نتایج جستجو برای: template synthesis
تعداد نتایج: 448733 فیلتر نتایج به سال:
In the past decades, many methods have been developed to synthesize zero- dimensional nanoparticles, quasi–one–dimensional (1D) CuO nanostructures, such as metal organic deposition technique, microwave irradiation, sol-gel-like dip technique, reverse micelle-assisted route, chemical method, and simple template free solution route. Among those synthesis methods, hydrothermal and chemical reac...
All of the previously reported recombinant RNA-dependent RNA polymerases (RdRp), the NS5B enzymes, of hepatitis C virus (HCV) could function only in a primer-dependent and template-nonspecific manner, which is different from the expected properties of the functional viral enzymes in the cells. We have now expressed a recombinant NS5B that is able to synthesize a full-length HCV genome in a temp...
Imprinted nanoparticles present several advantages respect to bulk imprinted materials, but, when prepared by traditional methods, their usefulness is limited as the approaches are costly or require complex optimization steps, while purification from template molecules challenging. An innovative approach solid-phase synthesis. It consists in covalent immobilization of onto a solid support, poly...
Regulation of argA operon expression in Escherichia coli K-12 was studied in a cell-free, deoxyribonucleic acid-dependent, enzyme-synthesizing system. lambdaAZ-7 deoxyribonucleic acid, which carries a fusion of the lacZ structural gene to the argA operon so that beta-galactosidase synthesis is under argA regulation, was used as the template. To eliminate extraneous readthrough from lambda promo...
A template for reconfigurable instruction set processors is described. This template defines a design space that enables the exploration of processors potentially suitable for flexible, power and cost efficient implementations of embedded multimedia applications, such as video compression in a hand held device. The template is based on a VLIW processor with a reconfigurable instruction set. In ...
The replicative polymerases cannot accommodate distortions to the native DNA sequence such as modifications (lesions) to the native template bases from exposure to reactive metabolites and environmental mutagens. Consequently, DNA synthesis on an afflicted template abruptly stops upon encountering these lesions, but the replication fork progresses onward, exposing long stretches of the damaged ...
The crystal structure of the recombinant hepatitis C virus (HCV) RNA-dependent RNA polymerase (RdRp) revealed extensive interactions between the fingers and the thumb subdomains, resulting in a closed conformation with an established template channel that should specifically accept single-stranded templates. We made circularized RNA templates and found that they were efficiently used by the HCV...
Several natural RNAs were compared with respect to their template activities for the DNA polymerase of Rous Sarcoma Virus during a 2-hr incubation period. 60-70S viral RNA was found to be a 5- to 10-fold better template than heat-dissociated Rous viral RNA, influenza virus RNA, tobacco mosaic virus RNA, or ribosomal RNA. Denatured salmon DNA is a little better, and poly(dAT) is 2-4 times better...
Numerous studies have suggested that the K65R reverse transcriptase (RT) mutation develops more readily in subtype C than subtype B HIV-1. We recently showed that this discrepancy lies partly in the subtype C template coding sequence that predisposes RT to pause at the site of K65R mutagenesis. However, the mechanism underlying this observation and the elevated rates of K65R development remaine...
Protein synthesis is the result of a series of coupled events, many of which can be measured. In this report, the determination of the synthesis of peptides of chain length three and greater was used as a measure of translocation, the movement of the ribosome along the polyribonucleotide template. Translocation was observed both in the presence and absence of one added soluble transfer factor w...
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