| direct involvement of is26 in an antibiotic resistance operon. | the plasmid pbwh77, originally found in an isolate of klebsiella pneumoniae, harbors a new antibiotic resistance operon containing two resistance genes transcribed from an is26-hybrid promoter, as shown by nucleotide sequencing, mrna mapping, and the effect of inserting a transcription terminator within the promoter-proximal gene. the nucleotide sequence of this region revealed that the operon (iab) is made up of three sections that are closely related to previously described genetic elements. t ... | 1990 | 2160941 |