Results 111 to 120 of about 374,029 (398)

miR-181a increases FoxO1 acetylation and promotes granulosa cell apoptosis via SIRT1 downregulation. [PDF]

, 2017
Oxidative stress impairs follicular development by inducing granulosa cell (GC) apoptosis, which involves enhancement of the transcriptional activity of the pro-apoptotic factor Forkhead box O1 (FoxO1).
Ding, Lijun, Hu, Yali, Jiang, Ruiwei, Jiang, Yue, Sun, Haixiang, Sun, Jianxin, Xu, Lu, Yan, Guijun, Zhang, Chunxue, Zhang, Mei, Zhang, Qun   +10 more
core   +2 more sources

Simultaneous inhibition of TRIM24 and TRIM28 sensitises prostate cancer cells to antiandrogen therapy, decreasing VEGF signalling and angiogenesis

Molecular Oncology, EarlyView.
TRIM24 and TRIM28 are androgen receptor (AR) coregulators which exhibit increased expression with cancer progression. Both TRIM24 and TRIM28 combine to influence the response of castrate‐resistant prostate cancer (CRPC) cells to AR inhibitors by mediating AR signalling, regulation of MYC and upregulating VEGF to promote angiogenesis. Castrate‐resistant
Damien A. Leach, Nilesh Chatterjee, Kellie Spahr, Gilberto Serrano de Almeida, Anabel Varela‐Carver, Taimur T. Shah, Mathias Winkler, Hashim U. Ahmed, Charlotte L. Bevan   +8 more
wiley   +1 more source

Non-enzymatic N-acetylation of Lysine Residues by AcetylCoA Often Occurs via a Proximal S-acetylated Thiol Intermediate Sensitive to Glyoxalase II

Cell Reports, 2017
Summary: Acetyl coenzyme A (AcCoA), a key intermediate in mitochondrial metabolism, N-acetylates lysine residues, disrupting and, in some cases, regulating protein function.
Andrew M. James, Kurt Hoogewijs, Angela Logan, Andrew R. Hall, Shujing Ding, Ian M. Fearnley, Michael P. Murphy   +6 more
doaj  

O -Acetylated sugars in the gas phase: stability, migration, positional isomers and conformation [PDF]

Physical Chemistry Chemical Physics, 2022, 24 (2), pp.1016-1022
O-acetylations are functional modifications which can be found on different hydroxyl groups of glycans and which contribute to the fine tuning of their biological activity. Localizing the acetyl modifications is notoriously challenging in glycoanalysis, in particular because of their mobility: loss or migration of the acetyl group may occur through the
arxiv   +1 more source

Mapping Hsp104 interactions using cross‐linking mass spectrometry

FEBS Open Bio, Volume 15, Issue 6, Page 922-939, June 2025.
This study examines how cross‐linking mass spectrometry can be utilized to analyze ATP‐induced conformational changes in Hsp104 and its interactions with substrates. We developed an analytical pipeline to distinguish between intra‐ and inter‐subunit contacts within the hexameric homo‐oligomer and discovered contacts between Hsp104 and a selected ...
Kinga Westphal, Karolina Michalska, Andrzej Joachimiak, Lukasz A. Joachimiak   +3 more
wiley   +1 more source

Acetylation of histones and non-histone proteins is not a mere consequence of ongoing transcription

Nature Communications
In all eukaryotes, acetylation of histone lysine residues correlates with transcription activation. Whether histone acetylation is a cause or consequence of transcription is debated.
Tim Liebner, Sinan Kilic, Jonas Walter, Hitoshi Aibara, Takeo Narita, Chunaram Choudhary   +5 more
doaj   +1 more source

Acetylation of the yeast Hsp40 chaperone protein Ydj1 fine-tunes proteostasis and translational fidelity.

PLoS Genetics
Proteostasis, the maintenance of cellular protein balance, is essential for cell viability and is highly conserved across all organisms. Newly synthesized proteins, or "clients," undergo sequential processing by Hsp40, Hsp70, and Hsp90 chaperones to ...
Siddhi Omkar, Megan M Mitchem, Joel R Hoskins, Courtney Shrader, Jake T Kline, Nitika, Luca Fornelli, Sue Wickner, Andrew W Truman   +8 more
doaj   +1 more source

Identification of Novel Protein Lysine Acetyltransferases in Escherichia coli

mBio, 2018
Posttranslational modifications, such as Nε-lysine acetylation, regulate protein function. Nε-lysine acetylation can occur either nonenzymatically or enzymatically.
David G. Christensen, Jesse G. Meyer, Jackson T. Baumgartner, Alexandria K. D’Souza, William C. Nelson, Samuel H. Payne, Misty L. Kuhn, Birgit Schilling, Alan J. Wolfe   +8 more
doaj   +1 more source

Simulation of Drosophila Circadian Oscillations, Mutations, and Light Responses by a Model with VRI, PDP-1, and CLK [PDF]

, 2004
A model of Drosophila circadian rhythm generation was developed to represent feedback loops based on transcriptional regulation of per, Clk (dclock), Pdp-1, and vri (vrille). The model postulates that histone acetylation kinetics make transcriptional activation a nonlinear function of [CLK]. Such a nonlinearity is essential to simulate robust circadian
arxiv   +1 more source

Better force fields start with better data -- A data set of cation dipeptide interactions [PDF]

arXiv, 2021
We present a data set from a first-principles study of amino-methylated and acetylated (capped) dipeptides of the 20 proteinogenic amino acids - including alternative possible side chain protonation states and their interactions with selected divalent cations (Ca$^{2+}$, Mg$^{2+}$ and Ba$^{2+}$).
arxiv