Chains and heterogens:
PDB Chain Sequences:
>3crxA (A:) tsdevrknlmdmfrdrqafsehtwkmllsvcrswaawcklnnrkwfpaepedvrdyllyl qarglavktiqqhlgqlnmlhrrsglprpsdsnavslvmrrirkenvdagerakqalafe rtdfdqvrslmensdrcqdirnlaflgiayntllkiaeiarirvkdisrtdggrmlihig rtktlvstagvekalslgvtklverwisvsgvaddpnnylfcrvrkngvaapsatsqlst ralegifeathrliygakddsgqrylawsghsarvgaardmaragvsipeimqaggwtnv nivmnyirnldsetgamvrlled
>3crxB (B:) tsdevrknlmdmfrdrqafsehtwkmllsvcrswaawcklnnrkwfpaepedvrdyllyl qarglavktiqqhlgqlnmlhrrsglprpsdsnavslvmrrirkenvdagerakqalafe rtdfdqvrslmensdrcqdirnlaflgiayntllkiaeiarirvkdisrtdggrmlihig rtktlvstagvekalslgvtklverwisvsgvaddpnnylfcrvrkngvaapsatsqlst ralegifeathrliygakddsgqrylawsghsarvgaardmaragvsipeimqaggwtnv nivmnyirnldsetgamvrlled