a dna segment carrying a cdna copy of the luciferase gene ( luc ) of the north american firefly photinus pyralis , fused to the lambda pr promoter and expressed in escherichia coli [ de wet et al. , proc . natl . acad . sci . usa 82 ( 1985 ) 7870-7873 ] , was inserted into a broad-host-range plasmid vector and established in a variety of gram-negative bacteria .
C0011198
de
C0041703
usa