>4tr9A (A:) observed residues (from ATOM records)
eymnapkklpadvaeelattaqklvqagkgilaadestqtikkrfdniklentienrasy
rdllfgtkglgkfisgailfeetlfqkneagvpmvnllhneniipgikvdkglvnipctd
eekstqgldglaerckeyykagarfakwrtvlvidtakgkptdlsihetawglaryasic
qqnrlvpivepeiladgphsievcavvtqkvlscvfkalqengvllegallkpnmvtagy
ectaktttqdvgfltvrtlrrtvppalpgvvflsggqseeeasvnlnsinalgphpwalt
fsygralqasvlntwqgkkenvakarevllqraeanslatygkykgg