News tagged with calcium ions

Related topics: protein

Cracking brain memory code

(Medical Xpress) -- Despite a century of research, memory encoding in the brain has remained mysterious. Neuronal synaptic connection strengths are involved, but synaptic components are short-lived while memories last lifetimes. ...

Mar 09, 2012
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New clues to molecular understanding of autism

The first transgenic mouse model of a rare and severe type of autism called Timothy Syndrome is improving the scientific understanding of autism spectrum disorder in general and may help researchers design more targeted interventions ...

Sep 12, 2011
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Immunity restrained by ion influx

B cells maintain stockpiles of calcium ions (Ca2+), which are released during the course of the immune response. When the presence of a foreign antigen stimulates the B cell receptor (BCR) complex, t ...

Jul 22, 2011
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Amplifying communication between neurons

Neurons send signals to each other across small junctions called synapses. Some of these signals involve the flow of potassium, calcium and sodium ions through channel proteins that are embedded within the ...

Jan 17, 2014
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Channeling into cell control

A research team from the RIKEN Brain Science Institute in Wako, Japan, has visualized and accurately modeled the molecular changes that open and close the internal membrane channels for calcium ions within ...

Jan 20, 2012
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Calcium

Calcium (pronounced /ˈkælsiəm/) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078 amu. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth's crust. Calcium is also the fifth most abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate.

Calcium is essential for living organisms, particularly in cell physiology, where movement of the calcium ion Ca2+ into and out of the cytoplasm functions as a signal for many cellular processes. As a major material used in mineralization of bones and shells, calcium is the most abundant metal by mass in many animals.

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