>6cxtB (B:) SEQRES residues
mnfewtheqaelfehalrfgkelsaplqedngfprdnwnalgdfgyfglpipekyakdgs
gfdilttikiieglgqsctdtgllfagaahtfacsmpilehgsetlkhqllpdlatgrki
aanaiseasagsdisnlattaqkegdyyvlnggksyvtngsiadyyvvyattnkkhgylg
qtafvvprntpgisvgndyhklglrsaplnqvffdnctihkdyalgregqgarifaasmd
wercclfaifvgamqrdlnqcieyantrmqgdktisrfqavshriadmgvrlesarlmly
yaawqksqdvdntkavamsklaiseafvqsgidsirvhgalgyldegrvnnsikdalgsv
lfsgtsdiqrelicnrlgll