UniProt: protein sequence and functional information
hpr: human protein atlas shows expression and localization of proteins in a large variety of normal human tissues, cancer cells and cell lines with the aid of immunohistochemistry (IHC) images and immunofluorescence (IF) confocal microscopy images.
InterPro: a database of protein families, domains, repeats and sites in which identifiable features found in known proteins can be applied to new protein sequences.
Phosphorylation
NetworKIN: Browse/search and investigate predictions made using the NetworKIN algorithm, a method for predicting in vivo kinase-substrate relationships
Phospho.ELM: A database of S/TZ/Y phosphorylation sites
NetPhosK: kinase specific eukaryotic protein phosphoylation sites