Results 71 to 80 of about 486,388 (376)

Tracing blastomere fate choices of early embryos in single cell culture [PDF]

open access: yes, 2010
Blastomeres of early vertebrate embryos undergo numerous fate choices for division, motility, pluripotency maintenance and restriction culminating in various cell lineages.
Chang Ming Li   +11 more
core   +1 more source

Toward a molecular understanding of yeast silent chromatin : roles for H4K16 acetylation and the Sir3 C-terminus [PDF]

open access: yes, 2012
Discrete regions of the eukaryotic genome assume a heritable chromatin structure that is refractory to gene expression. In budding yeast, silent chromatin is characterized by the loading of the Silent Information Regulatory (Sir) proteins (Sir2, Sir3 and
Oppikofer, Mariano
core   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Olive culture establishment in vitro.

open access: yesActa pharmaceutica, 1995
Sterile culture of olive cultivars 'Oblica' and 'Lastovka' was established camparing woody and non-woody explants. Axillary buds developed normal or hyperhydric shoots. Non-woody shoots were significantly better than woody. For non-woody explants both media , IM and WPM, were suitable. Nodes also developed sub-axillary buds.
Kovačević, Ivica   +1 more
openaire   +1 more source

Spire stimulates nucleation by Cappuccino and binds both ends of actin filaments. [PDF]

open access: yes, 2020
The actin nucleators Spire and Cappuccino synergize to promote actin assembly, but the mechanism of their synergy is controversial. Together these proteins promote the formation of actin meshes, which are conserved structures that regulate the ...
Bailey, Hannah M   +3 more
core  

Role of cellular senescence and NOX4-mediated oxidative stress in systemic sclerosis pathogenesis. [PDF]

open access: yes, 2015
Systemic sclerosis (SSc) is a systemic autoimmune disease characterized by progressive fibrosis of skin and numerous internal organs and a severe fibroproliferative vasculopathy resulting frequently in severe disability and high mortality.
A Diazdeleon   +130 more
core   +2 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Milieu-adopted in vitro and in vivo differentiation of mesenchymal tissues derived from different adult human CD34-negative progenitor cell clones [PDF]

open access: yes, 2005
Adult mesenchymal stem cells with multilineage differentiation potentially exist in the bone marrow, but have also been isolated from the peripheral blood.
Huss, R.   +4 more
core   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Cultivo in vitro de Geophila macropoda (Ruiz & Pav.DC) a partir de embriones cigóticos [PDF]

open access: yes, 2010
In vitro culture of Geophila macropoda (Ruiz & Pav. DC) from zygotic embryos. The goal of this research was to develop a protocol for the in vitro culture of Geophila macropoda.
Abdelnour-Esquivel, Ana   +1 more
core  

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