Results 91 to 100 of about 1,762,100 (297)

Thecl repressor of bacteriophage P1 operator-repressor interaction of wild-type and mutant repressor proteins

Nucleic Acids Research, 1989
The c1 repressor gene of bacteriophage P1 and the temperature-sensitive mutants P1c1.100 and P1c1.162 was cloned into an expression vector and the repressor proteins were overproduced. A rapid purification procedure was required for the isolation of the thermolabile repressor proteins.
J, Heinrich, H D, Riedel, B R, Baumstark, M, Kimura, H, Schuster   +4 more
openaire   +3 more sources

Biochemical characterization of bacteriophage IPhane7 repressor proteins [PDF]

, 2021
Bacteriophages are viruses that infect bacteria and can utilize two different pathways after infection; the lytic or lysogenic cycles. During the lytic cycle, the bacteriophage hijacks the bacterial machinery to replicate itself and destroy the bacterial
NC DOCKS at Western Carolina University, Renaud, Vance, Cafferty, Erin   +2 more
core  

Pharmacological chromatin remodeling enhances response to estrogen therapy in ER+ breast cancer

Molecular Oncology, EarlyView.
Estrogen therapy elicits clinical benefit in ~ 30% of patients with endocrine‐resistant estrogen receptor (ER)‐positive breast cancer. Based on findings that ER transcriptional activation underlies response to estrogen therapy, we tested the effects of epigenetic dysregulation via pharmacological inhibition of histone deacetylases (HDACi).
Anneka L. Johnson Thomas, Barbara Karakyriakou, Patricia C. Muskus, Alyssa M. Roberts, Justin Rendleman, Alexa Warren, Hanxu Lu, Kimberly A. Birmingham, Malone K. Friedman, Abigail E. Goen, Huijuan Yang, Owen M. Wilkins, Fred W. Kolling, Eugene Demidenko, Julie M. Jorns, Brock C. Christensen, Todd W. Miller   +16 more
wiley   +1 more source

Arabidopsis PROTEASOME REGULATOR1 is required for auxin-mediated suppression of proteasome activity and regulates auxin signalling

Nature Communications, 2016
Plant responses to auxin require proteasome-mediated degradation of Aux/IAA transcriptional repressor proteins. Here, Yang et al. show that auxin suppresses proteasome activity in a manner dependent on the proteasome regulator PTRE1 and propose a ...
Bao-Jun Yang, Xin-Xin Han, Lin-Lin Yin, Mei-Qing Xing, Zhi-Hong Xu, Hong-Wei Xue   +5 more
doaj   +1 more source

PANoptosis in the pathogenesis of myelodysplastic syndromes

Molecular Oncology, EarlyView.
PANoptosis, a combination of three types of programmed cell death, is mediated by a large protein complex called a PANoptosome. In healthy bone marrow hematopoietic cells, PANoptosis is restricted by inhibitory signaling. In MDS, bone marrow cells become sensitive to the PANoptotic stimuli due to the aberrant inactivation of inhibitory signaling or ...
Rohit Thalla, Jyoti Lamichhane, Cameron Lewis, Peter Breslin, Jiwang Zhang   +4 more
wiley   +1 more source

Engineering novel CRISPRi repressors for highly efficient mammalian gene regulation

Genome Biology
Background CRISPR interference (CRISPRi), the repurposing of the RNA-guided endonuclease dCas9 as a programmable transcriptional repressor, allows highly specific repression (knockdown) of gene expression.
Andrew Kristof, Krithika Karunakaran, Christopher Allen, Paula Mizote, Sophie Briggs, Zixin Jian, Patrick Nash, John Blazeck   +7 more
doaj   +1 more source

ZEB1 turns into a transcriptional activator by interacting with YAP1 in aggressive cancer types

Nature Communications, 2016
The transcription factors ZEB1 and YAP function in different pathways yet both activate aggressive behaviour in cancer cells. Here, the authors describe that the proteins physically interact and that this changes the transcriptional activity of ZEB1 from
Waltraut Lehmann, Dirk Mossmann, Julia Kleemann, Kerstin Mock, Chris Meisinger, Tilman Brummer, Ricarda Herr, Simone Brabletz, Marc P. Stemmler, Thomas Brabletz   +9 more
doaj   +1 more source

The Transcriptional Repressor BS69 is a Conserved Target of the E1A Proteins from Several Human Adenovirus Species

Viruses, 2018
Early region 1A (E1A) is the first viral protein produced upon human adenovirus (HAdV) infection. This multifunctional protein transcriptionally activates other HAdV early genes and reprograms gene expression in host cells to support productive infection.
Ali Zhang, Tanner M. Tessier, Kristianne J. C. Galpin, Cason R. King, Steven F. Gameiro, Wyatt W. Anderson, Ahmed F. Yousef, Wen T. Qin, Shawn S. C. Li, Joe S. Mymryk   +9 more
doaj   +1 more source

Spatial biology in cancer epigenetics

Molecular Oncology, EarlyView.
Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley   +1 more source

ADP‐ribosylation: An emerging regulator of the epigenome

Molecular Oncology, EarlyView.
ADP‐ribosylation has emerged as a dynamic epigenetic signaling mechanism that modifies histones and chromatin‐associated proteins. Through coordinated PARylation and MARylation, it integrates with other histone modifications to regulate chromatin structure, transcription factor activity, and gene expression, influencing genome function and disease ...
Cristel V. Camacho, Chenqian Liu, W. Lee Kraus   +2 more
wiley   +1 more source