COSMEGEN
\kˈɒzmɛd͡ʒən], \kˈɒzmɛdʒən], \k_ˈɒ_z_m_ɛ_dʒ_ə_n]\
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An antitumor antibiotic derived from Streptomyces parvullus. It binds to DNA and inhibits RNA synthesis (transcription), with chain elongation more sensitive than initiation, termination, or release. As a result of impaired mRNA production, protein synthesis also declines after dactinomycin therapy. (From AMA Drug Evaluations Annual, 1993, p2015)
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Word of the day
dust storm
- a windstorm that lifts up clouds of dust or sand a windstorm that lifts up clouds dust or sand; "it was the kind of duster not experienced in years"