>2z3mB (B:) observed residues (from ATOM records)
rlvqlsrhsiafpspegalrepngllalggdlsparllmayqrgifpwfspgdpilwwsp
dpravlwpeslhisrsmkrfhkrspyrvtmnyafgqviegcasdreegtwitrgvveayh
rlhelghahsievwredelvggmygvaqgtlfcgesmfsrmenasktallvfceefighg
gklidcqvlndhtaslgaceiprrdylnylnqmrlgrlpnnfwvprclfsp