The qPhos database provides the curated quantitative phospho-proteome datasets in human tiss-ues and cell lines from published literatures to present the phospho-rylation dynamics under different conditions. In total, 3,537,533 quantification events for 199,071 sites on 18,402 proteins under 484 conditions are collected and inte-grated in the database.

The gutMEGA is a human gut metagenome database, which collated 182 literatures for human gut microbiome research. In total, 59,132 quantification events for 6,457 taxonomies at 7 different levels (kingdom, phylum, class, order, family, genus, and species) under 776 conditions were collected and integrated in the database, and the details about the samples and experiments were also curated.

The iCysMod is a protein cysteine modifications database that curated and hosted the published 8 types of cysteine modification events including 85,747 sites on 31,483 proteins in 48 eukaryotes.