>3tzfB (B:) observed residues (from ATOM records)
mhltargltldlsrpqvmgilnvtpdsfsdggchnnldqalqhaqrmlsagatlidigge
strpgevseqeeldrvvpvvealaqrfdvwlsvdtskaavitesahagahlindirslqe
pgaleaaaktglpvclmhmqgqpknmqhspyyddlmtdinrffqhhiercvaagiaknkl
lldpgfgfgknlahnyqllahlselhhfelpllvgmsrksmvgqllnvppqqrvigsvac
aviaamqgaqiirvhdvketveamciveatrsak