>3tnnL (L:) observed residues (from ATOM records) altqpasvsgspgqsitisctgtssdvgsynfvswyqqhpgkapklmiyevserpsgisn rfsgsksgntasltisglqaedeadyycssyagsttfrvfgggtkltvrgqpkaapsvtl fppsseelqankatlvclisdfypgavtvawkadsspvkagvetttpskqsnnkyaassy lsltpeqwkshrsyscqvthegstvektvapt