I wonder why I can't find any database for enzymes composed by multiple proteins as separate entities.
I'll explain better: the OST complex is a multiple-units enzyme composed by 6-7 proteins, like OST4, STT3A or STT3B, RPN1, DAD1, etc... If I look for any of these proteins in Uniprot, I get a nice entry for each: for example, if you look at STT3A you get a lot of informations, including a description that explains that this protein partecipates to the OST complex.
However, if you look for 'OST complex' in uniprot, there is not a separate entity for this multiple-units enzyme... I wonder if you know of a database where complex enzymes are described, or if you have faced this problem before.