Chains and heterogens:
PDB Chain Sequences:
>1f0kA (A:) mmsgqgkrlmvmaggtgghvfpglavahhlmaqgwqvrwlgtadrmeadlvpkhgieidf irisglrgkgikaliaaplrifnawrqaraimkaykpdvvlgmggyvsgpgglaawslgi pvvlheqngiagltnkwlakiatkvmqafpgafpnaevvgnpvrtdvlalplpqqrlagr egpvrvlvvggsqgarilnqtmpqvaaklgdsvtiwhqsgkgsqqsveqayaeagqpqhk vtefiddmaaayawadvvvcrsgaltvseiaaaglpalfvpfqhkdrqqywnalplekag aakiieqpqlsvdavantlagwsretlltmaeraraasipdatervanevsrvaralehh hhhh
>1f0kA (A:) krlmvmaggtgghvfpglavahhlmaqgwqvrwlgtadrmeadlvpkhgieidfirisgl rgkgikaliaaplrifnawrqaraimkaykpdvvlgmggyvsgpgglaawslgipvvlhe qngiagltnkwlakiatkvmqafpgafpnaevvgnpvrtdvlalplpqqrlagregpvrv lvvggsqgarilnqtmpqvaaklgdsvtiwhqsgkgsqqsveqayaeagqpqhkvtefid dmaaayawadvvvcrsgaltvseiaaaglpalfvpfqhkdrqqywnalplekagaakiie qpqlsvdavantlagwsretlltmaeraraasipdatervanevsrvaral
>1f0kB (B:) mmsgqgkrlmvmaggtgghvfpglavahhlmaqgwqvrwlgtadrmeadlvpkhgieidf irisglrgkgikaliaaplrifnawrqaraimkaykpdvvlgmggyvsgpgglaawslgi pvvlheqngiagltnkwlakiatkvmqafpgafpnaevvgnpvrtdvlalplpqqrlagr egpvrvlvvggsqgarilnqtmpqvaaklgdsvtiwhqsgkgsqqsveqayaeagqpqhk vtefiddmaaayawadvvvcrsgaltvseiaaaglpalfvpfqhkdrqqywnalplekag aakiieqpqlsvdavantlagwsretlltmaeraraasipdatervanevsrvaralehh hhhh
>1f0kB (B:) krlmvmaggtgghvfpglavahhlmaqgwqvrwlgtadrmeadlvpkhgieidfirisgl rgkgikaliaaplrifnawrqaraimkaykpdvvlgmggyvsgpgglaawslgipvvlhe qngiagltnkwlakiatkvmqafpgafpnaevvgnpvrtdvlalplpqqrlagregpvrv lvvggsqgarilnqtmpqvaaklgdsvtiwhqsgkgsqqsveqayaeagqpqhkvtefid dmaaayawadvvvcrsgaltvseiaaaglpalfvpfqhkdrqqywnalplekagaakiie qpqlsvdavantlagwsretlltmaeraraasipdatervanevsrvaral