>1arq_A mol:protein length:53 ARC REPRESSOR MKGMSKMPQFNLRWPREVLDLVRKVAEENGRSVNSEIYQRVMESFKKEGRIGA >1arq_B mol:protein length:53 ARC REPRESSOR MKGMSKMPQFNLRWPREVLDLVRKVAEENGRSVNSEIYQRVMESFKKEGRIGA