Chains and heterogens:
PDB Chain Sequences:
>1os1A (A:) mrvnngltpqeleaygisdvhdivynpsydllyqeeldpsltgyergvltnlgavavdtg iftgrspkdkyivrddttrdtfwwadkgkgkndnkplspetwqhlkglvtrqlsgkrlfv vdafcganpdtrlsvrfitevawqahfvknmfirpsdeelagfkpdfivmngakctnpqw keqglnsenfvafnltermqliggtwyggemkkgmfsmmnyllplkgiasmhcsanvgek gdvavffglsgtgkttlstdpkrrligddehgwdddgvfnfeggcyaktiklskeaepei ynairrdallenvtvredgtidfddgsktentrvsypiyhidnivkpvskaghatkvifl tadafgvlppvsrltadqtqyhflsgftaklagtergiteptptfsacfgaaflslhptq yaevlvkrmqaagaqaylvntgwngtgkrisikdtraiidailngsldnaetftlpmfnl aiptelpgvdtkildprntyaspeqwqekaetlaklfidnfdkytdtpagaalvaagpkl
>1os1A (A:) nngltpqeleaygisdvhdivynpsydllyqeeldpsltgyergvltnlgavavdtgift grspkdkyivrddttrdtfwwadkgkgkndnkplspetwqhlkglvtrqlsgkrlfvvda fcganpdtrlsvrfitevawqahfvknmfirpsdeelagfkpdfivmngakctnpqwkeq glnsenfvafnltermqliggtwyggemkkgmfsmmnyllplkgiasmhcsanvgekgdv avffglsgtgkttlstdpkrrligddehgwdddgvfnfeggcyaktiklskeaepeiyna irrdallenvtvredgtidfddgsktentrvsypiyhidnivkpvskaghatkvifltad afgvlppvsrltadqtqyhflsgftaklagtergiteptptfsacfgaaflslhptqyae vlvkrmqaagaqaylvntgwngtgkrisikdtraiidailngsldnaetftlpmfnlaip telpgvdtkildprntyaspeqwqekaetlaklfidnfdkytdtpagaalvaagpkl