
| Number of pages | 16 |
| Journal | Nature Communications |
| Volume | 6 |
| DOIs | |
| Publication status | Published - 29 Jan 2015 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- African Continental Ancestry Group/genetics
- Blood Glucose/metabolism
- Diabetes Mellitus, Type 2/blood
- European Continental Ancestry Group/genetics
- Exome/genetics
- Fasting/blood
- Genetic Association Studies
- Genetic Loci
- Genetic Predisposition to Disease
- Genetic Variation
- Glucagon-Like Peptide-1 Receptor/genetics
- Glucose-6-Phosphatase/genetics
- Humans
- Insulin/blood
- Mutation Rate
- Oligonucleotide Array Sequence Analysis
- Polymorphism, Single Nucleotide/genetics
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