antimycin
Học thuậtThân thiện
Definition
Noun: A specific, naturally occurring antibiotic substance that inhibits cellular respiration. It is produced by certain Streptomyces bacteria and is primarily active against various fungi and some other organisms by disrupting their energy production.
Usage
"Antimycin" is a technical, scientific term used in microbiology, biochemistry, and related fields. It refers to the antibiotic compound itself, often discussed in the context of its mechanism of action, research applications, or its role as a biochemical tool.
Examples
- The study investigated the effect of antimycin on mitochondrial function.
- Antimycin A is a well-known inhibitor of the electron transport chain in cells.
- The fungus was susceptible to antimycin in laboratory tests.
Advanced Usage
- As a research tool: In cell biology and biochemistry, antimycin (specifically antimycin A) is frequently used to induce oxidative stress or to study apoptosis (programmed cell death) by inhibiting mitochondrial complex III.
- Example: Researchers used antimycin to trigger reactive oxygen species production in the experimental model.
- In combination: It may be discussed alongside other mitochondrial inhibitors like rotenone or cyanide.
- Example: The respiratory chain was blocked sequentially with rotenone and then antimycin.
Variants and Related Words
- Antimycin A: The most common and studied form of this antibiotic class. When the term "antimycin" is used in research contexts, it often implicitly refers to antimycin A.
- Antibiotic (n): A general term for a substance produced by a microorganism that inhibits or kills other microorganisms.
- Inhibitor (n): A substance that slows down or prevents a particular chemical reaction or process.
Synonyms
- Respiratory inhibitor (descriptive synonym)
- Mitochondrial inhibitor (descriptive synonym, specific to its common research use)
Notes on Meaning
The core meaning of "antimycin" is fixed as the name of this specific antibiotic. It does not have different everyday meanings. Its significance lies in its specific biochemical function rather than broad conceptual meanings.
Noun
- a crystalline antibiotic active against various fungi