>2a7sF (F:) observed residues (from ATOM records)
idihttagklaelhkrreeslhpvgedavekvhakgkltareriyalldedsfveldala
khrstnfnlgekrplgdgvvtgygtidgrdvcifsqdatvfggslgevygekivkvqela
iktgrpligindgagariqegvvslglysrifrnnilasgvipqislimgaaagghvysp
altdfvimvdqtsqmfitgpdviktvtgeevtmeelggahthmaksgtahyaasgeqdaf
dyvrellsylppnnstdapryqaaaptgpieenltdedleldtlipdspnqpydmhevit
rllddefleiqagyaqnivvgfgridgrpvgivanqpthfagcldinasekaarfvrtcd
cfnipivmlvdvpgflpgtdqeyngiirrgakllyaygeatvpkitvitrkayggaycvm
gskdmgcdvnlawptaqiavmgasgavgfvyrqqlaeaaangedidklrlrlqqeyedtl
vnpyvaaergyvdavippshtrgyigtalrllerkiaqlppkkhgnvpl