Chains and heterogens:
PDB Chain Sequences:
>2xi2A (A:) smsyswtgalvtpcaaeeqklpinalsnsllrhhnlvysttsrsacqrqkkvtfdrlqvl dshyhdvlkevkaaaskvkanllsveeacsltpphsakskfgygakdvrcharkavahin svwkdlledsvtpidttimaknevfcvqpekggrkparlivfpdlgvrvcekmalydvvs klplavmgssygfqyspgqrveflvqawkskktpmgfsydtrcfdstvtesdirteeaiy qccdldpqarvaikslterlyvggpltnsrgencgyrrcrasgvlttscgntltcyikar aacraaglqdctmlvcgddlvvicesagvqedaaslrafteamtrysappgdppqpeydl elitscssnvsvahdgagkrvyyltrdpttplaraawetarhtpvnswlgniimfaptlw armilmthffsvliardqleqalnceiygacysiepldlppiiqrlhglsafslhsyspg einrvaaclrklgvpplrawrhrarsvrarllsrggraaicgkylfnwavrtklkltpia aagrldlsgwftagysggdiyhsvsharprhhhhhh
>2xi2A (A:) smsyswtgalvtpcaaeeqklpinalsnsllrhhnlvysttsrsacqrqkkvtfdrlqvl dshyhdvlkevkaaaskvkanllsveeacsltpphsakskfgygakdvrcharkavahin svwkdlledsvtpidttimaknevfcvqpekggrkparlivfpdlgvrvcekmalydvvs klplavmgssygfqyspgqrveflvqawkskktpmgfsydtrcfdstvtesdirteeaiy qccdldpqarvaikslterlyvggpltnsrgencgyrrcrasgvlttscgntltcyikar aacraaglqdctmlvcgddlvvicesagvqedaaslrafteamtrysappgdppqpeydl elitscssnvsvahdgagkrvyyltrdpttplaraawetarhtpvnswlgniimfaptlw armilmthffsvliardqleqalnceiygacysiepldlppiiqrlhglsafslhsyspg einrvaaclrklgvpplrawrhrarsvrarllsrggraaicgkylfnwavrtklkltpia aagrldlsgwftagysggdiyh
>2xi2B (B:) smsyswtgalvtpcaaeeqklpinalsnsllrhhnlvysttsrsacqrqkkvtfdrlqvl dshyhdvlkevkaaaskvkanllsveeacsltpphsakskfgygakdvrcharkavahin svwkdlledsvtpidttimaknevfcvqpekggrkparlivfpdlgvrvcekmalydvvs klplavmgssygfqyspgqrveflvqawkskktpmgfsydtrcfdstvtesdirteeaiy qccdldpqarvaikslterlyvggpltnsrgencgyrrcrasgvlttscgntltcyikar aacraaglqdctmlvcgddlvvicesagvqedaaslrafteamtrysappgdppqpeydl elitscssnvsvahdgagkrvyyltrdpttplaraawetarhtpvnswlgniimfaptlw armilmthffsvliardqleqalnceiygacysiepldlppiiqrlhglsafslhsyspg einrvaaclrklgvpplrawrhrarsvrarllsrggraaicgkylfnwavrtklkltpia aagrldlsgwftagysggdiyhsvsharprhhhhhh
>2xi2B (B:) smsyswtgalvtpcaaeeqklpinalsnsllrhhnlvysttsrsacqrqkkvtfdrlqvl dshyhdvlkevkaaaskvkanllsveeacsltpphsakskfgygakdvrcharkavahin svwkdlledsvtpidttimaknevfcvqpekggrkparlivfpdlgvrvcekmalydvvs klplavmgssygfqyspgqrveflvqawkskktpmgfsydtrcfdstvtesdirteeaiy qccdldpqarvaikslterlyvggpltnsrgencgyrrcrasgvlttscgntltcyikar aacraaglqdctmlvcgddlvvicesagvqedaaslrafteamtrysappgdppqpeydl elitscssnvsvahdgagkrvyyltrdpttplaraawetarhtpvnswlgniimfaptlw armilmthffsvliardqleqalnceiygacysiepldlppiiqrlhglsafslhsyspg einrvaaclrklgvpplrawrhrarsvrarllsrggraaicgkylfnwavrtklkltpia aagrlgwftagysggdiyh
>2xi2C (C:) smsyswtgalvtpcaaeeqklpinalsnsllrhhnlvysttsrsacqrqkkvtfdrlqvl dshyhdvlkevkaaaskvkanllsveeacsltpphsakskfgygakdvrcharkavahin svwkdlledsvtpidttimaknevfcvqpekggrkparlivfpdlgvrvcekmalydvvs klplavmgssygfqyspgqrveflvqawkskktpmgfsydtrcfdstvtesdirteeaiy qccdldpqarvaikslterlyvggpltnsrgencgyrrcrasgvlttscgntltcyikar aacraaglqdctmlvcgddlvvicesagvqedaaslrafteamtrysappgdppqpeydl elitscssnvsvahdgagkrvyyltrdpttplaraawetarhtpvnswlgniimfaptlw armilmthffsvliardqleqalnceiygacysiepldlppiiqrlhglsafslhsyspg einrvaaclrklgvpplrawrhrarsvrarllsrggraaicgkylfnwavrtklkltpia aagrldlsgwftagysggdiyhsvsharprhhhhhh
>2xi2C (C:) smsyswtgalvtpcaaeeqklpinalsnsllrhhnlvysttsrsacqrqkkvtfdrlqvl dshyhdvlkevkaaaskvkanllsveeacsltpphsakskfgygakdvrcharkavahin svwkdlledsvtpidttimaknevfcvqpekggrkparlivfpdlgvrvcekmalydvvs klplavmgssygfqyspgqrveflvqawkskktpmgfsydtrcfdstvtesdirteeaiy qccdldpqarvaikslterlyvggpltnsrgencgyrrcrasgvlttscgntltcyikar aacraaglqdctmlvcgddlvvicesagvqedaaslrafteamtrysappgdppqpeydl elitscssnvsvahdgagkrvyyltrdpttplaraawetarhtpvnswlgniimfaptlw armilmthffsvliardqleqalnceiygacysiepldlppiiqrlhglsafslhsyspg einrvaaclrklgvpplrawrhrarsvrarllsrggraaicgkylfnwavrtklkltpia aagrllsgwftagysggdiyh