Chains and heterogens:
PDB Chain Sequences:
>1mckA (A:) esaltqppsasgslgqsvtisctgtssdvggynyvswyqqhagkapkviiyevnkrpsgv pdrfsgsksgntasltvsglqaedeadyycssyegsdnfvfgtgtkvtvlgqpkanptvt lfppsseelqankatlvclisdfypgavtvawkadgspvkagvettkpskqsnnkyaass ylsltpeqwkshrsyscqvthegstvektvaptecs
>1mckA (A:) psaltqppsasgslgqsvtisctgtssdvggynyvswyqqhagkapkviiyevnkrpsgv pdrfsgsksgntasltvsglqaedeadyycssyegsdnfvfgtgtkvtvlgqpkanptvt lfppsseelqankatlvclisdfypgavtvawkadgspvkagvettkpskqsnnkyaass ylsltpeqwkshrsyscqvthegstvektvaptecs
>1mckB (B:) esaltqppsasgslgqsvtisctgtssdvggynyvswyqqhagkapkviiyevnkrpsgv pdrfsgsksgntasltvsglqaedeadyycssyegsdnfvfgtgtkvtvlgqpkanptvt lfppsseelqankatlvclisdfypgavtvawkadgspvkagvettkpskqsnnkyaass ylsltpeqwkshrsyscqvthegstvektvaptecs
>1mckB (B:) psaltqppsasgslgqsvtisctgtssdvggynyvswyqqhagkapkviiyevnkrpsgv pdrfsgsksgntasltvsglqaedeadyycssyegsdnfvfgtgtkvtvlgqpkanptvt lfppsseelqankatlvclisdfypgavtvawkadgspvkagvettkpskqsnnkyaass ylsltpeqwkshrsyscqvthegstvektvaptecs