Results 61 to 70 of about 15,400,385 (302)

Entamoeba shows reversible variation in ploidy under different growth conditions and between life cycle phases. [PDF]

PLoS Neglected Tropical Diseases, 2008
Under axenic growth conditions, trophozoites of Entamoeba histolytica contain heterogenous amounts of DNA due to the presence of both multiple nuclei and different amounts of DNA in individual nuclei.
Chandrama Mukherjee, C Graham Clark, Anuradha Lohia   +2 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

Genotoxikus hatásra bekövetkező funkcionális és strukturális DNS változások = Functional and structural changes in DNA upon genotoxic effects [PDF]

, 2008
Morfológiai és biokémiai vizsgálataink arra utalnak, hogy a a genotoxikus hatások kategorizálhatók az okozott kromatin változások alapján. A kemotoxikus változások potenciális diagnosztikus jelentősége miatt vizsgáltuk a nehézfémek (elsősosrban kadmium) (
Szepessy, Edit, Rőszer, Tamás, Bánfalvi, Gáspár, Jenei, Zsolt, Serfőző, Zoltán, Nagy, Gábor György, B. Kiss, Zsigmond   +6 more
core   +1 more source

Flow Cytometry for Estimating Plant Genome Size: Revisiting Assumptions, Sources of Variation, Reference Standards, and Best Practices

Journal of the American Society for Horticultural Science
Flow cytometry has been widely used to estimate relative and absolute genome sizes (DNA contents) of plants for more than 50 years. However, the accuracy of these estimates can vary widely because of many factors, including errors in the genome size ...
John Nix, Thomas G. Ranney, Nathan P. Lynch, Hsuan Chen   +3 more
doaj   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

FEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens, Brendan W. Chandler, Anna M. Schmoker, Jaye L. Weinert, Charlotte A. Kearns, Warren T. Yacawych, Amila Šemić, Alicia M. Ebert, Bryan A. Ballif   +8 more
wiley   +1 more source

DNA Fountain enables a robust and efficient storage architecture

Science, 2016
A reliable and efficient DNA storage architecture DNA has the potential to provide large-capacity information storage. However, current methods have only been able to use a fraction of the theoretical maximum.
Y. Erlich, Dina Zielinski
semanticscholar   +1 more source

Significance of DNA Content in Oral Carcinoma

The International Journal of Biological Markers, 1989
Standard cytophotometric measurement of DNA in normal, leukoplakic and cancerous oral and oropharyngeal tissues with a Leitz Weitzler Aristophot Cytophotometer showed both 1% and 5% significance in different grades of malignancy and 5% as regards sites ...
R. Sen
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Relationship between DAPI-fluorescence fading and nuclear DNA content: An alternative method to DNA quantification?

Biological Research, 2007
In observations by confocal or conventional fluorescence microscopy, important factors should be considered in order to obtain accurate images. One of them, such as the fluorescence bleaching from highest intensity to lowest signal of fluorescence is a ...
CRISTIAN GALLARDO-ESCÁRATE, JOSUÉ ÁLVAREZ-BORREGO, ELISABETH VON BRAND, ENRIQUE DUPRÉ, MIGUEL ÁNGEL DEL RÍO-PORTILLA   +4 more
doaj   +3 more sources

Interspecific Crosses Yield Sterile Triploid Porterweed: A Sustainable Alternative to Invasive Nettleleaf Porterweed

HortScience
Porterweed plants (Stachytarpheta sp.), notably the nettleleaf porterweed (Stachytarpheta cayennensis), present both ecological benefits and challenges.
S. Brooks Parrish, Alexander Schaller, Sandra B. Wilson, Zhanao Deng   +3 more
doaj   +1 more source