# Submit this list to the download facility and get information such as number of chains, symmetry, etc ... 5xxa_1 3fad_2 4qdn_2 2ikb_2 2dqa_1 1hfy_1 2fbd_3 4b4e_1 1xju_3 2oqo_1 4evx_3 3hde_2 2anx_1