or download this
$ wget -q http://www.uniprot.org/uniprot/Q94650.txt
$ bp_seqconvert.pl --from swiss --to fasta <Q94650.txt
...
ISFTVWDVGGQDKIRPLWRHYYSNTDGLIFVVDSNDRERIDDAREELHRMINEEELKDAI
ILVFANKQDLPNAMSAAEVTEKLHLNTIRERNWFIQSTCATRGDGLYEGFDWLTTHLNNA
K