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A systematic survey of loss-of-function variants in human protein-coding genes

Journal article published in 2012 by MacArthur Dg, X. Zheng, Y. Zhou, X. Zheng Bradley, S. Zöllner, M. Zilversmit, Daniel G. MacArthur, Pickrell Jk, Montgomery Sb, Albers Ca, Zhang Zd, Conrad Df, DePristo Ma, Handsaker Re, Suganthi Balasubramanian and other authors.
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Genome sequencing studies indicate that all humans carry many genetic variants predicted to cause loss of function (LoF) of protein-coding genes, suggesting unexpected redundancy in the human genome. Here we apply stringent filters to 2,951 putative LoF variants obtained from 185 human genomes to determine their true prevalence and properties. We estimate that human genomes typically contain ~100 genuine LoF variants with ~20 genes completely inactivated. We identify rare and likely deleterious LoF alleles, including 26 known and 21 predicted severe disease-causing variants, as well as common LoF variants in non-essential genes. We describe functional and evolutionary differences between LoF-tolerant and recessive disease genes, and a method for using these differences to prioritize candidate genes found in clinical sequencing studies.