actinomycin F1
actinomycin actinomycin n. [From actinomyces, the genus of the organism in which they were first found.] 1. any of various red antibiotics isolated from soil bacteria with a three-ring heterocyclic nucleus with an attached peptide chain.

Note: Actinomycin D is the most well-known and has been used to treat certain tumors. They act by binding to DNA and inhibiting the transcription of RNA. Their binding to DNA has been much studied.

Syn: actinomycin {actinomycin C} {actinomycin F1} {actinomycin D} [WordNet 1.5]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • actinomycin — n. [From actinomyces, the genus of the organism in which they were first found.] 1. any of various red antibiotics isolated from soil bacteria with a three ring heterocyclic nucleus with an attached peptide chain. Note: Actinomycin D is the most… …   The Collaborative International Dictionary of English

  • actinomycin C — actinomycin actinomycin n. [From actinomyces, the genus of the organism in which they were first found.] 1. any of various red antibiotics isolated from soil bacteria with a three ring heterocyclic nucleus with an attached peptide chain. Note:… …   The Collaborative International Dictionary of English

  • actinomycin D — actinomycin actinomycin n. [From actinomyces, the genus of the organism in which they were first found.] 1. any of various red antibiotics isolated from soil bacteria with a three ring heterocyclic nucleus with an attached peptide chain. Note:… …   The Collaborative International Dictionary of English

  • actinomycin — A group of peptide antibiotic agents, isolated from several species of Streptomyces (originally Actinomyces), that are active against Gram positive bacteria, fungi, and neoplasms. Actinomycins are chromopeptides, most containing the chromophore… …   Medical dictionary

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