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The Arabidopsis eATP receptor, DORN1 and CNGC19 channel act in tandem to regulate plant defense upon Spodoptera litura herbivory.
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National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi 110067, India.
Plants deploy cellular Ca2+ elevation as a signal for environmental stress signaling. Extracellular ATP (eATP) is released into the extracellular matrix when cells are wounded. DOES NOT RESPOND TO NUCLEOTIDES 1 (DORN1), a key legume-type lectin receptor, senses and binds eATP and activates Ca2+ signaling.
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Department of Neurology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
Reactive astrogliosis and acidosis, common features of epileptogenic lesions, express a high level of astrocytic acid-sensing ion channel-1a (ASIC1a), a proton-gated cation channel and key mediator of responses to neuronal injury. This study investigates the role of astrocytic ASIC1a in cognitive impairment following epilepsy. Status epilepticus (SE) in C57/BL6 mice was induced using lithium-pilocarpine; the impact of ASIC1a on astrocytes was assessed using rAAV-ASIC1a-NC and rAAV-ASIC1a-shRNA, injected in the CA3 region of mice.
View Article and Find Full Text PDFProbing the Dual Role of Ca in the LH1-RC Complex by Constructing and Analyzing Ca-Bound and Ca-Free LH1 Complexes.
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Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
The genome of the mildly thermophilic hot spring purple sulfur bacterium, (.) , contains a multigene family that encodes a series of α- and β-polypeptides, collectively forming a heterogeneous light-harvesting 1 (LH1) complex. The LH1, therefore, offers a unique model for studying an intermediate phenotype between phototrophic thermophilic and mesophilic bacteria, particularly regarding their LH1 transition and moderately enhanced thermal stability.
View Article and Find Full Text PDFCalreticulin-From the Endoplasmic Reticulum to the Plasma Membrane-Adventures of a Wandering Protein.
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Department of Pathology, Dalhousie University, Halifax, NS B3H 1X5, Canada.
Calreticulin (CRT) is a 46 kDa highly conserved protein initially identified as calregulin, a prominent Ca-binding protein of the endoplasmic reticulum (ER). Subsequent studies have established that CRT functions in the ER's protein folding response and Ca homeostatic mechanisms. An ER retention signal on the carboxyl terminus of CRT suggested that CRT was restricted to the ER.
View Article and Find Full Text PDFTranscriptomic Profile Analysis of Brain Tissue in the Absence of Functional TRPM8 Calcium Channel.
Biomedicines
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Department of Cancer Biology and Pharmacology, University of Illinois College of Medicine Peoria, Peoria, IL 61605, USA.
Transient Receptor Potential Melastatin 8 (TRPM8) is a non-selective, Ca-permeable cation channel involved in thermoregulation and other physiological processes, such as basal tear secretion, cell differentiation, and insulin homeostasis. The activation and deactivation of TRPM8 occur through genetic modifications, channel interactions, and signaling cascades. Recent evidence suggests a significant role of TRPM8 in the hypothalamus and amygdala related to pain sensation and sexual behavior.
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