Results 41 to 50 of about 12,824 (233)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

A systematic screen for protein–lipid interactions in Saccharomyces cerevisiae

Molecular Systems Biology, 2010
Protein–metabolite networks are central to biological systems, but are incompletely understood. Here, we report a screen to catalog protein–lipid interactions in yeast.
Oriol Gallego, Matthew J Betts, Jelena Gvozdenovic‐Jeremic, Kenji Maeda, Christian Matetzki, Carmen Aguilar‐Gurrieri, Pedro Beltran‐Alvarez, Stefan Bonn, Carlos Fernández‐Tornero, Lars Juhl Jensen, Michael Kuhn, Jamie Trott, Vladimir Rybin, Christoph W Müller, Peer Bork, Marko Kaksonen, Robert B Russell, Anne‐Claude Gavin   +17 more
doaj   +1 more source

Dynamism of PI4-Phosphate during Interactions with Human Erythrocytes in Entamoeba histolytica

Microorganisms, 2020
Phosphatidylinositol phosphates (PIPs) are involved in many cellular events as important secondary messengers. In Entamoeba histolytica, a human intestinal protozoan parasite, virulence-associated mechanisms such as cell motility, vesicular traffic ...
Natsuki Watanabe, Kumiko Nakada-Tsukui, Tomohiko Maehama, Tomoyoshi Nozaki   +3 more
doaj   +1 more source

Phosphatidylinositol-4-phosphate 5-Kinase Isozymes Catalyze the Synthesis of 3-Phosphate-containing Phosphatidylinositol Signaling Molecules [PDF]

Journal of Biological Chemistry, 1997
Phosphatidylinositol-4-phosphate 5-kinases (PIP5Ks) utilize phosphatidylinositols containing D-3-position phosphates as substrates to form phosphatidylinositol 3,4-bisphosphate. In addition, type I PIP5Ks phosphorylate phosphatidylinositol 3, 4-bisphosphate to phosphatidylinositol 3,4,5-trisphosphate, while type II kinases have less activity toward ...
X, Zhang, J C, Loijens, I V, Boronenkov, G J, Parker, F A, Norris, J, Chen, O, Thum, G D, Prestwich, P W, Majerus, R A, Anderson   +9 more
openaire   +2 more sources

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Synaptojanin2 Mutation Causes Progressive High-frequency Hearing Loss in Mice

Frontiers in Cellular Neuroscience, 2020
Progressive hearing loss is very common in the human population but we know little about the underlying molecular mechanisms. Synaptojanin2 (Synj2) has been reported to be involved, as a mouse mutation led to a progressive increase in auditory thresholds
Elisa Martelletti, Neil J. Ingham, Oliver Houston, Johanna C. Pass, Jing Chen, Walter Marcotti, Walter Marcotti, Karen P. Steel   +7 more
doaj   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

The divergent ER-mitochondria encounter structures (ERMES) are conserved in parabasalids but lost in several anaerobic lineages with hydrogenosomes

BMC Biology, 2023
Background The endoplasmic reticulum (ER)-mitochondria membrane contact sites (MCS) are extensively studied in aerobic eukaryotes; however, little is known about MCS in anaerobes with reduced forms of mitochondria named hydrogenosomes.
Jitka Kučerová, Alois Zdrha, Abhishek Shinde, Karel Harant, Ivan Hrdý, Jan Tachezy   +5 more
doaj   +1 more source

Correlation of the differential expression of PIK3R1 and its spliced variant, p55α, in pan‐cancer

Molecular Oncology, EarlyView.
PIK3R1 undergoes alternative splicing to generate the isoforms, p85α and p55α. By combining large patient datasets with laboratory experiments, we show that PIK3R1 spliced variants shape cancer behavior. While tumors lose the protective p85α isoform, p55α is overexpressed, changes linked to poorer survival and more pronounced in African American ...
Ishita Gupta, Yang Song, Madeleine Ndahayo, Anirudh Saxena, Theresa Guo, Dylan Z. Kelley, Jessica Gore, Andrew Hennigan, Alexa Anderson, John C. Papadimitriou, Daria A. Gaykalova   +10 more
wiley   +1 more source

A TIR domain protein from E. faecalis attenuates MyD88-mediated signaling and NF-κB activation. [PDF]

PLoS ONE, 2014
Toll-like receptor signaling, mediated by functional Toll/interleukin-1 receptor (TIR) domains, plays a critical role in activating the innate immune response responsible for controlling and clearing infection.
Jun Zou, Arto S Baghdayan, Sarah J Payne, Nathan Shankar   +3 more
doaj   +1 more source