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