>1z83B (B:) observed residues (from ATOM records) smeeklkktniifvvggpgsgkgtqcekivqkygythlstgdllrsevssgsargkklse imekgqlvpletvldmlrdamvakvntskgflidgyprevqqgeeferrigqptlllyvd agpetmtqrllkrgetsgrvddneetikkrletyykatepviafyekrgivrkvnaegsv dsvfsqvcthldall