Results 41 to 50 of about 410,825 (308)

The ability to form homodimers is essential for RDM1 to function in RNA-directed DNA methylation. [PDF]

open access: yesPLoS ONE, 2014
RDM1 (RNA-DIRECTED DNA METHYLATION1) is a small plant-specific protein required for RNA-directed DNA methylation (RdDM). RDM1 interacts with RNA polymerase II (Pol II), ARGONAUTE4 (AGO4), and the de novo DNA methyltransferase DOMAINS REARRANGED ...
Taku Sasaki   +4 more
doaj   +1 more source

A Genomic Point Mutation in the Extracellular Domain of the Thyrotropin Receptor in Patients with Graves’ Ophthalmopathy [PDF]

open access: yes, 1994
Orbital and pretibial fibroblasts are targets of autoimmune attack in Graves' ophthalmopathy (GO) and pretibial dermopathy (PTD). The fibroblast autoantigen involved in these peripheral manifestations of Graves' disease and the reason for the association
Bahn, Rebecca S.   +3 more
core   +1 more source

DNA-directed DNA Polymerase and Strand Displacement Activity of the Reverse Transcriptase Encoded by the R2 Retrotransposon [PDF]

open access: yesJournal of Molecular Biology, 2007
R2 elements are non-long terminal repeat (non-LTR) retrotransposons with a single open reading-frame encoding reverse transcriptase, DNA endonuclease and nucleic acid-binding domains. The elements are specialized for insertion into the 28 S rRNA genes of many animal phyla.
Anna, Kurzynska-Kokorniak   +3 more
openaire   +2 more sources

Rapid generation of chromosome-specific alphoid DNA probes using the polymerase chain reaction [PDF]

open access: yes, 1992
Non-isotopic in situ hybridization of chromosome-specific alphoid DNA probes has become a potent tool in the study of numerical aberrations of specific human chromosomes at all stages of the cell cycle. In this paper, we describe approaches for the rapid
A Gnirke   +33 more
core   +1 more source

The trans-activation domain of the sporulation response regulator Spo0A revealed by X-ray crystallography [PDF]

open access: yes, 2000
Sporulation in Bacillus involves the induction of scores of genes in a temporally and spatially co-ordinated programme of cell development. Its initiation is under the control of an expanded two-component signal transduction system termed a phosphorelay.
Baldus J.M.   +32 more
core   +1 more source

Inhibitors of HIV-1 Reverse Transcriptase—Associated Ribonuclease H Activity

open access: yesBiology, 2012
HIV-1 enzyme reverse transcriptase (RT) is a major target for antiviral drug development, with over half of current FDA-approved therapeutics against HIV infection targeting the DNA polymerase activity of this enzyme. HIV-1 RT is a multifunctional enzyme
Michael A. Parniak   +4 more
doaj   +1 more source

Developments in the tools and methodologies of synthetic biology. [PDF]

open access: yes, 2014
Synthetic biology is principally concerned with the rational design and engineering of biologically based parts, devices, or systems. However, biological systems are generally complex and unpredictable, and are therefore, intrinsically difficult to ...
Freemont, P   +3 more
core   +1 more source

A model for transition of 5 '-nuclease domain of DNA polymerase I from inert to active modes [PDF]

open access: yes, 2011
Bacteria contain DNA polymerase I (PolI), a single polypeptide chain consisting of similar to 930 residues, possessing DNA-dependent DNA polymerase, 3'-5' proofreading and 5'-3' exonuclease (also known as flap endonuclease) activities.
A Díaz   +50 more
core   +7 more sources

A DCL3 dicing code within Pol IV-RDR2 transcripts diversifies the siRNA pool guiding RNA-directed DNA methylation

open access: yeseLife, 2022
In plants, selfish genetic elements, including retrotransposons and DNA viruses, are transcriptionally silenced by RNA-directed DNA methylation. Guiding the process are short interfering RNAs (siRNAs) cut by DICER-LIKE 3 (DCL3) from double-stranded ...
Andrew Loffer   +5 more
doaj   +1 more source

DNA-Directed Polymerase Subunits Play a Vital Role in Human Telomeric Overhang Processing [PDF]

open access: yesMolecular Cancer Research, 2015
Abstract Telomeres consist of TTAGGG repeats bound by the shelterin complex and end with a 3′ overhang. In humans, telomeres shorten at each cell division, unless telomerase (TERT) is expressed and able to add telomeric repeats.
Raffaella, Diotti   +3 more
openaire   +2 more sources

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