Antibiotic

Antibiotic resistance
Bacteria may become resistant to an antibiotic because the bacteria contain genes that confer drug resistance. Frequently these drug resistant genes are carried by natural plasmids.
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Antibiotic resistance is the ability of a microorganism to withstand the effects of an antibiotic. Antibiotic resistance can develop naturally via natural selection through random mutation.
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antibiotic
antagonism of one organism toward another; a drug, derived chiefly from fungi and bacteria
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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This antibiotic blocks the action of the bacterial isoleucine tRNA synthetase, the enzyme responsible for attaching the amino acid isoleucine (Ile) to its tRNA in preparation for protein synthesis, so protein synthesis is inhibited.
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The ability of a microorganism to produce a protein that disables an antibiotic or prevents transport of the antibiotic into the cell.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
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Antibiotic
An antibiotic is a drug that kills or slows the growth of bacteria. Antibiotics are one class of "antimicrobials", a larger group which also includes anti-viral, anti-fungal, and anti-parasitic drugs.
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Antibiotic resistance genes can be obtained by the uptake of free-floating DNA released from a bacterial cell that has died.
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Biocomplexity
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antibiotic resistance
peppered moth, Biston betularia,
scarlet tiger moth, Calimorpha dominula,
pesticide resistance ...
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Antibiotic resistance
A controversial aspect of GM technology is the use of antibiotic-resistance genes as markers to help locate cells in which gene transfer was successful.
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Antibiotic resistance: Plasmids generally contain genes which confer on the host bacterium the ability to survive a given antibiotic.
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Antibiotic resistance: Resistance conferred to the host the ability to survive a given antibiotic by plasmids containing resistance genes.
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Antibiotic a chemical agent which directly or indirectly kills bacteria in a person's body
(anti = against opposite; bios = life)
Antibody a chemical produced by B-cells to "tag" foreign invaders
(anti = against opposite) ...
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Antibiotic
A substance that interfers with a particular step of cellular metabolism, causing either bactericidal or bacteriostatic inhibition; sometimes restricted to those having a natural biological origin.
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Antibiotic resistance in bacteria
In modern times antibiotics, drugs that target specific features of bacteria, have become very popular. Bacteria evolve very quickly so it is not surprising that they have evolved resistance to antibiotics.
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antibiotics Substances produced by some microorganisms, plants, and vertebrates that kill or inhibit the growth of bacteria.
antibiotic resistance Tendency of certain bacteria to develop a resistance to commonly over-used antibiotics.
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antibiotic
[Gk. anti, against + bios, life]
A chemical that kills bacteria or inhibits their growth.
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antibiotic Substance that inhibits the growth of microorganisms, antibodiesProteins (immunoglobulins) in cell surfaces and dissolved in blood, capable of combining with the antigens that stimulated their production.
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An antibiotic derived from penicillin that prevents bacterial growth by interfering with cell wall synthesis. Amplify.
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[A plasmalogen] plasmid An extrachromosomal, independently replicating, small circular DNA molecule of prokaryotes associated with antibiotic resistance; commonly employed in genetic engineering.
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A23187 - mobile-carrier calcium ionophore (allows Ca++ ions to cross cell membranes) originally isolated as an antibiotic from Streptomyces chartreusensis. Also known as Calcimycin, Antibiotic A23187.
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With respect to cloning of DNA, refers to the transformation of bacteria (usually to specific antibiotic resistance) due to the uptake of foreign DNA.
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Bacterial transposonsmay carry, in addition to genes encoding enzymes needed for transposition, genes for antibiotic resistance or other functions.
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