Database on Demand is a web-based database pre-processing tool that will generate custom FASTA formatted sequence databases according to a set of user-selectable criteria using the commonly used UniProt/SWISS-PROT and UniProt/TrEMBL databases as source.
The UniProt DAS server allows researchers to show their research results, for example identified peptides or signal sequences, on the UniProt reference sequence server, in the context of UniProtKB/Swiss-Prot annotation.