Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0899-9007(01)00614-1
Dietary Proteins free resource MedlinePlus Health Information https://medlineplus.gov/dietaryproteins.html
free resource NCI CPTAC Assay Portal https://assays.cancer.gov/CPTAC-1511