# Submit this list to the download facility and get information such as number of chains, symmetry, etc ... 3iwt_2 3pzy_1 4twg_2 3oi9_1 4xcw_2 1y5e_1 1di6_1 3mch_1 1o8q_1 1o8o_1 1uuy_1 1uux_1 1eav_2 1o8n_1 3k6a_1 1jlj_1 3mci_1 3tcr_2