Results 91 to 100 of about 1,824,501 (365)

The primary σ factor in Escherichia coli can access the transcription elongation complex from solution in vivo

eLife, 2015
The σ subunit of bacterial RNA polymerase (RNAP) confers on the enzyme the ability to initiate promoter-specific transcription. Although σ factors are generally classified as initiation factors, σ can also remain associated with, and modulate the ...
Seth R Goldman, Nikhil U Nair, Christopher D Wells, Bryce E Nickels, Ann Hochschild   +4 more
doaj   +1 more source

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

Fission yeast 26S proteasome mutants are multi-drug resistant due to stabilization of the pap1 transcription factor [PDF]

, 2012
Here we report the result of a genetic screen for mutants resistant to the microtubule poison methyl benzimidazol-2-yl carbamate (MBC) that were also temperature sensitive for growth.
Caroline R. Wilkinson (117644), Itaru Samejima, Mathiassen, Søs G, Penney, M., Mary Penney (117638), McInerny Christopher J., Samejima, I., Mairi Wallace (117659), Wallace Mairi, Søs G Mathiassen, Gordon Colin, Gordon, C., Wallace, Mairi, Christopher J. McInerny (117648), Hartmann-Petersen, Rasmus, Christopher J McInerny, McInerny, C.J., McInerny, Christopher J, Mary Penney, Takashi Toda (102488), Rasmus Hartmann-Petersen (117664), Toda, Takashi, Wilkinson, Caroline, Toda, T., Mathiassen Søs G., Penney, Mary, Colin Gordon, Penney Mary, Hartmann-Petersen, R., Itaru Samejima (117642), Wilkinson, C.R., Colin Gordon (117667), Hartmann-Petersen Rasmus, Søs G. Mathiassen (117654), Samejima Itaru, Wilkinson Caroline R., Mathiassen, Søs, Wilkinson, Caroline R, Rasmus Hartmann-Petersen, McInerny, Christopher, Toda Takashi, Wallace, M., Samejima, Itaru, Gordon, Colin, Takashi Toda, Mathiassen, S.G., Caroline R Wilkinson, Mairi Wallace   +47 more
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

Differentiation of the mononuclear phagocyte system during mouse embryogenesis:the role of transcription factor PU.1 [PDF]

, 1999
During mouse embryogenesis, macrophage-like cells arise first in the yolk sac and are produced subsequently in the liver. The onset of liver hematopoiesis is associated with the transition from primitive to definitive erythrocyte production.
Lichanska, A M, Ostrowski, M C, Henkel, G W, Maki, R A, Murphy, K M, Browne, C M, Hume, D A, McKercher, S R   +7 more
core  

Sequence Motifs in MADS Transcription Factors Responsible for Specificity and Diversification of Protein-Protein Interaction [PDF]

, 2010
Protein sequences encompass tertiary structures and contain information about specific molecular interactions, which in turn determine biological functions of proteins.
Angenent, G.C., Martijn Fiers, Roeland C H J van Ham, Roeland C. H. J. van Ham, Morabito Giuseppa, Ham, R.C.H.J., van, Aalt D J van Dijk, Angenent Gerco C., Immink, R.G.H., van Dijk, A.D.J., Richard G H Immink, van Dijk Aalt D. J., Morabito, G., van Ham Roeland C. H. J., Dijk, A.D.J., van, Fiers, M.A., Richard G. H. Immink, Giuseppa Morabito, van Ham, R.C.H.J., Aalt D. J. van Dijk, Immink Richard G. H., Gerco C Angenent, Gerco C. Angenent, Fiers Martijn   +23 more
core   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Structural and biochemical analysis of the UvrA binding module of the bacterial transcription repair coupling factor Mfd [PDF]

, 2006
The Mfd (mutation frequency decline) protein is responsible for connecting the cellular processes of transcription and DNA repair in bacteria. Mfd, also termed transcription-repair coupling factor (TRCF), recognizes arrested transcription elongation ...
Aßenmacher, Nora
core  

Removing Background Co-occurrences of Transcription Factor Binding Sites Greatly Improves the Prediction of Specific Transcription Factor Cooperations

Frontiers in Genetics, 2018
Today, it is well-known that in eukaryotic cells the complex interplay of transcription factors (TFs) bound to the DNA of promoters and enhancers is the basis for precise and specific control of transcription.
Cornelia Meckbach, Edgar Wingender, Mehmet Gültas, Mehmet Gültas, Mehmet Gültas   +4 more
doaj   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

FEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai, Mohyeddine Omrane, Nassima Benzoubir, Didier Samuel, Ama Gassama‐Diagne   +4 more
wiley   +1 more source