Chains and heterogens:
PDB Chain Sequences:
>2mpaH (H:) evnlqqsgtvlarpgasvrmsckasgysftsywlhwikqrpgqglewiggiypgnrdtry tqrfkdkakltavtsantaymelssltnedsavyycsiiyfdyadfimdywgqgttvtvs sakttapsvyplapvcgdttgssvtlgclvkgyfpepvtltwnsgslssgvhtfpavlqs dlytlsssvtvtsstwpsqsitcnvahpasstkvdkkieprgpt
>2mpaL (L:) divmtqtplslpvslgdkasiscrssqalvhsngntylhwylqkpgqspklliykvsnrf sgvpdrfsgsgsgtdftlkisrveaedlgvffcsqsthvprtfgggtkleikradaaptv sifppsseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysm sstltltkdeyerhnsytceathktstspivksfnrnec