Proteogenomic analysis of the differential stability of cardiac protein isoforms
Juber, M.; Binti, S.; Pandi, B.; Lau, E.; Lam, M. P. Y.
Show abstract
Alternative splicing is an important regulatory layer in gene expression, but knowledge on the isoform protein molecules continue to lag their canonical counterparts. An open question is whether alternative protein isoforms feature different half-life than the canonical counterpart, which could indicate differential usage and functional diversification. Here we combined a proteogenomics approach with heavy water-based protein turnover analysis to survey 24 pairs of canonical-alternative protein isoforms in the mouse heart. The results provide a reference on their numerical half-life and also reveal widespread differences in isoform stability.
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