Digestion of proteins containing defined C-C linkages
allowed are only the 20 "one-code aminoacid letters" in uppercase
Enter the accession number of the protein, which has to be analyzed. If you don't know this number, you can use the given links to find the database entry (=accession number) in the corresponding databases.
Advantage of using SwissProt or UniProt, is the availability of information about already identified or postulated C-C linkages.
Select the database, which exactly fits to the given accession number