>2tunF (F:) observed residues (from ATOM records)
tpsdkpvahvvanpqaegqlqwlnrranallangvelrdnqlvvpseglyliysqvlfkg
qgcpsthvllthtisrivvsyqtkvnllsaikspcqretpegaeakpwyepiylggvfql
ekgdrlsaeinrpdyllfaesgqvyfgiial