Chains and heterogens:
PDB Chain Sequences:
>1mn2A (A:) avcpdgtrvshaaccafiplaqdlqetifqnecgqdahevirltfhdaiaisrsqgpkag ggadgsmllfptvepnfsanngiddsvnnlipfmqkhntisaadlvqfagavalsncpga prleflagrpnktiaavdglipepqdsvtkilqrfedaggftpfevvsllashsvarank vdqtidaapfdstpftfdtqvflevllkgvgfpgsanntgevasplplgsgsdtgemrlq sdfalahdprtaciwqgfvneqafmaasfraamsklavlghnrnslidcsdvvpvpkpat gqpamfpastgpqdlelscpserfptlttqpgasqsliahcpdgsmscpgvqfngpa