Low-frequency and rare exome chip variants associate with fasting glucose and type 2 diabetes susceptibility

Jennifer Wessel, Audrey Y. Chu, Sara M. Willems, Shuai Wang, Hanieh Yaghootkar, Jennifer A. Brody, Marco Dauriz, Marie France Hivert, Sridharan Raghavan, Leonard Lipovich, Bertha Hidalgo, Keolu Fox, Jennifer E. Huffman, Ping An, Yingchang Lu, Laura J. Rasmussen-Torvik, Niels Grarup, Margaret G. Ehm, Li Li, Abigail S. BaldridgeAlena Stančáková, Ravinder Abrol, Céline Besse, Anne Boland, Jette Bork-Jensen, Myriam Fornage, Daniel F. Freitag, Melissa E. Garcia, Xiuqing Guo, Kazuo Hara, Aaron Isaacs, Johanna Jakobsdottir, Leslie A. Lange, Jill C. Layton, Man Li, Jing Hua Zhao, Karina Meidtner, Alanna C. Morrison, Mike A. Nalls, Marjolein J. Peters, Maria Sabater-Lleal, Claudia Schurmann, Angela Silveira, Albert V. Smith, Lorraine Southam, Marcus H. Stoiber, Rona J. Strawbridge, Kent D. Taylor, Tibor V. Varga, Kristine H. Allin

Research output: Contribution to journalArticlepeer-review

121 Scopus citations


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±0.01mmoll-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±0.035pmolinsulin mmolglucose-1, P=0.048), but higher 2-h glucose (β=0.16±0.05mmoll-1, P=4.3 × 10-4). We identify a gene-based association with FG at G6PC2 (p SKAT =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±0.004mmoll-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 languageEnglish (US)
Article number5897
JournalNature communications
StatePublished - Feb 2015

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

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