>5t64B (B:) observed residues (from ATOM records)
arcrvcgdtvdefldlgrqplsdrfltpadtdgeffyrlavgrchacgmvqlteevprhl
mhssgssvmrehfakvaqrllateltgadpfvveigcndgimlravheagvrhlgfepsa
gvaevarsrgvrvrteffekatatavresegpadviyaantmchipylesvfqgadallg
pdgvvvfedpylgdivaktsfdqiydehfylfsagsvaamaerfgfelvdverlpvhgge
vrytlarrgartpteavgrllaeereqglddlatlrtfaanvhtvrdelvalltrlraeg
hrvvgygataksatvtnfcgigpdlvsfvcdttpgkqhrltpgkhlpvrpaeafadpypd
yallfawnhadeimakeqefrqaggrwilyvpevrvl