>1htrB (B:) SEQRES residues
svtyepmaymdaayfgeisigtppqnflvlfdtgssnlwvpsvycqsqactshsrfnpse
sstystngqtfslqygsgsltgffgydtltvqsiqvpnqefglsenepgtnfvyaqfdgi
mglaypalsvdeattamqgmvqegaltspvfsvylsnqqgssggavvfggvdsslytgqi
ywapvtqelywqigieefliggqasgwcsegcqaivdtgtslltvpqqymsallqatgaq
edeygqflvncnsiqnlpsltfiingvefplppssyilsnngyctvgveptylssqngqp
lwilgdvflrsyysvydlgnnrvgfataa