Results 51 to 60 of about 97,697 (191)

Endogenous RNA-directed DNA polymerase activity in uninfected chicken embryos.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1972
Early chicken embryos that are either positive or negative for group-specific antigens of avian leukosis viruses contained endogenous RNA-directed DNA polymerase activity. This endogenous DNA polymerase activity was not increased after mixture of soluble
C. Kang, H. Temin
semanticscholar   +1 more source

Implications of ZNF334 gene in lymph node metastasis of lung SCC: potential bypassing of cellular senescence

open access: yesJournal of Translational Medicine
Background The primary goal of this work is to identify biomarkers associated with lung squamous cell carcinoma and assess their potential for early detection of lymph node metastasis.
Khalil Khashei Varnamkhasti   +2 more
doaj   +1 more source

A communal catalogue reveals Earth’s multiscale microbial diversity

open access: yesNature, 2017
The spontaneous deamination of cytosine is a major source of transitions from C•G to T•A base pairs, which account for half of known pathogenic point mutations in humans.
Nicole M. Gaudelli   +6 more
semanticscholar   +1 more source

BEAN and HABAS: Polyphyletic insertions in the DNA‐directed RNA polymerase

open access: yesProtein Science
AbstractThe β and β′ subunits of the RNA polymerase (RNAP) are large proteins with complex multi‐domain architectures that include several insertional domains. Here, we analyze the domain organizations of RNAP‐β and RNAP‐β′ using sequence, experimentally determined structures and AlphaFold structure predictions.
Alvarez‐Carreño, Claudia   +4 more
openaire   +2 more sources

The Thymocyte-Specific MAR Binding Protein, SATB1, Interacts in Vitro with a Novel Variant of DNA-Directed RNA Polymerase II, Subunit 11

open access: yesGenomics, 2002
A yeast two-hybrid screen of a Jurkat (T cell) derived cDNA library, using SATB1 (a matrix attachment region binding protein) as the bait, yielded four independent isolates of a novel variant of the DNA directed RNA polymerase II, subunit 11 (RPB11). Absence of lysine-17 from the amino terminus of this variant cannot be explained by alternative mRNA ...
Theodore G. Krontiris, Linda K. Durrin
openaire   +3 more sources

CHH islands: de novo DNA methylation in near-gene chromatin regulation in maize

open access: yesGenome Research, 2013
Small RNA-mediated regulation of chromatin structure is an important means of suppressing unwanted genetic activity in diverse plants, fungi, and animals. In plants specifically, 24-nt siRNAs direct de novo methylation to repetitive DNA, both foreign and
J. Gent   +6 more
semanticscholar   +1 more source

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