Chains and heterogens:
PDB Chain Sequences:
>1xnsA (A:) sdevrknlmdmfrdrqafsehtwkmllsvcrswaawcklnnrkwfpaepedvrdyllylq arglavktiqqhlgqlnmlhrrsglprpsdsnavslvmrrirkenvdagerakqalafer tdfdqvrslmensdrcqdirnlaflgiayntllriaeiarirvkdisrtdggrmlihigr tktlvstagvekalslgvtklverwisvsgvaddpnnylfcrvrkngvaapsatsqlstr alegifeathrliygakddsgqrylawsghsarvgaardmaragvsipeimqaggwtnvn ivmnyirnldsetgamvrlledgd
>1xnsA (A:) sdevrknlmdmfrdrqafsehtwkmllsvcrswaawcklnnrkwfpaepedvrdyllylq arglavktiqqhlgqlnmlhrrsglprpsdsnavslvmrrirkenvdagerakqalafer tdfdqvrslmensdrcqdirnlaflgiayntllriaeiarirvkdisrtdggrmlihigr tktlvstagvekalslgvtklverwisvsgvaddpnnylfcrvrkngvaapsatsqlstr alegifeathrliygakddsgqrylawsghsarvgaardmaragvsipeimqaggwtnvn ivmnyirnldsetgamvrlled
>1xnsB (B:) sdevrknlmdmfrdrqafsehtwkmllsvcrswaawcklnnrkwfpaepedvrdyllylq arglavktiqqhlgqlnmlhrrsglprpsdsnavslvmrrirkenvdagerakqalafer tdfdqvrslmensdrcqdirnlaflgiayntllriaeiarirvkdisrtdggrmlihigr tktlvstagvekalslgvtklverwisvsgvaddpnnylfcrvrkngvaapsatsqlstr alegifeathrliygakddsgqrylawsghsarvgaardmaragvsipeimqaggwtnvn ivmnyirnldsetgamvrlledgd
>1xnsB (B:) sdevrknlmdmfrdrqafsehtwkmllsvcrswaawcklnnrkwfpaepedvrdyllylq arglavktiqqhlgqlnmlhrrsglprpsdsnavslvmrrirkenvdagerakqalafer tdfdqvrslmensdrcqdirnlaflgiayntllriaeiarirvkdisrtdggrmlihigr tktlvstagvekalslgvtklverwisvsgvaddpnnylfcrvrkngvaapsatsqlstr alegifeathrliygakddsgqrylawsghsarvgaardmaragvsipeimqaggwtnvn ivmnyirnldsetgamvrlled