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Human serum proteome profoundly overlaps with genetic signatures of disease

Emilsson, V.; Gudmundsdottir, V.; Ilkov, M.; Staley, J. R.; Gudjonsson, A.; Gudmundsson, E. F.; Launer, L. J.; Lindeman, J. H.; Morton, N. M.; Aspelund, T.; Lamb, J. R.; Jennings, L. L.; Gudnason, V.

2020-05-08 genetics
10.1101/2020.05.06.080440 bioRxiv
Show abstract

Circulating proteins are prognostic for human outcomes including cancer, heart failure, brain trauma and brain amyloid plaque burden. A deep serum proteome survey recently revealed close associations of serum protein networks and common diseases. The present study reveals unprecedented number of individual serum proteins that overlap genetic signatures of diseases emanating from different tissues of the body. Here, 54,469 low-frequency and common exome-array variants were compared with 4782 protein measurements in the serum of 5343 individuals of the deeply annotated AGES Reykjavik cohort. Using a study-wide significant threshold, 2019 independent exome array variants affecting levels of 2135 serum proteins were identified. These variants overlapped genetic loci for hundreds of complex disease traits, emphasizing the emerging role for serum proteins as biomarkers of and potential causative agents of multiple diseases.

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