Sarcoplasmic Reticulum
Decavanadate interactions with sarcoplasmic reticulum calcium pump
... with sarcoplasmic reticulum ATPase is favoured during enzyme phosphorylation by ATP, probably by forming an ATP intermediate adduct or by condensation with the aspartylphosphate group [15, ...
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Interactions of vanadium(V)–citrate complexes with the sarcoplasmic reticulum calcium pump
... It is known that vanadium ions and vanadium com- plexes inhibit or stimulate the activity of various enzymes. In the case of the membrane bound E1–E2 Ca 2+ -ATPase (calcium pump) from sarcoplasmic reticulum ...
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Decavanadate, decaniobate, tungstate and molybdate interactions with sarcoplasmic reticulum Ca2+-ATPase: quercetin prevents cysteine oxidation by vanadate but does not reverse ATPase inhibition
... Isolated sarcoplasmic reticulum vesicles (SRV), prepared from skeletal rabbit muscles, were suspended in ...endoplasmic reticulum Ca 2+ -ATPase-1) was the predominant isoform in our SR ...
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Sarcoplasmic Reticulum Calcium ATPase Is Inhibited by Organic Vanadium Coordination Compounds: Pyridine-2,6-dicarboxylatodioxovanadium(V), BMOV, and an Amavadine Analogue
... spectroscopy was used to determine the interaction of vanadium complexes with the calcium pump. The effects of three well-characterized complexes, the pyridine-2,6-dicar- boxylatodioxovanadium(V) (PDC-V(V)), ...
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Down-regulation of the cardiac sarcoplasmic reticulum ryanodine channel in severely food-restricted rats
... The present study provides important in- formation about a significant decrease of myocardial RYR2 mRNA expression ac- companied by no alterations in PLB or SERCA2 mRNA expression. These results suggest that food ...
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A low-dose β1-blocker in combination with milrinone improves intracellular Ca2+ handling in failing cardiomyocytes by inhibition of milrinone-induced diastolic Ca2+ leakage from the sarcoplasmic reticulum.
... (cAMP)-dependent protein kinase A (PKA) phosphorylation via β-adrenergic stimulation [2, 5, 33, 34]. However, in chronic heart failure, intracellular Ca 2+ overload and Ca 2+ depletion in SR are due not only to Ca 2+ ...
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Waves of calcium depletion in the sarcoplasmic reticulum of vascular smooth muscle cells: an inside view of spatiotemporal Ca2+ regulation.
... Heat map generated from the time-lapse fluorescence microscopy movie (10 s intervals) of rat SMCs treated with ET-1 (100 nM) in nominally free extracellular Ca 2 + , showing that the SR [r] ...
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Crosstalk between mitochondrial and sarcoplasmic reticulum Ca2+ cycling modulates cardiac pacemaker cell automaticity.
... (A) Mean mitochondrial fluorescence intensity in response to specific inhibition of mitochondrial Ca 2 + influx or efflux (n = 10 for each drug), (B) AP recordings (before and after 15 m[r] ...
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Ca(2+) release events in cardiac myocytes up close: insights from fast confocal imaging.
... sarcoplasmic reticulum (SR) Ca 2+ release channels (ryanodine receptors, RyRs) through a process known as calcium-induced calcium release (CICR; [2]). RyRs and LCCs face each other in the diadic cleft ...
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Actas de bioquímica : temas e sessões internas
... In the absence of oxalate, the Ca 2+ -ATPase inhibition by compound 48/80 is significantly increased at high temperatures (~37 o C) and at low Ca 2+ concentrations (<10 -5 M). Compound 48/80 decreases the affinity of ...
171
Fusion of the endoplasmic reticulum and mitochondrial outer membrane in rats brown adipose tissue: activation of thermogenesis by Ca2+.
... muscle sarcoplasmic reticulum [16,32]; (ii) Ca 2+ activates only heat production and has no influence in the rate of oligomycin-sensitive ATP synthesis (Table 1); (iii) In the presence of Ca 2+ , there is a ...
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Efeitos do treinamento físico combinado com insulinoterapia sobre o miocárdio de ratos com diabetes induzida
... of mitochondrial Ca 2+ uptake in mitochondria isolated from diabetic hearts. Mitochondria are sensitive to Ca 2+ concentration, which is important for the modulation of mitochondrial metabolism. These organelles may act ...
122
The Curcumin Analog C-150, Influencing NF-κB, UPR and Akt/Notch Pathways Has Potent Anticancer Activity In Vitro and In Vivo.
... A novel monocarbonyl analogue of curcumin, (1E,4E)-1,5-bis(2,3-dimethoxyphenyl) penta-1,4-dien-3-one, induced cancer cell H460 apoptosis via activation of endoplasmic reticulum stress si[r] ...
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FRET peptides reveal differential proteolytic activation in intraerythrocytic stages of the malaria parasites Plasmodium berghei and Plasmodium yoelii
... Using fluorescence resonance energy transfer (FRET) peptides, we verified protease activity elicited by Ca 2+ from the endoplasmatic reticulum (ER) after stimulation with thapsigargin (a[r] ...
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The Mycobacterium tuberculosis phagosome is a HLA-I processing competent organelle.
... This pathway is characterized by proteasomal degradation, transport of peptide fragments into the endoplasmic reticulum (ER) by TAP (trans- porter associated with antigen processing), ER[r] ...
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rev. educ. fis. vol.23 número especial
... endoplasmic reticulum (ER) stress and inlammation and based on the fact that downhill running-based overtraining (OT) model increases hypothalamus levels of some pro-inlammatory cytokines, we veriied the effects ...
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Proteomic analysis of the shistosome tegument and its surface membranes
... Furthermore, Diagrammatic representation of the Schistosoma mansoni tegument and an associated cell body (not to scale). BM: basal membrane; DB: discoid body; ER: endoplasmic reticulum[r] ...
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Role of LARP6 and nonmuscle myosin in partitioning of collagen mRNAs to the ER membrane.
... endoplasmic reticulum (ER), Golgi (GOL), early endosomes (EE) or cytosol (CYT) and the fractions were analyzed by western blot for presence of collagen a1(I) (COL1A1), collagen a2(I) (COL1A2) and fibronectin (FIB) ...
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BC2 - MYCOPLASMA OBSERVATIONS IN TRICHOMONAS
... endoplasmatic reticulum) around the parasitophorous vacuole of two distinct cell types: a phagocytic and a non-phagocytic ...endoplasmic reticulum of LLCMK2 cells (epithelial cells from Macaca mulata ...
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Transformation of lipid bodies related to hydrocarbon accumulation in a green alga, Botryococcus braunii (Race B).
... endoplasmic reticulum; G, Golgi body; m-CW, mother cell wall; M, mitochondrion; N, nucleus; n-CW, new cell wall; PM, plasma membrane; TGN, trans-Golgi network; * lipid body; **, oil droplet on the cell surface; ...
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