Chains and heterogens:
PDB Chain Sequences:
>4crxA (A:) sdevrknlmdmfrdrqafsehtwkmllsvcrswaawcklnnrkwfpaepedvrdyllylq arglavktiqqhlgqlnmlhrrsglprpsdsnavslvmrrirkenvdagerakqalafer tdfdqvrslmensdrcqdirnlaflgiayntllkiaeiarirvkdisrtdggrmlihigr tktlvstagvekalslgvtklverwisvsgvaddpnnylfcrvrkngvaapsatsqlstr alegifeathrliygakddsgqrylawsghsarvgaardmaragvsipeimqaggwtnvn ivmnyirnldsetgamvrlled
>4crxB (B:) sdevrknlmdmfrdrqafsehtwkmllsvcrswaawcklnnrkwfpaepedvrdyllylq arglavktiqqhlgqlnmlhrrsglprpsdsnavslvmrrirkenvdagerakqalafer tdfdqvrslmensdrcqdirnlaflgiayntllkiaeiarirvkdisrtdggrmlihigr tktlvstagvekalslgvtklverwisvsgvaddpnnylfcrvrkngvaapsatsqlstr alegifeathrliygakddsgqrylawsghsarvgaardmaragvsipeimqaggwtnvn ivmnyirnldsetgamvrlled