Kanamycin
From Wikipedia, the free encyclopedia
This article does not cite any references or sources. (March 2007) Please help improve this article by adding citations to reliable sources. Unverifiable material may be challenged and removed. |
Kanamycin
|
|
Systematic (IUPAC) name | |
2-(aminomethyl)- 6-[4,6-diamino-3- [4-amino-3,5-dihydroxy-6-(hydroxymethyl) tetrahydropyran-
2-yl]oxy-2-hydroxy-cyclohexoxy]- tetrahydropyran-3,4,5-triol |
|
Identifiers | |
CAS number | |
ATC code | A07 J01GB04 S01AA24 |
PubChem | |
DrugBank | |
Chemical data | |
Formula | C18H36N4O11 |
Mol. mass | 484.499 |
Pharmacokinetic data | |
Bioavailability | very low after oral delivery |
Metabolism | ? |
Half life | 2 hours 30 minutes |
Excretion | ? |
Therapeutic considerations | |
Pregnancy cat. |
? |
Legal status |
? |
Routes | Oral, intravenous, intramuscular |
Kanamycin sulfate is an aminoglycoside antibiotic, available in both oral and intravenous forms, and used to treat a wide variety of infections. Kanamycin is isolated from Streptomyces kanamyceticus[1].
Contents |
[edit] Pharmacology
Kanamycin works by affecting the 30S ribosomal subunit and causing a frameshift mutation or it prevents the translation of RNA. This means that instead of a codon CAT (for example in sequence CATG), a codon ATG is read by aminoacyl tRNA (aa-tRNA). Aminoacyl tRNA is consequently carrying a different amino acid, because the anticodon on the aa-tRNA is different. The protein needed cannot be synthesized: depending on the site and severity of the frame shift, either a completely different protein is synthesized, or a protein similar to the one needed is synthesized, but is folded incorrectly. A bacterium is destroyed because it cannot produce any of its proteins correctly.[citation needed]
Kanamycin is not given to humans often because of its fairly toxic side-effects.
[edit] Side effects
Serious side effects include changes in hearing (either hearing loss or ringing in the ears), toxicity to kidneys, and allergic reactions to the drug.[2]
[edit] Use in research
Genes encoding kanamycin resistance are commonly used as selectable markers in molecular biology.[citation needed] At least one such gene, Atwbc19[3] is native to a plant species, of comparatively large size and its coded protein acts in a manner which decreases the possibility of Horizontal Gene Transfer from the plant to bacteria; it may be incapable of giving resistance to kanamycin to bacteria even if gene transfer occurs.
|
|
[edit] References
- ^ Garrod, L.P., et al.: "Antibiotic and Chemotherapy", page 131. Churchill Livingstone, 1981
- ^ Consumer Drug Information: Kanamycin, 2 April 2008, <http://www.drugs.com/cdi/kanamycin.html>. Retrieved on 4 May 2008
- ^ Horizontal Gene Transfer: Plant vs. Bacterial Genes for Antibiotic Resistance Scenario's—What's the Difference?