>1z6rB (B:) observed residues (from ATOM records)
qikqtnagavyrlidqlgpvsridlsrlaqlapasitkivhemleahlvqelglvvetea
whylslrisrgeiflalrdlssklvveesqelalkddlplldriishidqffirhqkkle
rltsiaitlpgiidtengivhrmpfyedvkemplgealeqhtgvpvyiqhdisawtmaea
lfgasrgardviqvvidhnvgagvitdghllhagssslveightqvdpygkrcycgnhgc
letiasvdsilelaqlrlnqsmssmlhgqpltvdslcqaalrgdllakdiitgvgahvgr
ilaimvnlfnpqkiligsplskaadilfpvisdsirqqalpaysqhisvestqfsnqgtm
agaalvkdamyngsllirllqg