Results 51 to 60 of about 4,645,161 (307)

Cholesterol supply and SREBPs modulate transcription of the Niemann-Pick C-1 gene in steroidogenic tissues

open access: yesJournal of Lipid Research, 2008
We tested whether sterol-regulatory element binding proteins (SREBPs) mediate sterol-regulated transactivation of the Niemann-Pick C-1 (NPC-1) gene. Loading granulosa cells with 22- or 25-hydroxycholesterol decreased NPC-1 mRNA, whereas culturing in ...
Nicolas Gévry   +3 more
doaj   +1 more source

Gene Transcript Profiling in Desert Bighorn Sheep

open access: yesWildlife Society Bulletin, 2020
Respiratory disease is a key factor affecting the conservation and recovery of bighorn sheep (Ovis canadensis) populations. Innovative, minimally invasive tools such as gene transcription–based diagnostics have the potential to improve our understanding ...
Lizabeth Bowen   +7 more
doaj   +1 more source

Biodegradation of Pesticides at the Limit: Kinetics and Microbial Substrate Use at Low Concentrations

open access: yesFrontiers in Microbiology, 2020
The objective of our study was to test whether limited microbial degradation at low pesticide concentrations could explain the discrepancy between overall degradability demonstrated in laboratory tests and their actual persistence in the environment ...
Johannes Wirsching   +8 more
doaj   +1 more source

Immunologic, metabolic and genetic impact of diabetes on tuberculosis susceptibility

open access: yesFrontiers in Immunology, 2023
Due to the increasing prevalence of diabetes mellitus (DM) globally, the interaction between DM and major global diseases like tuberculosis (TB) is of great public health significance, with evidence of DM having about a three-fold risk for TB disease. TB
Phillip Ssekamatte   +3 more
doaj   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Structure of the Nipah virus polymerase phosphoprotein complex

open access: yesNature Communications
The Nipah virus (NiV), a member of the Paramyxoviridae family, is notorious for its high fatality rate in humans. The RNA polymerase machinery of NiV, comprising the large protein L and the phosphoprotein P, is essential for viral replication. This study
Ge Yang, Dong Wang, Bin Liu
doaj   +1 more source

Bacterial MerR family transcription regulators: activationby distortion

open access: yesActa Biochimica et Biophysica Sinica, 2021
Transcription factors (TFs) modulate gene expression by regulating the accessibility of promoter DNA to RNA polymerases (RNAPs) in bacteria. The MerR family TFs are a large class of bacterial proteins unique in their physiological functions and molecular
Fang Chengli, Zhang Yu
doaj   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

open access: yesFEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa   +3 more
wiley   +1 more source

The “Fourth Dimension” of Gene Transcription [PDF]

open access: yesMolecular Endocrinology, 2009
The three dimensions of space provide our relationship to position on the earth, but the fourth dimension of time has an equally profound influence on our lives. Everything from light and sound to weather and biology operate on the principle of measurable temporal periodicity.
openaire   +2 more sources

Remote control of gene transcription [PDF]

open access: yesHuman Molecular Genetics, 2005
In this review, we look at the most recent studies of DNA elements that function over long genomic distances to regulate gene transcription and will discuss the mechanisms genes employ to overcome the positive and negative influences of their genomic neighbourhood in order to achieve accurate programmes of expression.
Adam G, West, Peter, Fraser
openaire   +2 more sources

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