when reca protein promotes homologous pairing and strand exchange involving circular single strands and linear duplex dna , the protein first polymerizes on the single-stranded dna to form a nucleoprotein filament which then binds naked duplex dna to form nucleoprotein networks , the existence of which is independent of homology , but requires the continued presence of reca protein ( tsang , s. s. , chow , s. a. , and radding , c. m. ( 1985 ) biochemistry 24 , 3226-3232 ) .
C0033684
protein
C0028612
nucleoprotein