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RNA Polymerase I

A DNA-dependent RNA polymerase present in bacterial, plant, and animal cells. The enzyme functions in the nucleolar structure and transcribes DNA into RNA. It has different requirements for cations and salts than RNA polymerase II and III and is not inhibited by alpha-amanitin.

Year introduced: 1984(1977)

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Tree Number(s): D08.811.913.696.445.735.270.750

MeSH Unique ID: D012318

Registry Number: EC

Entry Terms:

  • Polymerase I, RNA
  • DNA-Dependent RNA Polymerase I
  • DNA Dependent RNA Polymerase I
  • RNA Polymerase A
  • Polymerase A, RNA

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