Results 31 to 40 of about 12,824 (233)

Multiple Inositol Polyphosphate Phosphatase Compartmentalization Separates Inositol Phosphate Metabolism from Inositol Lipid Signaling

Biomolecules, 2023
Multiple inositol polyphosphate phosphatase (MINPP1) is an enigmatic enzyme that is responsible for the metabolism of inositol hexakisphosphate (InsP6) and inositol 1,3,4,5,6 pentakisphosphate (Ins(1,3,4,5,6)P5 in mammalian cells, despite being ...
Jia Yu, Barbara Leibiger, Shao-Nian Yang, Stephen B. Shears, Ingo B. Leibiger, Per-Olof Berggren, Christopher J. Barker   +6 more
doaj   +1 more source

Finding a needle in a haystack: the role of electrostatics in target lipid recognition by PH domains. [PDF]

PLoS Computational Biology, 2012
Interactions between protein domains and lipid molecules play key roles in controlling cell membrane signalling and trafficking. The pleckstrin homology (PH) domain is one of the most widespread, binding specifically to phosphatidylinositol phosphates ...
Craig N Lumb, Mark S P Sansom
doaj   +1 more source

Regulation of autophagy by phosphatidylinositol 3‐phosphate [PDF]

FEBS Letters, 2010
The simple phosphoinositide phosphatidylinositol 3‐phosphate (PI(3)P) has been known to have important functions in endocytic and phagocytic traffic, and to be required for the autophagic pathway. In all of these settings, PI(3)P appears to create platforms that serve to recruit specific effectors for membrane trafficking events.
Burman, Chloe, Ktistakis, Nicholas T.
openaire   +2 more sources

HD-PTP is a catalytically inactive tyrosine phosphatase due to a conserved divergence in its phosphatase domain. [PDF]

PLoS ONE, 2009
The HD-PTP protein has been described as a tumor suppressor candidate and based on its amino acid sequence, categorized as a classical non-transmembrane protein tyrosine phosphatase (PTP).
Marie-Claude Gingras, Yu Ling Zhang, Dmitri Kharitidi, Alastair J Barr, Stefan Knapp, Michel L Tremblay, Arnim Pause   +6 more
doaj   +1 more source

Essential lipid autacoids rewire mitochondrial energy efficiency in metabolic dysfunction‐associated fatty liver disease

Hepatology, EarlyView., 2022
Increased liver content of DHA‐derived small lipid autacoids (i.e resolvin D1 and maresin 1) associates with enhanced mitochondrial oxidative phosphorylation, fatty acid β‐oxidation and bioenergetic metabolic flux. These features provide hepatic protection from steatotic, pro‐inflammatory and fibrogenic insults.
Cristina López‐Vicario, David Sebastián, Mireia Casulleras, Marta Duran‐Güell, Roger Flores‐Costa, Ferran Aguilar, Juan José Lozano, Ingrid W. Zhang, Esther Titos, Jing X. Kang, Antonio Zorzano, Makoto Arita, Joan Clària   +12 more
wiley   +1 more source

Combinatorial targeting of G‐protein‐coupled bile acid receptor 1 and cysteinyl leukotriene receptor 1 reveals a mechanistic role for bile acids and leukotrienes in drug‐induced liver injury

Hepatology, EarlyView., 2022
CHIN117 is a dual cysteinyl leukotriene receptor 1 (CYSLTR1) antagonist and G‐protein‐coupled bile acid receptor 1 (GPBAR1) agonist. In the liver, GPBAR1 and CYSLTR1 are coexpressed by liver sinusoidal endothelial cells (LSECs), HSCs, circulating monocytes/macrophages, and liver resident macrophages (Kupffer cells).
Michele Biagioli, Silvia Marchianò, Cristina di Giorgio, Rosalinda Roselli, Martina Bordoni, Rachele Bellini, Bianca Fiorillo, Valentina Sepe, Bruno Catalanotti, Chiara Cassiano, Maria Chiara Monti, Eleonora Distrutti, Angela Zampella, Stefano Fiorucci   +13 more
wiley   +1 more source

Cyclodextrins enhance recombinant phosphatidylinositol phosphate kinase activity [PDF]

Journal of Lipid Research, 2004
Inositol lipid kinases have been studied extensively in both plant and animal systems. However, major limitations for in vitro studies of recombinant lipid kinases are the low specific activity and instability of the purified proteins. Our goal was to determine if cyclodextrins would provide an effective substrate delivery system and enhance the ...
Amanda J. Davis, Imara Y. Perera, Wendy F. Boss   +2 more
openaire   +3 more sources

Regulation of CK2 Activity by Phosphatidylinositol Phosphates [PDF]

Journal of Biological Chemistry, 2005
The process of clathrin-coated vesicle (CCV) formation/disassembly involves numerous proteins that act cooperatively. Phosphorylation is an important regulatory mechanism governing protein interactions in CCVs, and many of the core and accessory proteins of the CCV machinery are reversibly phosphorylated in vivo.
Korolchuk, VI, Cozier, G, Banting, G
openaire   +3 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source