Chains and heterogens:
PDB Chain Sequences:
>2pxzX (X:) mrvnngltpqeleaygisdvhdivynpsydllyqeeldpsltgyergvltnlgavavdtg iftgrspkdkyivrddttrdtfwwadkgkgkndnkplspetwqhlkglvtrqlsgkrlfv vdafcganpdtrlsvrfitevawqahfvknmfirpsdeelagfkpdfivmngakctnpqw keqglnsenfvafnltermqliggtwyggemkkgmfsmmnyllplkgiasmhcsanvgek gdvavffglsgtgkttlstdpkrrligddehgwdddgvfnfeggcyaktiklskeaepei ynairrdallenvtvredgtidfddgsktentrvsypiyhidnivkpvskaghatkvifl tadafgvlppvsrltadqtqyhflsgftaklagtergiteptptfsacfgaaflslhptq yaevlvkrmqaagaqaylvntgwngtgkrisikdtraiidailngsldnaetftlpmfnl aiptelpgvdtkildprntyaspeqwqekaetlaklfidnfdkytdtpagaalvaagpkl
>2pxzX (X:) pqeleaygisdvhdivynpsydllyqeeldpsltgyergvltnlgavavdtgiftgrspk dkyivrddttrdtfwwadkgkgkndnkplspetwqhlkglvtrqlsgkrlfvvdafcgan pdtrlsvrfitevawqahfvknmfirpsdeelagfkpdfivmngakctnpqwkeqglnse nfvafnltermqliggtwyggemkkgmfsmmnyllplkgiasmhcsanvgekgdvavffg lsgtgkttlstdpkrrligddehgwdddgvfnfeggcyaktiklskeaepeiynairrda llenvtvredgtidfddgsktentrvsypiyhidnivkpvskaghatkvifltadafgvl ppvsrltadqtqyhflsgftaklageptptfsacfgaaflslhptqyaevlvkrmqaaga qaylvntgwngtgkrisikdtraiidailngsldnaetftlpmfnlaiptelpgvdtkil dprntyaspeqwqekaetlaklfidnfdkytdtpagaalvaagpkl