1. Exome sequencing-driven discovery of coding polymorphisms associated with common metabolic phenotypes
- Author
-
Albrechtsen, A, Grarup, N, Li, Y, Sparsø, T, Tian, G, Cao, H, Jiang, T, Kim, SY, Korneliussen, T, Li, Q, Nie, C, Wu, R, Skotte, L, Morris, AP, Ladenvall, C, Cauchi, S, Stančáková, A, Andersen, G, Astrup, A, Banasik, K, Bennett, AJ, Bolund, L, Charpentier, G, Chen, Y, Dekker, JM, Doney, ASF, Dorkhan, M, Forsen, T, Frayling, TM, Groves, CJ, Gui, Y, Hallmans, G, Hattersley, AT, He, K, Hitman, GA, Holmkvist, J, Huang, S, Jiang, H, Jin, X, Justesen, JM, Kristiansen, K, Kuusisto, J, Lajer, M, Lantieri, O, Li, W, Liang, H, Liao, Q, Liu, X, Ma, T, Ma, X, Manijak, MP, Marre, M, Mokrosiński, J, Morris, AD, Mu, B, Nielsen, AA, Nijpels, G, Nilsson, P, Palmer, CNA, Rayner, NW, Renström, F, Ribel-Madsen, R, Robertson, N, Rolandsson, O, Rossing, P, Schwartz, TW, Slagboom, PE, Sterner, M, D.E.S.I.R. Study Group, Tang, M, Tarnow, L, the DIAGRAM Consortium, Tuomi, T, van’t Riet, E, van Leeuwen, N, Varga, TV, Vestmar, MA, Walker, M, Wang, B, Wang, Y, Wu, H, Xi, F, Yengo, L, Yu, C, Zhang, X, Zhang, J, Zhang, Q, Zhang, W, Zheng, H, Zhou, Y, Altshuler, D, ‘t Hart, LM, Franks, PW, Balkau, B, Froguel, P, McCarthy, MI, Laakso, M, Groop, L, Christensen, C, and Brandslund, I
- Subjects
Diabetes ,Human Genome ,Nutrition ,Genetics ,Aetiology ,2.1 Biological and endogenous factors ,Metabolic and endocrine ,Diabetes Mellitus ,Type 2 ,Exome ,Gene Frequency ,Genotype ,High-Throughput Nucleotide Sequencing ,Humans ,Hypertension ,Polymorphism ,Genetic ,Polymorphism ,Single Nucleotide ,Exome sequencing ,Genetic epidemiology ,Lipids ,Next-generation sequencing ,Obesity ,Type 2 diabetes ,D.E.S.I.R. Study Group ,DIAGRAM Consortium ,Clinical Sciences ,Paediatrics and Reproductive Medicine ,Public Health and Health Services ,Endocrinology & Metabolism - Abstract
Aims/hypothesisHuman complex metabolic traits are in part regulated by genetic determinants. Here we applied exome sequencing to identify novel associations of coding polymorphisms at minor allele frequencies (MAFs) >1% with common metabolic phenotypes.MethodsThe study comprised three stages. We performed medium-depth (8×) whole exome sequencing in 1,000 cases with type 2 diabetes, BMI >27.5 kg/m(2) and hypertension and in 1,000 controls (stage 1). We selected 16,192 polymorphisms nominally associated (p 1%. In stage 2 we identified 51 potential associations with one or more of eight metabolic phenotypes covered by 45 unique polymorphisms. In meta-analyses of stage 2 and stage 3 results, we demonstrated robust associations for coding polymorphisms in CD300LG (fasting HDL-cholesterol: MAF 3.5%, p = 8.5 × 10(-14)), COBLL1 (type 2 diabetes: MAF 12.5%, OR 0.88, p = 1.2 × 10(-11)) and MACF1 (type 2 diabetes: MAF 23.4%, OR 1.10, p = 8.2 × 10(-10)).Conclusions/interpretationWe applied exome sequencing as a basis for finding genetic determinants of metabolic traits and show the existence of low-frequency and common coding polymorphisms with impact on common metabolic traits. Based on our study, coding polymorphisms with MAF above 1% do not seem to have particularly high effect sizes on the measured metabolic traits.
- Published
- 2013