• A recent paper from the Martin lab explores the evolutionary connection between calcium-binding beta/gamma crystallin proteins and the structural beta/gamma crystallins of the eye lens. (uci.edu)
  • Transient receptor potential (TRP) proteins are cation-selective channels that function in processes as diverse as sensation and vasoregulation. (nih.gov)
  • Fifty percent of plasma calcium is ionized, 40% is bound to proteins (90% of which binds to albumin), and 10% circulates bound to anions (eg, phosphate, carbonate, citrate, lactate, sulfate). (medscape.com)
  • These citrate salts can solve these problems by forming a matrix with the proteins in the beverage to create a stable suspension that keeps the divalent cations ideally dispersed in the milk. (dairyfoods.com)
  • Description: Description of target: The protein encoded by this gene is a member of the S100 family of proteins containing 2 EF-hand calcium-binding motifs. (microarraystation.com)
  • Binding to other ECM proteins such as collagen appears to depend on divalent cations. (utsouthwestern.edu)
  • Thus, the salts with divalent cations would be ore flocculated than those with monovalent cations at the same concentration. (baroididp.com)
  • It's possible for water to be softened via the ion exchange process when divalent cations like magnesium and calcium are exchanged with monovalent cations that are highly soluble. (sensorex.com)
  • Like all Ca(2+)-selective channels, CRAC channels lose their selectivity in divalent-free external solution to support large monovalent Na(+) currents. (ox.ac.uk)
  • It is used in research to raise the intracellular calcium level (Ca2+) and as a research tool to understand Ca2+ transport across biological membranes. (wikipedia.org)
  • As a proof of concept, we show that SS-31 alters ion distribution at the membrane interface with implications for maintaining mitochondrial membranes subject to divalent cation (calcium) stress. (biorxiv.org)
  • In the presence of divalent cations like calcium it forms stable membranes. (tu-dortmund.de)
  • It binds and transports CALCIUM and other divalent cations across membranes and uncouples oxidative phosphorylation while inhibiting ATPase of rat liver mitochondria. (bvsalud.org)
  • The total calcium concentration in the plasma is 4.5-5.1 mEq/L (9-10.2 mg/dL). (medscape.com)
  • Clinical signs and symptoms are observed only with decreases in ionized calcium concentration (normally 4.5-5.5 mg/dL). (medscape.com)
  • A decrease in the concentration of either Ca 2+ or Mg 2+ from their standard values of 1.0 and 2.0 mM respectively augmented both the amplitude and duration of the 5-HT-induced current, whereas elevating the concentration of either divalent cation produced the opposite effect. (dundee.ac.uk)
  • A decrease in the concentration of either Ca2+ or Mg2+ from their standard values of 1.0 and 2.0 mM respectively augmented both the amplitude and duration of the 5-HT-induced current, whereas elevating the concentration of either divalent cation produced the opposite effect. (dundee.ac.uk)
  • Water hardness refers to the total concentration of divalent metal cations in water. (megidoband.pl)
  • The substance is used mostly as a biochemical tool to study the role of divalent cations in various biological systems. (bvsalud.org)
  • Most abundant divalent cation in our bodies! (flashcardmachine.com)
  • Furthermore, with a K d for Mg 2+ of 9 mM, NP-caged EGTA does not bind physiological levels of Mg 2+ and thus reduces interference from this abundant cation. (thermofisher.com)
  • Long-lasting (L-type) calcium channels belong to the 'high-voltage activated' (HVA) group. (hmdb.ca)
  • Explain how a drug that interferes with the functioning of voltage-gated calcium channels could decrease the transmission of painful signals . (brainmass.com)
  • For many years Cl- channels have been well studied in neurological systems, where these channels initiate action potentials at synapses, propagate signals along axons and dendrites, and trigger neurotransmitter release and Calcium influx. (brainmass.com)
  • Permeation through store-operated CRAC channels in divalent-free solution: potential problems and implications for putative CRAC channel genes. (ox.ac.uk)
  • CRAC channels are key calcium conduits in both physiological and pathological states. (ox.ac.uk)
  • This approach has provided new insight into channel permeation and selectivity, and identifies some interesting differences between CRAC channels and voltage-operated calcium channels (VOCCs). (ox.ac.uk)
  • PTH stimulates osteoclastic bone reabsorption and distal tubular calcium reabsorption and mediates 1,25-dihydroxyvitamin D (1,25[OH] 2 D) intestinal calcium absorption. (medscape.com)
  • [ 5 ] Vitamin D stimulates intestinal absorption of calcium, regulates PTH release by the chief cells, and mediates PTH-stimulated bone reabsorption. (medscape.com)
  • This somewhat counter-intuitive effect may be explained by the binding of calcium with oxalate in the gut, which tends to decrease oxalate absorption. (stackexchange.com)
  • Solutions containing divalent cations such as calcium (Ca ++ ) and magnesium (Mg ++ ) display a two-stage permeability change that is characterized by a rapid initial degradation followed by essentially a steady-state response. (baroididp.com)
  • The influence of extracellular calcium and magnesium ion concentrations upon 5-HT 3 receptor-gated membrane currents in murine N1E-115 neuroblastoma cells has been studied under voltage-clamp conditions. (dundee.ac.uk)
  • In aqueous intracellular and extracellular spaces, fluoride complexes with divalent cations (calcium, magnesium), forming insoluble calcium fluoride and magnesium fluoride. (msdmanuals.com)
  • Less than 1% (5-6 g) of this calcium is located in the intracellular and extracellular compartments, with only 1.3 g located extracellularly. (medscape.com)
  • These changes are recognized by the calcium-sensing receptor (CaSR), a 7-transmembrane receptor linked to G-protein with a large extracellular amino-terminal region. (medscape.com)
  • In contrast, the human lens protein gammaS-crystallin, which contains defunct calcim-binding sites binding sites, does not bind any divalent cations and aggregates readily in the presence of zinc. (uci.edu)
  • The isoform alpha-1F gives rise to L-type calcium currents. (hmdb.ca)
  • Peters, JA , Hales, TG & Lambert, JJ 1988, ' Divalent cations modulate 5-HT3 receptor-induced currents in N1E-115 neuroblastoma cells ', European Journal of Pharmacology , vol. 151, no. 3, pp. 491-495. (dundee.ac.uk)
  • Increasing temperature from 22 degrees C to 40 degrees C in mammalian cells transfected with hTRPV3 elevated intracellular calcium by activating a nonselective cationic conductance. (nih.gov)
  • TRPV6 seemed a very attractive candidate, but one of the main arguments supporting it was a single-channel conductance in divalent-free solution similar to that for CRAC reported under conditions where MagNuM is active. (ox.ac.uk)
  • Effect of Postharvest Calcium Chloride Treatment on the Storage Life and Quality of Persimmon Fruits (Diospyros kaki Thunb. (ac.ir)
  • Karaj' stored at 0°C for 4 months after postharvest calcium chloride treatment. (ac.ir)
  • 2010. Effect of Calcium Chloride Treatments on Quality Characteristic of Loquat Fruit During Storage. (ac.ir)
  • 2012. Effect of Post-Harvest Calcium Chloride Dip Treatment and Gamma Irradiation on Storage Quality and Shelf-Life Extension of Red Delicious Apple. (ac.ir)
  • Calcium is required for muscle contractions and also for many cells (like neurons) to properly secrete signals and hormones. (brainmass.com)
  • On the other hand, a slight decrease in calcium stimulates the chief cells of the parathyroid gland to secrete PTH. (medscape.com)
  • Calcium is necessary for bone mineralization and is an important cofactor for hormonal secretion in endocrine organs. (medscape.com)
  • The developed process achieves around 70% phosphorus recovery as an industrial-grade (19 wt% P) dicalcium phosphate dihydrate product with minimal iron, magnesium, and aluminum contamination, while also producing value-added calcium sulfate dihydrate (gypsum) and iron/magnesium byproducts. (rsc.org)
  • The tunicate beta/gamma crystallin from Ciona intestinalis, which is known to bind calcium, is also capable of binding a wide variety of other divalent cations, which is highly unusual for a metal-binding protein. (uci.edu)
  • Metal-ion binding occurs at the protein's calcium binding sites and greatly enhances its thermal stability. (uci.edu)
  • The active moiety patiromer is a carboxylic acid compound with a relatively low molecular weight, enabling a high binding capacity for cations. (bjcardio.co.uk)
  • 2002. Pre- and Postharvest Calcium Treatment of Apple Fruit and its Effect on Quality. (ac.ir)
  • Ionized calcium is the necessary plasma fraction for normal physiologic processes. (medscape.com)
  • While alkaline water is generally believed to have less contaminants than acidic water, an alkaline solution may contain high levels of magnesium and calcium, which can lead to the development of hard water . (sensorex.com)
  • Studies in divalent-free solution are a double-edged sword, however. (ox.ac.uk)
  • 1. We examined, in frog semitendinosus muscle, the effect of calcium release, induced by depolarization or caffeine, on intracellular pH (pH i ) recovery from an acid load applied at least 40 min later. (wright.edu)
  • We also studied the effect of external Ca and other divalent cations on recovery. (wright.edu)
  • The recommendation to decrease calcium intake, then, appears not to be valid. (stackexchange.com)
  • Further studies have refined this recommendation, and it is now generally said that a normal calcium intake is probably best. (stackexchange.com)
  • In 1993, a study published in the New England Journal of Medicine dispelled the notion that a low calcium diet should be advised for these patients. (stackexchange.com)
  • The essential functions of this divalent cation continue to be elucidated, particularly in head injury/stroke and cardiopulmonary disorders. (medscape.com)
  • On occasion, severe hypocalcemia may result in seizures, tetany, refractory hypotension, or arrhythmias that require a more aggressive approach, including intravenous infusions of calcium. (medscape.com)