The VaxiJen server [27 ] is implemented in Perl, with an interface written in HTML. VaxiJen identifies bacterial, viral and tumour antigens using three different models, derived in the present study. Protein sequences are uploaded as single or multiple files in plain or fasta format respectively. The results page reports antigen probability (as a fraction of unity) for each protein and a statement of antigen status ("probable Antigen" versus "Probable Non-Antigen").
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