Results 61 to 70 of about 240,794 (319)

T4 DNA polymerase improves the efficiency of multiple site-directed mutagenesis

open access: yesBiotechnology & Biotechnological Equipment, 2016
Site-directed mutagenesis (SDM) is a useful tool to study the functions of regulatory sequences of DNA and RNA, and the structures and functions of proteins. Numerous methods have been developed for either single or multiple SDM (MSDM).
Wei Guo   +4 more
doaj   +1 more source

Error correction during DNA replication [PDF]

open access: yesPhysical Review E, VOL.86, 011913 (2012), 2011
DNA polymerase (DNAP) is a dual-purpose enzyme that plays two opposite roles in two different situations during DNA replication. It plays its normal role as a {\it polymerase} catalyzing the elongation of a new DNA molecule by adding a monomer. However, it can switch to the role of an {\it exonuclease} and shorten the same DNA by cleavage of the last ...
arxiv   +1 more source

Annotation of genomics data using bidirectional hidden Markov models unveils variations in Pol II transcription cycle

open access: yesMolecular Systems Biology, 2014
DNA replication, transcription and repair involve the recruitment of protein complexes that change their composition as they progress along the genome in a directed or strand‐specific manner.
Benedikt Zacher   +4 more
doaj   +1 more source

Identification of Potential Biomarkers for CAD Using Integrated Expression and Methylation Data

open access: yesFrontiers in Genetics, 2020
DNA methylation plays an essential role in the pathogenesis of coronary artery disease (CAD) through regulating mRNA expressions. This study aimed to identify hub genes regulated by DNA methylation as biomarkers of CAD.
Xiaokang Zhang   +6 more
doaj   +1 more source

A Pol V-mediated silencing, independent of RNA-directed DNA methylation, applies to 5S rDNA. [PDF]

open access: yesPLoS Genetics, 2009
The plant-specific RNA polymerases Pol IV and Pol V are essential to RNA-directed DNA methylation (RdDM), which also requires activities from RDR2 (RNA-Dependent RNA Polymerase 2), DCL3 (Dicer-Like 3), AGO4 (Argonaute), and DRM2 (Domains Rearranged ...
Julien Douet   +2 more
doaj   +1 more source

The developmental regulator PKL is required to maintain correct DNA methylation patterns at RNA-directed DNA methylation loci

open access: yesGenome Biology, 2017
Background The chromodomain helicase DNA-binding family of ATP-dependent chromatin remodeling factors play essential roles during eukaryote growth and development.
Rong Yang   +13 more
doaj   +1 more source

One-Pot Production of RNA in High Yield and Purity Through Cleaving Tandem Transcripts

open access: yesMolecules, 2020
There is an increasing demand for efficient and robust production of short RNA molecules in both pharmaceutics and research. A standard method is in vitro transcription by T7 RNA polymerase.
Hannes Feyrer   +3 more
doaj   +1 more source

Evidence of particle-associated RNA-directed DNA polymerase and high molecular weight RNA in human gastrointestinal and lung malignancies.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1974
Previous communications have demonstrated that neoplastic cells of human breast cancers, leukemias, lymphomas, sarcomas, and brain tumors contain particles with similar diagnostic attributes as those found in RNA oncornaviruses.
W. Cuatico, J. Cho, S. Spiegelman
semanticscholar   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

open access: yesFEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere   +5 more
wiley   +1 more source

miRNA‐29 regulates epidermal and mesenchymal functions in skin repair

open access: yesFEBS Letters, EarlyView.
miRNA‐29 inhibits cell‐to‐cell and cell‐to‐matrix adhesion by silencing mRNA targets. Adhesion is controlled by complex interactions between many types of molecules coded by mRNAs. This is crucial for keeping together the layers of the skin and for regenerating the skin after wounding.
Lalitha Thiagarajan   +10 more
wiley   +1 more source

Home - About - Disclaimer - Privacy