We use the complex names given in the literature including synonyms. An example is the eukaryotic chaperonin CCT (chaperonin containing TCP-1), that is also well known as TRiC (TCP-1 ring complex). If no name is found for a protein complex, we define one which is usually composed of gene names of the complex, e.g. 'BRCA1-RAD51 complex' or 'Ubiquitin E3 ligase (FBXW7, CUL1, SKP1A, RBX1)'.