>3nzw2 (2:) observed residues (from ATOM records) tsimavtfkdgvilgadsrtttgayianrvtdkltrvhdkiwccrsgsaadtqaiadivq yhlelytsqygtpstetaasvfkelcyenkdnltagiivagyddknkgevytiplggsvh klpyaiagsgstfiygycdknfrenmskeetvdfikhslsqaikwdgssggvirmvvlta agverlifypdeyeql