>2cz1B (B:) observed residues (from ATOM records)
mdgvhdlagvqgfgkvphtvnadigptfhaewehlpyslmfagvaelgafsvdevryvve
rmeprhymmtpyyeryvigvatlmvekgiltqdeleslaggpfplsrpsesegrpapvet
ttfevgqrvrvrdeyvpghirmpaycrgrvgtishrttekwpfpdaighgrndageepty
hvkfaaeelfgsdtdggsvvvdlfegylepa