Exome sequencing of 20,791 cases of type 2 diabetes and 24,440 controls

  • , Jason Flannick (Lead / Corresponding author)
  • , Josep M. Mercader
  • , Christian Fuchsberger
  • , Miriam S. Udler
  • , Anubha Mahajan
  • , Jennifer Wessel
  • , Tanya M. Teslovich
  • , Lizz Caulkins
  • , Ryan Koesterer
  • , Francisco Barajas-Olmos
  • , Thomas W. Blackwell
  • , Eric Boerwinkle
  • , Jennifer A. Brody
  • , Federico Centeno-Cruz
  • , Ling Chen
  • , Siying Chen
  • , Cecilia Contreras-Cubas
  • , Emilio Córdova
  • , Adolfo Correa
  • Maria Cortes, Ralph A. DeFronzo, Lawrence Dolan, Kimberly L. Drews, Amanda Elliott, James S. Floyd, Stacey Gabriel, Maria Eugenia Garay-Sevilla, Humberto García-Ortiz, Myron Gross, Sohee Han, Nancy L. Heard-Costa, Anne U. Jackson, Marit E. Jørgensen, Hyun Min Kang, Megan Kelsey, Bong-Jo Kim, Heikki A. Koistinen, Johanna Kuusisto, Joseph B. Leader, Allan Linneberg, Ching-Ti Liu, Jianjun Liu, Valeriya Lyssenko, Alisa K. Manning, Anthony Marcketta, Juan Manuel Malacara-Hernandez, Andrew D. Morris, Colin N. A. Palmer, Laura J. Scott, Andrew P. Morris

Research output: Contribution to journalArticlepeer-review

228 Citations (Scopus)
230 Downloads (Pure)

Abstract

Protein-coding genetic variants that strongly affect disease risk can yield relevant clues to disease pathogenesis. Here we report exome-sequencing analyses of 20,791 individuals with type 2 diabetes (T2D) and 24,440 non-diabetic control participants from 5 ancestries. We identify gene-level associations of rare variants (with minor allele frequencies of less than 0.5%) in 4 genes at exome-wide significance, including a series of more than 30 SLC30A8 alleles that conveys protection against T2D, and in 12 gene sets, including those corresponding to T2D drug targets (P = 6.1 × 10-3) and candidate genes from knockout mice (P = 5.2 × 10-3). Within our study, the strongest T2D gene-level signals for rare variants explain at most 25% of the heritability of the strongest common single-variant signals, and the gene-level effect sizes of the rare variants that we observed in established T2D drug targets will require 75,000-185,000 sequenced cases to achieve exome-wide significance. We propose a method to interpret these modest rare-variant associations and to incorporate these associations into future target or gene prioritization efforts.

Original languageEnglish
Pages (from-to)71-76
Number of pages6
JournalNature
Volume570
Issue number7759
Early online date22 May 2019
DOIs
Publication statusPublished - Jun 2019

ASJC Scopus subject areas

  • General

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