>1XNS_1|Chain A[auth C]|loxP DNA|
TATAACTTCGTATAATGTATGCTATACGAAGTTAT
>1XNS_2|Chain B[auth D]|loxP DNA|
ATAACTTCGTATAGCATACATTATACGAAGTTAT
>1XNS_3|Chains C[auth A], D[auth B]|Recombinase CRE|Enterobacteria phage P1 (10678)
SDEVRKNLMDMFRDRQAFSEHTWKMLLSVCRSWAAWCKLNNRKWFPAEPEDVRDYLLYLQARGLAVKTIQQHLGQLNMLHRRSGLPRPSDSNAVSLVMRRIRKENVDAGERAKQALAFERTDFDQVRSLMENSDRCQDIRNLAFLGIAYNTLLRIAEIARIRVKDISRTDGGRMLIHIGRTKTLVSTAGVEKALSLGVTKLVERWISVSGVADDPNNYLFCRVRKNGVAAPSATSQLSTRALEGIFEATHRLIYGAKDDSGQRYLAWSGHSARVGAARDMARAGVSIPEIMQAGGWTNVNIVMNYIRNLDSETGAMVRLLEDGD