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263 results on '"Terminator"'

252. Comparative overview of RNA polymerase II and III transcription cycles, with focus on RNA polymerase III termination and reinitiation.

Author

Arimbasseri AG, Rijal K, and Maraia RJ

Subjects
Eukaryotic Cells metabolism, RNA Polymerase II metabolism, RNA Polymerase III metabolism, Transcription Factors, TFII physiology, Transcription Factors, TFIII physiology, Models, Genetic, Models, Molecular, RNA Polymerase II physiology, RNA Polymerase III physiology, Transcription Initiation, Genetic, Transcription Termination, Genetic
Abstract

In eukaryotes, RNA polymerase (RNAP) III transcribes hundreds of genes for tRNAs and 5S rRNA, among others, which share similar promoters and stable transcription initiation complexes (TIC), which support rapid RNAP III recycling. In contrast, RNAP II transcribes a large number of genes with highly variable promoters and interacting factors, which exert fine regulatory control over TIC lability and modifications of RNAP II at different transitional points in the transcription cycle. We review data that illustrate a relatively smooth continuity of RNAP III initiation-elongation-termination and reinitiation toward its function to produce high levels of tRNAs and other RNAs that support growth and development.

Published
2014
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253. ARNOLD SCHWARZENEGGER.

Abstract

ROBIN ROBERTS (ABC NEWS) (Off-camera) It is great to have Arnold Schwarzenegger here this morning. More than 30 years ago he said it, I'll be back. [ABSTRACT FROM PUBLISHER]

Published
2015

255. 3'-Fluoro-2',3'-dideoxyribonucleoside 5'-triphosphates: terminators of DNA synthesis

Author

G. V. Zaitseva, Igor A. Mikhailopulo, Eugenii I. Kvasyuk, Robert Beabealashvilli, Andrei V. Scamrov, Zurab Chidgeavadze, Gotthard Kowollik, and Peter Langen

Subjects
DNA Replication, 3'-Fluoro-2',3'-dideoxyribonucleoside 5'-triphosphate, DNA polymerase, DNA polymerase II, Deoxyribonucleotides, Biophysics, Biochemistry, chemistry.chemical_compound, DNA Nucleotidylexotransferase, Structural Biology, Escherichia coli, Genetics, Animals, heterocyclic compounds, Terminator, Molecular Biology, DNA clamp, DNA synthesis, Base Sequence, biology, Chemistry, RNA-Directed DNA Polymerase, DNA replication, Fluorine, Cell Biology, DNA Polymerase I, Reverse transcriptase, enzymes and coenzymes (carbohydrates), biology.protein, Cattle, DNA polymerase I, Terminal deoxyribonucleotidyl transferase, DNA
Abstract

It is shown that dNTP(3'F) are terminators of DNA synthesis and may serve as very effective tools for DNA sequencing with E.coli DNA polymerase I and AMV reverse transcriptase. The dNTP(3'F) are found to be chain terminator substrates for calf thymus terminal deoxyribonucleotidyl transferase but not for calf thymus DNA polymerase α. The optimal dNTP(3'F) concentration for DNA sequencing by DNA polymerase I is found to be an order of magnitude lower than that of ddNTPs. dNTP(3'F) produce a more clear sequence pattern than do ddNTPs.

Published
1985
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256. 3′-Deoxy-3′-aminonucleoside 5′-triphosphates — Terminators of RNA synthesis, catalyzed by DNA-dependent RNA polymerase from Escherichia coli

Author

Tamata Kutateladze, Alexander A. Krayevsky, Robert Beabealashvili, and A. V. Azhayev

Subjects
Transcription, Genetic, Termination factor, Deoxyribonucleotides, Biophysics, RNA-dependent RNA polymerase, medicine.disease_cause, Biochemistry, Catalysis, DNA-dependent RNA polymerase, Structure-Activity Relationship, Structural Biology, Transcription (biology), Genetics, RNA polymerase I, medicine, Escherichia coli, Terminator, RNA synthesis, Molecular Biology, Polymerase, biology, Cell Biology, DNA-Directed RNA Polymerases, Templates, Genetic, Molecular biology, Terminator (genetics), DNA, Viral, biology.protein, 3′-Deoxy-3′-aminonucleoside 5′-triphosphate
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