Word Study
actinomycin
CIDE DICTIONARY
actinomycin, n. [From actinomyces, the genus of the organism in which they were first found.].
any of various red antibiotics isolated from soil bacteria with a three-ring heterocyclic nucleus with an attached peptide chain.
"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." [WordNet 1.5]
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