Quantification and discovery of sequence determinants of protein-per-mRNA amount in 29 human tissues.

ABSTRACT: Despite their importance in determining protein abundance, a comprehensive catalogue of sequence features controlling protein-to-mRNA (PTR) ratios and a quantification of their effects are still lacking. Here, we quantified PTR ratios for 11,575 proteins across 29 human tissues using matched transcriptomes and proteomes. We estimated by regression the contribution of known sequence determinants of protein synthesis and degradation in addition to 45 mRNA and 3 protein sequence motifs that we found by association testing. While PTR ratios span more than 2 orders of magnitude, our integrative model predicts PTR ratios at a median precision of 3.2-fold. A reporter assay provided functional support for two novel UTR motifs, and an immobilized mRNA affinity competition-binding assay identified m

SUBMITTER: Eraslan B 

PROVIDER: S-EPMC6379048 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature