reca protein , which is essential for genetic recombination in escherichia coli , was extensively purified from a strain of e. coli which contained the reca gene cloned in a plasmid ( sancar , a. , and rupp , w. d. ( 1979 ) proc . natl . acad . sci . u. s. a . 76 , 3144-3148 ) .
C0034865
genetic recombination
C1419240
reca