Biomaterial Database

Expression of the kanamycin resistance gene in a kanamycin-producing strain of Streptomyces kanamyceticus. 1989

M M Nakano, and I Butsuya, and H Ogawara

Department of Biochemistry, Meiji College of Pharmacy, Tokyo, Japan.

The previously cloned kanamycin resistance gene (kmr) from Streptomyces kanamyceticus ISP5500 was shown to modify the 30S ribosomal subunit in a subunit exchange experiment. The kmr gene, which was normally repressed in S. kanamyceticus, appeared to be induced under growth conditions which activated kanamycin biosynthesis. S1 mapping analysis revealed that the expression of the kmr gene was regulated at the transcriptional level. Acetylation of kanamycin is another resistance mechanism in the kanamycin producer. However, unlike kmr-mediated resistance, the enzyme which catalyzed acetylation was not regulated coordinately with kanamycin biosynthesis.

UI	MeSH Term	Description	Entries
D007612	Kanamycin	Antibiotic complex produced by Streptomyces kanamyceticus from Japanese soil. Comprises 3 components: kanamycin A, the major component, and kanamycins B and C, the minor components.	Kanamycin A,Kanamycin Sulfate,Kantrex
D010957	Plasmids	Extrachromosomal, usually CIRCULAR DNA molecules that are self-replicating and transferable from one organism to another. They are found in a variety of bacterial, archaeal, fungal, algal, and plant species. They are used in GENETIC ENGINEERING as CLONING VECTORS.	Episomes,Episome,Plasmid
D002874	Chromosome Mapping	Any method used for determining the location of and relative distances between genes on a chromosome.	Gene Mapping,Linkage Mapping,Genome Mapping,Chromosome Mappings,Gene Mappings,Genome Mappings,Linkage Mappings,Mapping, Chromosome,Mapping, Gene,Mapping, Genome,Mapping, Linkage,Mappings, Chromosome,Mappings, Gene,Mappings, Genome,Mappings, Linkage
D003001	Cloning, Molecular	The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells.	Molecular Cloning
D004352	Drug Resistance, Microbial	The ability of microorganisms, especially bacteria, to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).	Antibiotic Resistance,Antibiotic Resistance, Microbial,Antimicrobial Resistance, Drug,Antimicrobial Drug Resistance,Antimicrobial Drug Resistances,Antimicrobial Resistances, Drug,Drug Antimicrobial Resistance,Drug Antimicrobial Resistances,Drug Resistances, Microbial,Resistance, Antibiotic,Resistance, Drug Antimicrobial,Resistances, Drug Antimicrobial
D000107	Acetylation	Formation of an acetyl derivative. (Stedman, 25th ed)	Acetylations
D000123	Acetyltransferases	Enzymes catalyzing the transfer of an acetyl group, usually from acetyl coenzyme A, to another compound. EC 2.3.1.	Acetyltransferase
D013302	Streptomyces	A genus of bacteria that form a nonfragmented aerial mycelium. Many species have been identified with some being pathogenic. This genus is responsible for producing a majority of the ANTI-BACTERIAL AGENTS of practical value.