>3stfA (A:) observed residues (from ATOM records)
mdikinditlgnnspfvlfgginvlesldstlqtcahyvevtrklgipyifkasfdkanr
ssihsyrgvgleeglkifekvkaefgipvitdvhephqcqpvaevcdviqlpaflarqtd
lvvamaktgnvvnikkpqflspsqmknivekfheagngklilcergssfgydnlvvdmlg
fgvmkqtcgnlpvifdvthslqgrraqaldlalagmatrlaglfleslhlledflirika
lddliksqpi