Under the guidance of Chromosome-Centric human proteome project (C-HPP),we conducted a systematic survey to the expression status of genes located on human chromosome 20 (Chr.20) in three cancer tissues,gastric,colon and liver,and their representative cell lines.We have globally profiled proteomes in these samples and acquired the correspondent mRNA,and generated the corresponding datasets of CCPD2012 and CCPD2013.Based on the two datasets,about 60％ of Chr.20 genes were confirmed with protein products,and 95％ with transcriptions.