Results 41 to 50 of about 547,455 (357)

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Identification and functional analysis of novel phosphorylation sites in the RNA surveillance protein Upf1. [PDF]

, 2013
One third of inherited genetic diseases are caused by mRNAs harboring premature termination codons as a result of nonsense mutations. These aberrant mRNAs are degraded by the Nonsense-Mediated mRNA Decay (NMD) pathway.
Bracho, Dina P, Cajigas, Iván J, Correa, María E, Estrella, Luis A, González, Carlos I, González-Feliciano, José A, Lasalde, Clarivel, León, Alfredo J, Rivera, Andrea V, Rodríguez-Cruz, Eva N, Vega, Irving E, Wilkinson, Miles F   +11 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Structure-function relationship of KaiC around dawn

Biophysics and Physicobiology
KaiC is a multifunctional enzyme functioning as the core of the circadian clock system in cyanobacteria: its N-terminal domain has adenosine triphosphatase (ATPase) activity, and its C-terminal domain has autokinase and autophosphatase activities ...
Yoshihiko Furuike, Eiki Yamashita, Shuji Akiyama   +2 more
doaj   +1 more source

The gastric H, K-ATPase system also functions as the Na, K-ATPase and Ca-ATPase in altered states [v1; ref status: indexed, http://f1000r.es/1eo]

F1000Research, 2013
This article offers an explanation for the apparent lack of Na, K-ATPase activity in parietal cells although ouabain has been known to inhibit gastric acid secretion since 1962.
Tushar Ray
doaj   +1 more source

Proton Motive Force-Dependent Hoechst 33342 Transport by the ABC Transporter LmrA of Lactococcus lactis [PDF]

, 2005
The fluorescent compound Hoechst 33342 is a substrate for many multidrug resistance (MDR) transporters and is widely used to characterize their transport activity.
Abbreviations ABC, Chen M., Doerrler W. T., Ecker G. F., Gajic O., Haugland R. P., Higuchi R., Ketchum C. J., Kuipers O. P., Lalande M. E., Lanzetta P. A., Lewinson O., Linnett P. E., Lubelski J., Lubelski J., Margolles A., Mazurkiewicz P., Orelle C., Paternostre M. T., Poelarends G. J., Putman M., Sakamoto K., Sambrook J., Shapiro A. B., Shapiro A. B., Shapiro A. B., Shapiro A. B., Sharma S., Steinfels E., Urbatsch I. L., van Veen H. W., van Veen H. W., van Veen H. W., Venter H., Viitanen P., Yu J. L.   +35 more
core   +2 more sources

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

Molecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee, Byung‐Cheol Han, Gi‐Bang Koo, Jihye Park, Mijin Kwon, Young Bin Park, Jae‐Mun Choi, Seung‐Ho Lee, Sangho Roh   +8 more
wiley   +1 more source

Enhanced expression of vacuolar H+-ATPase subunit E in the roots is associated with the adaptation of Broussonetia papyrifera to salt stress. [PDF]

PLoS ONE, 2012
Vacuolar H(+)-ATPase (V-H(+)-ATPase) may play a pivotal role in maintenance of ion homeostasis inside plant cells. In the present study, the expression of V-H(+)-ATPase genes was analyzed in the roots and leaves of a woody plant, Broussonetia papyrifera,
Min Zhang, Yanming Fang, Zhenhai Liang, Libin Huang   +3 more
doaj   +1 more source

Recurrent De Novo NAHR Reciprocal Duplications in the ATAD3 Gene Cluster Cause a Neurogenetic Trait with Perturbed Cholesterol and Mitochondrial Metabolism. [PDF]

, 2020
Recent studies have identified both recessive and dominant forms of mitochondrial disease that result from ATAD3A variants. The recessive form includes subjects with biallelic deletions mediated by non-allelic homologous recombination.
Armstrong, C, Baple, E, Baptista, J, Caswell, R, Cunningham, MH, Dean, J, Durigon, R, Durlacher-Betzer, K, Ellard, S, Fernandez Pelayo, U, Grochowski, CM, Gunning, AC, Harel, T, Holt, IJ, Homfray, T, Jones, AWE, Lahiri, N, Lupski, JR, Misra, VK, Muñoz Oreja, M, Parrish, A, Scurr, I, Spinazzola, A, Stals, KL, Strucinska, K, Taylor, RW, Tysoe, C, Wright, CF, Yoon, WH   +28 more
core   +3 more sources