>3lt4B (B:) observed residues (from ATOM records)
nedicfiagigdtngygwgiakelskrnvkiifgiwppvynifmknykngkfdndmiidk
dkkmnildmlpfdasfdtandideetknnkrynmlqnytiedvanlihqkygkinmlvhs
lanakevqkdllntsrkgyldalskssyslislckyfvnimkpqssiisltyhasqkvvp
gygggmssakaalesdtrvlayhlgrnynirintisagplksraatainkltfidyaiey
sekyaplrqkllstdigsvasfllsresraitgqtiyvdnglnimflpd