I would like to gain (a) an up-to-date number for all human proteins, (b) the list of all human proteins (and their target classes). My thoughts after googling, searching forum (e.g.https://www.biostars.org/p/2619/) and reading literature are as follows:
I could use ChEMBL to get both a number and a list of all human targets (which have been explored), together with their target classes.
But what happens, when a human protein target has not been explored? I could parse UniProt for more human protein targets, but then I would probably get the different protein modifications of one human protein target, and also, I don't think that I can extract target classes from UniProt.
What would you suggest?
Many thanks for any suggestion! Leanna