thus , the multiple functions of cistron a protein include : ( i ) nicking the viral strand at the origin of replication to initiate a round of replication , ( ii ) participating in a complex which supports fork movement in strand separation and replication , ( iii ) nicking again at the regenerated origin to produce a unit-length dna , and ( iv ) ligating the newly generated 3'-oh end to the 5'-phosphate-complexed end to form a circular viral molecule .
C0598312
replication
C0012854
dna