Chains and heterogens:
PDB Chain Sequences:
>2py7X (X:) mrvnngltpqeleaygisdvhdivynpsydllyqeeldpsltgyergvltnlgavavdtg iftgrspkdkyivrddttrdtfwwadkgkgkndnkplspetwqhlkglvtrqlsgkrlfv vdafcganpdtrlsvrfitevawqahfvknmfirpsdeelagfkpdfivmngakctnpqw keqglnsenfvafnltermqliggtwyggemksgmfsmmnyllplkgiasmhcsanvgek gdvavffglsgtgkttlstdpkrrligddehgwdddgvfnfeggcyaktiklskeaepei ynairrdallenvtvredgtidfddgsktentrvsypiyhidnivkpvskaghatkvifl tadafgvlppvsrltadqtqyhflsgftaklagtergiteptptfsacfgaaflslhptq yaevlvkrmqaagaqaylvntgwngtgkrisikdtraiidailngsldnaetftlpmfnl aiptelpgvdtkildprntyaspeqwqekaetlaklfidnfdkytdtpagaalvaagpkl
>2py7X (X:) gltpqeleaygisdvhdivynpsydllyqeeldpsltgyergvltnlgavavdtgiftgr spkdkyivrddttrdtfwwadkgkgkndnkplspetwqhlkglvtrqlsgkrlfvvdafc ganpdtrlsvrfitevawqahfvknmfirpsdeelagfkpdfivmngakctnpqwkeqgl nsenfvafnltermqliggtwyggemksgmfsmmnyllplkgiasmhcsanvgekgdvav ffglsgtgkttlstdpkrrligddehgwdddgvfnfeggcyaktiklskeaepeiynair rdallenvtvredgtidfddgsktentrvsypiyhidnivkpvskaghatkvifltadaf gvlppvsrltadqtqyhflsgftaklagtergiteptptfsacfgaaflslhptqyaevl vkrmqaagaqaylvntgwngtgkrisikdtraiidailngsldnaetftlpmfnlaipte lpgvdtkildprntyaspeqwqekaetlaklfidnfdkytdtpagaalvaagpkl