Protein-altering variants associated with body mass index implicate pathways that control energy intake and expenditure in obesity

Valérie Turcot, Yingchang Lu, Heather M. Highland, Claudia Schurmann, Anne E. Justice, Rebecca S. Fine, Jonathan P. Bradfield, Tõnu Esko, Ayush Giri, Mariaelisa Graff, Xiuqing Guo, Audrey E. Hendricks, Tugce Karaderi, Adelheid Lempradl, Adam E. Locke, Anubha Mahajan, Eirini Marouli, Suthesh Sivapalaratnam, Kristin L. Young, Tamuno AlfredMary F. Feitosa, Nicholas G.D. Masca, Alisa K. Manning, Carolina Medina-Gomez, Poorva Mudgal, Maggie C.Y. Ng, Alex P. Reiner, Sailaja Vedantam, Sara M. Willems, Thomas W. Winkler, Gonçalo Abecasis, Katja K. Aben, Dewan S. Alam, Sameer E. Alharthi, Matthew Allison, Philippe Amouyel, Folkert W. Asselbergs, Paul L. Auer, Beverley Balkau, Lia E. Bang, Inês Barroso, Lisa Bastarache, Marianne Benn, Sven Bergmann, Lawrence F. Bielak, Matthias Blüher, Michael Boehnke, Heiner Boeing, Anke R. Hammerschlag, Tinca J. Polderman

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Abstract

Genome-wide association studies (GWAS) have identified >250 loci for body mass index (BMI), implicating pathways related to neuronal biology. Most GWAS loci represent clusters of common, noncoding variants from which pinpointing causal genes remains challenging. Here we combined data from 718,734 individuals to discover rare and low-frequency (minor allele frequency (MAF) < 5%) coding variants associated with BMI. We identified 14 coding variants in 13 genes, of which 8 variants were in genes (ZBTB7B, ACHE, RAPGEF3, RAB21, ZFHX3, ENTPD6, ZFR2 and ZNF169) newly implicated in human obesity, 2 variants were in genes (MC4R and KSR2) previously observed to be mutated in extreme obesity and 2 variants were in GIPR. The effect sizes of rare variants are ~10 times larger than those of common variants, with the largest effect observed in carriers of an MC4R mutation introducing a stop codon (p.Tyr35Ter, MAF = 0.01%), who weighed ~7 kg more than non-carriers. Pathway analyses based on the variants associated with BMI confirm enrichment of neuronal genes and provide new evidence for adipocyte and energy expenditure biology, widening the potential of genetically supported therapeutic targets in obesity.

Original languageEnglish
Pages (from-to)26-41
Number of pages22
JournalNature Genetics
Volume50
Issue number1
Early online date22 Dec 2017
DOIs
Publication statusPublished - Jan 2018

Funding

A.P.R. was supported by R01DK089256. A.W.H. is supported by an NHMRC Practitioner Fellowship (APP1103329). A.K.M. received funding from NIH/NIDDK K01DK107836. A.T.H. is a Wellcome Trust Senior Investigator (WT098395) and an NIH Research Senior Investigator. A.P.M. is a Wellcome Trust Senior Fellow in Basic Biomedical Science (WT098017). A.R.W. is supported by the European Research Council (SZ-245 50371-GLUCOSEGENES-FP7-IDEAS-ERC). A.U.J. is supported by the American Heart Association (13POST16500011) and the NIH (R01DK089256, R01DK101855, K99HL130580). B.K. and E.K.S. were supported by the Doris Duke Medical Foundation, the NIH (R01DK106621), the University of Michigan Internal Medicine Department, Division of Gastroenterology, the University of Michigan Biological Sciences Scholars Program and the Central Society for Clinical Research. C.J.W. is supported by the NIH (HL094535, HL109946). D.J.L. is supported by R01HG008983 and R21DA040177. D.R.W. is supported by the Danish Diabetes Academy, which is funded by the Novo Nordisk Foundation. V. Salomaa has been supported by the Finnish Foundation for Cardiovascular Research. F.W.A. is supported by Dekker scholarship–Junior Staff Member 2014T001 Netherlands Heart Foundation and the UCL Hospitals NIHR Biomedical Research Centre. F.D. is supported by the UK MRC (MC_UU_12013/1-9). G.C.-P. received scholarship support from the University of Queensland and QIMR Berghofer. G.L. is funded by the Montreal Heart Institute Foundation and the Canada Research Chair program. H.Y. and T.M.F. are supported by the European Research Council (323195; SZ-245 50371-GLUCOSEGENES-FP7-IDEAS-ERC). I.M.H. is supported by BMBF (01ER1206) and BMBF (01ER1507m), the NIH and the Max Planck Society. J. Haessler was supported by NHLBI R21HL121422. J.N.H. is supported by NIH R01DK075787. K.E.N. was supported by the NIH (R01DK089256, R01HD057194, U01HG007416, R01DK101855) and the American Heart Association (13GRNT16490017). M.A.R. is supported by the Nuffield Department of Clinical Medicine Award, Clarendon Scholarship. M.I.M. is a Wellcome Trust Senior Investigator (WT098381) and an NIH Research Senior Investigator. M.D. is supported by the NCI (R25CA94880, P30CA008748). P.R.N. is supported by the European Research Council (AdG; 293574), the Research Council of Norway, the University of Bergen, the KG Jebsen Foundation and the Helse Vest, Norwegian Diabetes Association. P.T.E. is supported by the NIH (1R01HL092577, R01HL128914, K24HL105780), by an Established Investigator Award from the American Heart Association (13EIA14220013) and by the Foundation Leducq (14CVD01). P.L.A. was supported by NHLBI R21HL121422 and R01DK089256. P.L.H. is supported by the NIH (NS33335, HL57818). R.S.F. is supported by the NIH (T32GM096911). R.J.F.L. is supported by the NIH (R01DK110113, U01HG007417, R01DK101855, R01DK107786). S.A.L. is supported by the NIH (K23HL114724) and a Doris Duke Charitable Foundation Clinical Scientist Development Award. T.D.S. holds an ERC Advanced Principal Investigator award. T.A.M. is supported by an NHMRC Fellowship (APP1042255). T.H.P. received Lundbeck Foundation and Benzon Foundation support. V.T. is supported by a postdoctoral fellowship from the Canadian Institutes of Health Research (CIHR). Z.K. is supported by the Leenaards Foundation, the Swiss National Science Foundation (31003A-143914) and SystemsX. ch (51RTP0_151019). Part of this work was conducted using the UK Biobank resource (project numbers 1251 and 9072). A full list of acknowledgments appears in the Supplementary Note.

FundersFunder number
Doris Duke Medical Foundation
Nuffield Department of Clinical Medicine
UCL Hospitals NIHR Biomedical Research Centre
UK MRCMC_UU_12013/1-9
National Institutes of Health
National Heart, Lung, and Blood InstituteR01HD057194, K24HL105780, K23HL114724, U01HG007416, K99HL130580, R01HL117078, R01DK075787, R01HL128914, 13GRNT16490017, R21HL121422
National Cancer InstituteP30CA008748, R25CA94880, 293574
National Institute of Diabetes and Digestive and Kidney DiseasesR01DK110113, R01DK106621, R01DK089256, R01DK107786, K01DK107836, R01DK101855
Doris Duke Charitable FoundationAPP1042255
American Heart Association13POST16500011
University of Michigan
Stiftelsen Kristian Gerhard Jebsen
Central Society for Clinical ResearchR21DA040177, HL094535, R01HG008983, HL109946
Danish Diabetes Academy
Canadian Institutes of Health Research
European Research CouncilSZ-245 50371-GLUCOSEGENES-FP7-IDEAS-ERC
National Health and Medical Research CouncilAPP1103329
Fondation LeducqT32GM096911, 14CVD01, U01HG007417, HL57818, NS33335
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung31003A-143914, 51RTP0_151019
University of Queensland
Canada Research Chairs323195
Bundesministerium für Bildung und Forschung01ER1507m, 01ER1206
Max-Planck-Gesellschaft
Helse Vest
Universitetet i Bergen
Norges forskningsråd
Sydäntutkimussäätiö
Fondation Leenaards
Diabetesforbundet1R01HL092577, 13EIA14220013
Novo Nordisk Fonden
Fondation Institut de Cardiologie de Montréal

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