Results 221 to 230 of about 249,842 (263)

Iron-sulfur cofactors in nucleic acid metabolism and protein synthesis: Assembly, delivery, and putative roles in cellular and viral systems. [PDF]

J Biol Chem
Maio N, Rouault TA.
europepmc   +1 more source

Loss of Pol32, a subunit of DNA polymerases δ and ζ, leads to different patterns of genome stability than direct impairment of these individual polymerases. [PDF]

mBio
Qi L, Li K-J, Tang X-X, Tian L-Y, Wang Y-K, He M, Zhang K, Petes TD, Zheng D-Q.   +8 more
europepmc   +1 more source

DNA-directed DNA Polymerase Activity in Oncogenic RNA Viruses

Nature, 1970
Besides having RNA-dependent DNA polymerase activity, oncogenic RNA viruses possess a DNA-directed DNA polymerase which is distinguished from previously described enzymes of this type in preferring double-stranded DNA as template and yielding a principally double-stranded product.
M Trávníček, Schlom J, J Schlom
exaly   +4 more sources

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The DNA-directed RNA polymerases of soybean

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1973
Abstract Four cellular RNA polymerases have been partially purified from hypocotyls of soybean ( Glycine max ). Enzyme isolation from nuclear preparations indicate the DEAE polymerases I and II are localized within the nucleus. Inhibitor studies showed that DEAE polymerase II was preferentially inhibited by α-amanitin, DEAE peaks III and IV were ...
P A, Horgen, J L, Key
openaire   +3 more sources

The effect of aryl hydrocarbon receptor ligands on the expression of polymerase (DNA directed) kappa (Polκ), polymerase RNA II (DNA directed) polypeptide A (PolR2a), CYP1B1 and CYP1A1 genes in rat liver

Environmental Toxicology and Pharmacology, 2012
The aryl hydrocarbon receptor (AhR) mediates a variety of biological responses to ubiquitous environmental pollutants. AhR is ligand activated transcription factor with high affinities for aromatic planar compounds such as β-naphthoflavone (BNF), 3-methylcholanthrene (3-MC), benzo[a]pyrene (BaP) or dioxin (TCDD).
Damian Brauze
exaly   +3 more sources

Effect of granaticin on the activity of DNA-directed RNA polymerase fromStreptomyces granaticolor

Folia Microbiologica, 1989
DNA-directed RNA polymerase was isolated from wild-type and mutant (asporogenic and granaticin overproducing) Streptomyces granaticolor. The effect of granaticin on the enzyme activity was compared with that of standard transcription inhibitors, rifampicin and rifamycin SV and shown to be zero.
J, Smardová, J, Spízek, J, Stastná, M, Klégr   +3 more
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A DNA-directed DNA polymerase from murine liver mitochondria

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1975
A DNA-directed DNA polymerase has been isolated from murine liver mitochondria. The mitochondrial DNA polymerase is distinguishable from other DNA polymerases found in the nucleus and cytosol of murine cells by several enzymatic and physical properties. It is stimulated 5--6-fold by 0.15 M KCl, does not require a sulfhydryl reducing agent for activity,
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On the Binding of Rifampicin to the DNA‐Directed RNA Polymerase from Escherichia coli

European Journal of Biochemistry, 1973
The capacity of RNA polymerase to bind the antibiotic rifampicin is rather sensitive to conditions which lead to conformational changes in the enzyme. Repeated freezing and thawing in 1 M LiCl as well as treatment with guanidinium chloride destroys the binding affinity of the enzyme for the inhibitor. Similarly rifampicin does not associate with any of
U I, Lill, G R, Hartmann
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Improved prediction of prognosis and therapy response for lung adenocarcinoma after identification of DNA-directed RNA polymerase-associated lncRNAs

Journal of Cancer Research and Clinical Oncology, 2023
DNA-directed RNA polymerase (DDRP) related genes and long non-coding RNAs (lncRNAs) play an important role in the development of lung adenocarcinoma (LUAD), the leading cause of cancer-related death worldwide. Therefore, we aimed to construct a DDRP-associated lncRNA model to predict the prognosis of LUAD and to evaluate its sensitivity to ...
Jiaao, Yu, Liqiang, Lan, Caixin, Liu, Xiao, Zhu   +3 more
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The isolation and properties of a DNA-directed RNA polymerase from yeast mitochondria

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1976
A method is described for the rapid isolation of yeast mitochondrial DNA-directed RNA polymerase. The enzyme obtained had a specific activity of 1.56 nmol UMP incorporated per mg protein in 20 min at 37 degrees C, and is some 95% pure. This purified enzyme upon polyacrylamide gel elctrophoresis consists of a single polypeptide of 68 000 mol.
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