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RNA polymerase

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RNA polymerase
n.
A polymerase that catalyzes the synthesis of RNA from a DNA or RNA template.

RNA polymerase,
an enzyme that catalyzes the assembly of ribonucleoside triphosphates into RNA, with single-stranded DNA serving as the template. Also called RNA nucleotidyltransferase.

polymerase
an enzyme that catalyzes polymerization, particularly of nucleic acids.

polymerase chain reaction
see pcr1.
RNA polymerase
1. an enzyme that synthesizes an RNA copy of the sequence in a limited region of DNA in a process known as DNA transcription. Called also DNA-dependent RNA polymerase.
2. a viral enzyme that synthesizes RNA from an RNA template during viral replication. Called also RNA-dependent RNA polymerase.
RNA-dependent RNA polymerase
see RNA polymerase (above).
Taq polymerase
a DNA polymerase that functions at high temperature; derived from the bacterium Thermus aquaticus and used in the polymerase chain reaction.


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Like a scanner, RNA polymerase moves across the DNA to copy it.
Four novel amino acid changes (Q447L, N556K, and R46K in RNA polymerase and S133A in hemagglutinin) were detected in virus isolates from 2 siblings who died.
Working out the structure of RNA polymerase was "a marvelous achievement," says James T.
 
 
 
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