Finding a needle in a haystack: the role of electrostatics in target lipid recognition by PH domains. [PDF]
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
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+6 more
doaj +1 more source
Highlights of recent progress in plant lipid research [PDF]
Raw fossil material reserves are not inexhaustible and as prices continue to raise it is necessary to find new sources of alternative and renewable energy.
Andersson+43 more
core +1 more source
Structural analyses of the Slm1-PH domain demonstrate ligand binding in the non-canonical site. [PDF]
BACKGROUND: Pleckstrin homology (PH) domains are common membrane-targeting modules and their best characterized ligands are a set of important signaling lipids that include phosphatidylinositol phosphates (PtdInsPs). PH domains recognize PtdInsPs through
Kanchan Anand+2 more
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Phosphatidylinositol(4,5)bisphosphate and Phosphatidylinositol(4)phosphate in Plant Tissues [PDF]
Pea (Pisum sativum) leaf discs or swimming suspensions of Chlamydomonas eugametos were radiolabeled with [(3)H]myo-inositol or [(32)P]Pi and the lipids were extracted, deacylated, and their glycerol moieties removed. The resulting inositol trisphosphate and bisphosphate fractions were examined by periodate degradation, reduction and dephosphorylation ...
A. J. Letcher+5 more
openaire +3 more sources
Allosteric enhancement of ORP1-mediated cholesterol transport by PI(4,5)P2/PI(3,4)P2
Phosphatidylinositol phosphates (PIPs) and cholesterol are known to regulate the function of late endosomes and lysosomes (LELs). Here authors unveil a mechanism by which PI(4,5)P2/PI(3,4)P2 allosterically enhances ORP1-mediated cholesterol exit from ...
Jiangqing Dong+11 more
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In silico Modeling of Itk Activation Kinetics in Thymocytes Suggests Competing Positive and Negative IP4 Mediated Feedbacks Increase Robustness [PDF]
The inositol-phosphate messenger inositol(1,3,4,5)tetrakisphosphate (IP4) is essential for thymocyte positive selection by regulating plasma-membrane association of the protein tyrosine kinase Itk downstream of the T cell receptor (TCR). IP4 can act as a soluble analog of the phosphoinositide 3-kinase (PI3K) membrane lipid product phosphatidylinositol ...
arxiv +1 more source
Nbr1 Is a Novel Inhibitor of Ligand-Mediated Receptor Tyrosine Kinase Degradation [PDF]
endocytic trafficking and selective autophagy. However, the exact function of Nbr1 in these contexts has not been studied in detail. Here we investigated the role of Nbr1 in the trafficking of receptor tyrosine kinases (RTKs).
Auciello, Giulio+4 more
core +2 more sources
Inorganic polyphosphate modulates TRPM8 channels. [PDF]
Polyphosphate (polyP) is an inorganic polymer built of tens to hundreds of phosphates, linked by high-energy phosphoanhydride bonds. PolyP forms complexes and modulates activities of many proteins including ion channels.
Eleonora Zakharian+4 more
doaj +1 more source
HD-PTP is a catalytically inactive tyrosine phosphatase due to a conserved divergence in its phosphatase domain. [PDF]
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+6 more
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