Conserved beta cell marker genes identified in rat beta cells, alpha cells, liver and brain tissue using quantitative proteomics.

Data represent relative molar amounts of proteins coded by beta cell marker genes that could be detected in label-free alternate-scanning LC-MS proteomics of unfractionated cells and tissues (mean of triplicate injections of 3 biological replicates, total CV%<20% [9]). For comparison avFC and rank of mRNA transcript (array) are compared to protein abundance (fold above lower limit of quantification, LLQ) and rank (see Methods and reference [9] for details).