>1yzlA (A:) observed residues (from ATOM records)
ksslfkiillgdggvgksslmnryvtnkfdsqlfhtigveflnkdlevdghfvtmqiwdt
agqerfrslrtpfyrgsdcclltfsvddsqsfqnlsnwkkefiyyadvkepesfpfvilg
nktdikerqvsteeaqawckdngdypyfetsakdstnvaaafeeavrrilat