RNA polymerase


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to RNA polymerase: RNA polymerase II

nu·cle·o·tid·yl·trans·fer·as·es

(nū'klē-ō-tī'dĭl-trans'fĕr-ās'ĕz),
Enzymes that catalyze the transfer of transferring nucleotide residues (nucleotidyls) from nucleoside di- or triphosphates into dimer or polymer forms. Some nucleotidyltransferases bear specific names (for example, adenylyltransferases), trivial names indicating the linkage hydrolyzed in the synthesis (pyrophosphorylases, phosphorylases), or names indicating the material that is synthesized (for example, RNA or DNA polymerase).

RNA polymerase

n.
A polymerase that catalyzes the synthesis of a complementary strand of RNA from a DNA template, or, in some viruses, from an RNA template.

RNA polymerase

An enzyme that catalyses the joining of appropriate NUCLEOTIDES to form a molecule of RNA, using DNA as a template.

RNA polymerase

one of several enzymes that catalyses the formation of RNA molecules from DNA templates during TRANSCRIPTION. see OPERON MODEL.
References in periodicals archive ?
The RNA polymerase cannot bind to DNA and gene expression will be inhibited or silenced (Sirtuins are human enzymes analog to the Silent Information Regulation 2 -SIR 2 - proteins of yeast).
Kornberg, "A multiprotein mediator of transcriptional activation and its interaction with the C-terminal repeat domain of RNA polymerase II," Cell, vol.
Unlike RNA virus, humans do not have RdRp, but have DNA-dependent RNA polymerase (DdRp) and DNA-dependent DNA polymerase.
RNA polymerase I pathway is denoted uniquely to transcribe the copies of genes coding the pre-rRNA precursor, which is processed into 5.8S, 18S, and 28S rRNAs.
Based on degrees > 100, a total of 5 hub pathways were identified, including DNA replication (ID = 144, degree = 176), synthesis of bile acids, and bile salts via 7alpha-hydroxycholesterol (ID = 578, degree = 176), RNA polymerase II transcription (ID = 503, degree = 169), mRNA splicing (ID = 340, degree = 146), and mRNA splicing- major pathway (ID = 341, degree = 146).
These results indicated that Q7G inhibits viral RNA polymerase, and that it occupies the binding site of [m.sup.7]GTP on viral PB2 protein.
Amplification involves the synthesis of cDNA from the RNA target with a primer containing the T7 RNA polymerase promoter sequence.
RNA polymerase differs from DNA polymerase in that a primer is not needed to initiate synthesis.
Different gene expression systems based on the xylose controlled promoter P(xylA) and various phage RNA polymerase driven systems (for instance, T7) enable B.
The virus relies on an enzyme called RNA polymerase to infect and spread in a host.
All NDV viral mRNAs are transcribed from NDV genomic RNA by using the viral RNA-dependent RNA polymerase (vRdRp) assembled from NP, P, and L proteins [11, 12].