on the other hand , the existence of specific interactions between c1 proteins and dna was suggested by two facts : the retention of c. capitata [ 3h ] dna in nitrocellulose filters was only a low percentage of total input dna and there was a marked size dependence of the binding ( 25 % retention of a 40-kb dna and only 3 % retention with a dna of 1 kb ) .
C0000702
a
C0012854
dna