Definition

Noun A polypeptide antibiotic, similar in some properties to bacitracin, that is obtained from the soil bacterium Bacillus subtilis. It is an antimicrobial substance used to inhibit the growth of certain other bacteria.

Usage

"Subtilin" is a technical term used primarily in microbiology, biochemistry, and pharmacology. It refers to a specific antibiotic compound. * The research paper studied the effectiveness of subtilin against Gram-positive foodborne pathogens. * Subtilin is produced as a natural defense mechanism by the Bacillus subtilis bacterium.

Advanced Usage

• Bacteriocin Classification: Subtilin is classified as a lantibiotic, a type of bacteriocin (a proteinaceous toxin produced by bacteria to inhibit closely related bacterial strains). It is known for containing the unusual amino acid lanthionine.
  • The lantibiotic subtilin acts by forming pores in the target bacterial cell membrane.

Variants and Related Words

• Subtilisin (Noun): This is a distinct, unrelated word. It refers to a serine protease enzyme, also produced by , used in laundry detergents.
  • Do not confuse the antibiotic subtilin with the enzyme subtilisin.

Synonyms

• Antibiotic (General term)
• Lantibiotic (Specific class)
• Bacteriocin (Broader class)

Related Phrases / Compounds

• Subtilin production: The process by which the bacterium synthesizes the antibiotic.
  • The genes for subtilin production are located on the bacterial chromosome.
• Subtilin activity: The measurable effect or potency of the antibiotic.
  • The subtilin activity was assayed against Listeria monocytogenes.

Noun

1. a polypeptide antibiotic (similar to bacitracin) obtained from a soil bacterium