원문정보
초록
영어
Although phosphorylation of chloramphenicol has been shown to occur in chloramphenicol producer, Streptomyces venezuelae, there are no reports on the existence of chloramphenicol phosphorylase in other Streptomyces species. In the present study, we report the modification of chloramphenicol by a recombinant protein designated as Yhr2 from Streptomyces avermitilis MA4680. Recombinant Yhr2 was expressed in Escherichia coli BL21 (DE3) and the cells expressing this recombinant protein was shown to phosphorylate chloramphenicol to a 3’-Ophosphoryl ester derivative resulting in an inactivated form of the antibiotic. Expression of yhr2 conferred chloramphenicol resistance to E. coli cells upto 25 mg/mL. This study highlights that antibiotic resistance conferring genes could be easily expressed and functionalized in other organisms that does not produce the respective antibiotic.
