these results suggest that ( i ) only one dna-binding site is sufficient for the reca protein to promote the processive unwinding ( the ability of the protein to form spontaneous filaments is closely related to this process ) and that ( ii ) two dna-binding sites on each of the reca polypeptides or those composed of a dimer ( or oligomer ) of the polypeptide are required for the reca protein to promote both the conjunction of parental dna molecules and the homologous pairing ( the ability to form the spontaneous filaments is not essential to this process ) .
C1148673
dna-binding
C1419240
reca