Results 81 to 90 of about 3,282,036 (289)

Functional uncoupling of MCM helicase and DNA polymerase activities activates the ATR-dependent checkpoint.

open access: yesGenes & Development, 2005
The ATR-dependent DNA damage response pathway can respond to a diverse group of lesions as well as inhibitors of DNA replication. Using the Xenopus egg extract system, we show that lesions induced by UV irradiation and cis-platinum cause the functional ...
T. Byun   +4 more
semanticscholar   +1 more source

EMT‐associated bias in the Parsortix® system observed with pancreatic cancer cell lines

open access: yesMolecular Oncology, EarlyView.
The Parsortix® system was tested for CTC enrichment using pancreatic cancer cell lines with different EMT phenotypes. Spike‐in experiments showed lower recovery of mesenchymal‐like cells. This was confirmed with an EMT‐inducible breast cancer cell line.
Nele Vandenbussche   +8 more
wiley   +1 more source

Evaluation of Different Amplification Protocols for Use in Primer-Extension Preamplification

open access: yesBioTechniques, 1996
Different amplification protocols were evaluated for use with primer-extension preamplification (PEP). We hypothesized that a protocol known to improve amplification of long DNA fragments would improve efficacy of PEP. Eight DNA samples were preamplified
Eduardo Casas, Brian W. Kirkpatrick
doaj   +1 more source

Watching DNA polymerase η make a phosphodiester bond

open access: yesNature, 2012
DNA synthesis has been extensively studied, but the chemical reaction itself has not been visualized. Here we follow the course of phosphodiester bond formation using time-resolved X-ray crystallography.
Teruya Nakamura   +4 more
semanticscholar   +1 more source

Ubiquitylation of DNA polymerase λ

open access: yesFEBS Letters, 2011
DNA polymerase (pol) λ, one of the 15 cellular pols, belongs to the X family. It is a small 575 amino‐acid protein containing a polymerase, a dRP‐lyase, a proline/serine rich and a BRCT domain. Pol λ shows various enzymatic activities including DNA polymerization, terminal transferase and dRP‐lyase.
Markkanen Enni   +3 more
openaire   +4 more sources

Cytomegalovirus infection is common in prostate cancer and antiviral therapies inhibit progression in disease models

open access: yesMolecular Oncology, EarlyView.
Human cytomegalovirus infection is common in normal prostate epithelium, prostate tumor tissue, and prostate cancer cell lines. CMV promotes cell survival, proliferation, and androgen receptor signaling. Anti‐CMV pharmaceutical compounds in clinical use inhibited cell expansion in prostate cancer models in vitro and in vivo, motivating investigation ...
Johanna Classon   +13 more
wiley   +1 more source

Chimeric diphtheria toxin–CCL8 cytotoxic peptide for breast cancer management

open access: yesMolecular Oncology, EarlyView.
DTCCL8 is a recombinant fusion toxin that targets cancer cells expressing chemokine receptors. By combining diphtheria toxin with CCL8, DTCCL8 binds to multiple receptors on tumor cells and induces selective cytotoxicity. This strategy enables receptor‐mediated targeting of cancer and may support the development of chemokine‐guided therapeutics ...
Bernardo Chavez   +5 more
wiley   +1 more source

New in vitro dna polymerase activity and fidelity assay reveals age-dependent changes in Arabidopsis Thaliana

open access: yesInternational Journal of Plant Biology, 2011
DNA polymerase is an enzyme that adds nucleotides to the growing DNA chain during replication and DNA repair. DNA polymerase activity and fidelity are important characteristics that reflect the ability of DNA polymerase to add nucleotides and then ...
Andrey Golubov   +3 more
doaj   +1 more source

ITGAV and SMAD4 influence the progression and clinical outcome of pancreatic ductal adenocarcinoma

open access: yesMolecular Oncology, EarlyView.
In SMAD4‐positive pancreatic ductal adenocarcinoma (PDAC), integrin subunit alpha V (ITGAV) activates latent TGF‐β, which binds to the TGF‐β receptor and phosphorylates SMAD2/3. The activated SMAD2/3 forms a complex with SMAD4, and together they translocate to the nucleus, modulating gene expression to promote proliferation, migration, and invasion. In
Daniel K. C. Lee   +9 more
wiley   +1 more source

DNA extraction and polymerase chain reaction

open access: yesJournal of Cytology, 2019
DNA extraction and polymerase chain reaction (PCR) are the basic techniques employed in the molecular laboratory. This short overview covers various physical and chemical methods used for DNA extraction so as to obtain a good-quality DNA in sufficient ...
Nalini Gupta
doaj   +1 more source

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