Chains and heterogens:
PDB Chain Sequences:
>12e8H (H:) evqlqqsgaevvrsgasvklsctasgfnikdyyihwvkqrpekglewigwidpeigdtey vpkfqgkatmtadtssntaylqlssltsedtavyycnaghdydrgrfpywgqgtlvtvsa akttppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsd lytlsssvtvpsstwpsetvtcnvahpasstkvdkkivprd
>12e8L (L:) divmtqsqkfmstsvgdrvsitckasqnvgtavawyqqkpgqspklmiysasnrytgvpd rftgsgsgtdftltisnmqsedladyfcqqyssypltfgagtklelkradaaptvsifpp sseqltsggasvvcflnnfypkdinvkwkidgserqngvlnsatdqdskdstysmsstlt ltkdeyerhnsytceathktstspivksfnrnec
>12e8M (M:) divmtqsqkfmstsvgdrvsitckasqnvgtavawyqqkpgqspklmiysasnrytgvpd rftgsgsgtdftltisnmqsedladyfcqqyssypltfgagtklelkradaaptvsifpp sseqltsggasvvcflnnfypkdinvkwkidgserqngvlnsatdqdskdstysmsstlt ltkdeyerhnsytceathktstspivksfnrnec
>12e8P (P:) evqlqqsgaevvrsgasvklsctasgfnikdyyihwvkqrpekglewigwidpeigdtey vpkfqgkatmtadtssntaylqlssltsedtavyycnaghdydrgrfpywgqgtlvtvsa akttppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsd lytlsssvtvpsstwpsetvtcnvahpasstkvdkkivprd