>1zn2A (A:) observed residues (from ATOM records)
akptvfvvdddmsvreglrnllrsagfevetfdcastflehrrpeqhgclvldmrmpgms
gielqeqltaisdgipivfitahgdipmtvramkagaieflpkpfeeqalldaieqglql
naerrqaretqdqleqlfssltgreqqvlqltirglmnkqiagelgiaevtvkvhrhnim
qklnvrslanlvhlveky