Results 61 to 70 of about 803,841 (299)

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

A Perspective on the Enhancer Dependent Bacterial RNA Polymerase

Biomolecules, 2015
Here we review recent findings and offer a perspective on how the major variant RNA polymerase of bacteria, which contains the sigma54 factor, functions for regulated gene expression.
Nan Zhang, Martin Buck
doaj   +1 more source

Identifying Different Mutation Sites Leading to Resistance to the Direct-Acting Antiviral (DAA) Sofosbuvir in Hepatitis C Virus Patients from Egypt

Microorganisms, 2022
The hepatitis C virus (HCV) is a major global health challenge and a leading cause of morbidity and mortality. Many direct-acting antivirals (DAAs) target essential macromolecules involved in the virus’ life cycle.
Aly Atef Shoun, Rania Abozahra, Kholoud Baraka, Mai Mehrez, Sarah M. Abdelhamid   +4 more
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

A narnavirus-like element from the trypanosomatid protozoan parasite Leptomonas seymouri [PDF]

, 2016
Genome sequences were determined for a novel RNA virus, Leptomonas seymouri Narna-like virus 1 (LepseyNLV1). A 2.9-kb segment encodes an RNA-dependent RNA polymerase (RdRp), while a smaller 1.5-kb segment showed no database search matches.
Akopyants, Natalia S, Beverley, Stephen M, Dobson, Deborah E, Lye, Lon-Fye   +3 more
core   +2 more sources

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

In situ structures of the segmented genome and RNA polymerase complex inside a dsRNA virus. [PDF]

, 2015
Viruses in the Reoviridae, like the triple-shelled human rotavirus and the single-shelled insect cytoplasmic polyhedrosis virus (CPV), all package a genome of segmented double-stranded RNAs (dsRNAs) inside the viral capsid and carry out endogenous ...
Chang, Winston, Ding, Ke, Sun, Jingchen, Yu, Xuekui, Zhang, Xing, Zhou, Z Hong   +5 more
core  

A global function for transcription factors in assisting RNA polymerase II termination. [PDF]

, 2017
The role of transcription factors (TFs) on nucleosome positioning, RNA polymerase recruitment, and transcription initiation has been extensively characterized.
Chanfreau, Guillaume F, Roy, Kevin
core   +1 more source

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

FEBS 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, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

A new yeast poly(A) polymerase complex involved in RNA quality control [PDF]

, 2005
Eukaryotic cells contain several unconventional poly(A) polymerases in addition to the canonical enzymes responsible for the synthesis of poly(A) tails of nuclear messenger RNA precursors.
Štěpánka Vaňáčová, Jeannette Wolf, Georges Martin, Diana Blank, Sabine Dettwiler, Arno Friedlein, Hanno Langen, Gérard Keith, Walter Keller, Phillip Zamore, Wahle, Minvielle-Sebastia, Zhao, Edmonds, Proudfoot, Zorio, Aravind, Holm, Martin, Preker, Martin, Martin, Bard, Read, Saitoh, Wang, Sadoff, Wang, Wang, Crittenden, Kwak, Keller, van Hoof, Kuai, Kadaba, Mitchell, O'Hara, Li, Cheng, Dreyfus, Inoue, Martin, Puig, Lingner, de la Cruz, Wang, Vijayraghavan, Anderson, Gerber, Dirheimer, Mitchell, Walowsky, Dannull, Amarasinghe, Castaño, Basavappa, Kushner, Symmons, Parker, Torchet, Fromont-Racine, Ohnacker, Dichtl, Fountoulakis, Wilm, Dirheimer, Keith, Senger, Dichtl, Christofori, Falquet, Rain   +71 more
core   +4 more sources