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Whole-genome sequencing study of serum peptide levels: the Atherosclerosis Risk in Communities study.


ABSTRACT: Oligopeptides are important markers of protein metabolism, as they are cleaved from larger polypeptides and proteins. Genetic association studies may help elucidate their origin and function. In 1,552 European Americans and 1,872 African Americans of the Atherosclerosis Risk in Communities study, we performed whole-genome and whole-exome sequencing and measured serum levels of 25 peptides. Common variants (minor allele frequency?>?5%) were analysed individually. We grouped low-frequency variants (minor allele frequency???5%) by a genome-wide sliding window using region-based aggregate tests. Furthermore, low-frequency regulatory variants were grouped by gene, as were functional coding variants. All analyses were performed separately in each ancestry group and then meta-analysed. We identified 22 common variant associations with peptide levels (P-value?

SUBMITTER: de Vries PS 

PROVIDER: S-EPMC5886054 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature

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Whole-genome sequencing study of serum peptide levels: the Atherosclerosis Risk in Communities study.

de Vries Paul S PS   Yu Bing B   Feofanova Elena V EV   Metcalf Ginger A GA   Brown Michael R MR   Zeighami Atefeh L AL   Liu Xiaoming X   Muzny Donna M DM   Gibbs Richard A RA   Boerwinkle Eric E   Morrison Alanna C AC  

Human molecular genetics 20170901 17


Oligopeptides are important markers of protein metabolism, as they are cleaved from larger polypeptides and proteins. Genetic association studies may help elucidate their origin and function. In 1,552 European Americans and 1,872 African Americans of the Atherosclerosis Risk in Communities study, we performed whole-genome and whole-exome sequencing and measured serum levels of 25 peptides. Common variants (minor allele frequency > 5%) were analysed individually. We grouped low-frequency variants  ...[more]

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