# Submit this list to the download facility and get information such as number of chains, symmetry, etc ... 1r1k_2 2r40_2 1r20_2 3ixp_1 1xdk_3 1xvp_3 1xvp_4 3a9e_2 1xls_6 1xls_7 4j5w_1 4j5x_1 2hwr_1 2hwq_1