Chains and heterogens:
PDB Chain Sequences:
>2sim_ (-) tveksvvfkaegehftdqkgntivgsgsggttkyfripamcttskgtivvfadarhntas dqsfidtaaarstdggktwnkkiaiyndrvnsklsrvmdptcivaniqgretilvmvgkw nnndktwgayrdkapdtdwdlvlykstddgvtfskvetnihdivtkngtisamlggvgsg lqlndgklvfpvqmvrtknittvlntsfiystdgitwslpsgycegfgsenniiefnasl vnnirnsglrrsfetkdfgktwtefppmdkkvdnrnhgvqgstitipsgnklvaahssaq nknndytrsdislyahnlysgevkliddfypkvgnasgagysclsyrknvdketlyvvye angsiefqdlsrhlpviksyn