tyrocidine


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tyrocidine

 [ti″ro-si´din]
a cyclic polypeptide antibiotic, containing one or more d-amino acids and produced by Bacillus brevis. It is effective against gram-positive organisms and acts by disrupting the bacterial cell membrane. It is one of two major components of tyrothricin, the other being gramicidin.

ty·ro·ci·din

, tyrocidine (tī'rō-sī'din),
An antibacterial cyclopeptide obtained from Bacillus brevis.
See also: tyrothricin.

tyrocidine

also

tyrocidin

(tī′rə-sīd′n)
n.
A polypeptide antibiotic, produced by the soil microorganism Bacillus brevis, that is a major constituent of tyrothricin.