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Sphingosine kinases, through the formation of the bioactive phospholipid sphingosine 1‐phosphate, have been implicated in a diverse range of cellular processes, including cell proliferation, apoptosis, calcium homeostasis, angiogenesis and vascular maturation. The last few years have seen a...
The sphingomyelin pathway is activated in response to many apoptotic stimuli leading to the accumulation of breakdown products ceramide and sphingosine. Ceramide has received much attention as an apoptotic second messenger whereas sphingosine has largely been overlooked as a mediator of...
Phosphoinositide signaling molecules control cellular growth, proliferation and differentiation, intracellular vesicle trafficking, and cytoskeletal rearrangement. The inositol polyphosphate 5‐phosphatase family remove the D‐5 position phosphate from PtdIns(3,4,5)P3, PtdIns(4,5)P2 and...
Peanut Agglutinin (PNA) is a legume lectin with a unique open quarternary structure. It is a homotetrameric protein, the monomeric subunit of which is made up of 3 β sheets. The structural change in this protein has been induced by 2,2,2‐trifluoroethanol (TFE) at two different pH. At neutral...
SARS‐CoV spike (S) protein‐mediated cell fusion is important for the viral entry mechanism and identification of SARS‐CoV entry inhibitors. In order to avoid the high risks involved in handling SARS‐CoV and to facilitate the study of viral fusion mechanism, we established the cell lines:...
Phospholipase D (PLD) hydrolyzes the phosphodiester bond of the predominant membrane phospholipid, phosphatidylcholine producing phosphatidic acid and free choline. This activity can participate in signal transduction pathways and impact on vesicle trafficking for secretion and endocytosis, as...
Protein phosphatase‐1 (PP1) is a member of the eukaryotic serine/threonine phosphatase gene family. The β12‐β13 loop is a prominent non‐conserved region among the family, and extends from the surface and overhangs the active site. To investigate the function of the β12‐β13 loop of...
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