Physics-based machine learning for modeling stochastic IP3-dependent calcium dynamics [PDF]
We present a machine learning method for model reduction which incorporates domain-specific physics through candidate functions. Our method estimates an effective probability distribution and differential equation model from stochastic simulations of a reaction network.
arxiv
Inositol Pyrophosphate Pyrotechnics [PDF]
Physiologic roles of highly phosphorylated inositol phosphates, including those containing pyrophosphate groups, have been the focus of much recent interest. In the April 6, 2007 issue of Science, two papers (Lee et al., 2007; Mulugu et al., 2007) demonstrate the occurrence of a novel inositol pyrophosphate molecule in yeast and elucidate its role in ...
Solomon H. Snyder+2 more
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Inhibitors of Inositol Monophosphatase [PDF]
Inositol monophosphatase (IMPase) catalyses the hydrolysis of myo-inositol monophosphates to myo-inositol, which is required in the phosphatidyl inositol cell signalling pathway. Here the enzyme structure, mechanism and inhibition of IMPase are reviewed. Lithium, an effective therapy for manic depression, is an uncompetitive inhibitor.
Fauroux, Christine M J, Freeman, Sally
openaire +4 more sources
Mammalian inositol polyphosphate multikinase synthesizes inositol 1,4,5-trisphosphate and an inositol pyrophosphate [PDF]
Using a consensus sequence in inositol phosphate kinase, we have identified and cloned a 44-kDa mammalian inositol phosphate kinase with broader catalytic capacities than any other member of the family and which we designate mammalian inositol phosphate multikinase (mIPMK).
Akira Sawa+6 more
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An amphitropic cAMP-binding protein in yeast mitochondria [PDF]
: We describe the first example of a mitochondrial protein with a covalently attached phos-phatidylinositol moiety acting as a membrane anchor. The protein can be metabolically labeled with both stearic acid and inositol.
Bandlow W.+43 more
core +3 more sources
Efficiency of the D-chiro-inositol for the polycystic ovary syndrome
Polycystic ovary syndrome (PCOS) is a common endocrine disorder that develops in 10–15% of reproductive aged women. Over the past two decades, the inositol effectiveness in normalizing the clinical and hormonal disorders associated with PCOS has been ...
Т. Л. Архипкина+1 more
doaj +1 more source
GTP and Ca2+ Modulate the Inositol 1,4,5-Trisphosphate-Dependent Ca2+ Release in Streptolysin O-Permeabilized Bovine Adrenal Chromaffin Cells [PDF]
The inositol 1,4,5-trisphosphate (IP3)-induced Ca2+ release was studied using streptolysin O-permeabilized bovine adrenal chromaffin cells. The IP3-induced Ca2+ release was followed by Ca2+ reuptake into intracellular compartments.
Ahnert-Hilger G.+23 more
core +1 more source
A metabolomic approach to animal vitreous humor topographical composition: A pilot study [PDF]
The purpose of this study was to evaluate the feasibility of a 1H-NMR-based metabolomic approach to explore the metabolomic signature of different topographical areas of vitreous humor (VH) in an animal model.
ATZORI, LUIGI+8 more
core +1 more source
Effects of inositol starvation on the levels of inositol phosphates and inositol lipids in Neurospora crassa [PDF]
An inositol-requiring strain of Neurospora crassa was labelled during growth in liquid medium with [3H]inositol, and the levels of inositol phosphates and phosphoinositides were determined under inositol-sufficient and inositol-starved conditions.
openaire +3 more sources
A Solanum tuberosum inositol phosphate kinase (StITPK1) displaying inositol phosphate–inositol phosphate and inositol phosphate–ADP phosphotransferase activities [PDF]
We describe a multifunctional inositol polyphosphate kinase/phosphotransferase from Solanum tuberosum, StITPKα (GenBank accession number: EF362784), hereafter called StITPK1. StITPK1 displays inositol 3,4,5,6‐tetrakisphosphate 1‐kinase activity: K m = 27 μM, and V max = 19 nmol min−1 mg−1.
Caddick, Samuel E. K.+5 more
openaire +4 more sources