The pH of calcium ions controls ion channel opening

Ion channels are pores in the membrane of cells or cell organelles. They allow positively or negatively charged particles, so-called ions, to be transported across the membrane. Biochemists at Johannes Gutenberg University ...

Single molecule puts sperm on track

Sperm start their sprint to the ovum when they detect changes in the environment through a series of calcium channels arranged like racing stripes on their tails. A team of Yale researchers has identified a key molecule that ...

New study uncovers the interaction of calcium channels

Korean researchers have identified the interactions of the combinants among calcium channel proteins that exist in nerve and heart cells. The result opened a new path of developing treatments for high blood pressure and brain ...

Communication via calcium wave

Based on what we know today, the plant hormone auxin influences all aspects of plant growth and development. It makes corn thrive from germination to harvest, causes trees to grow skyward and date palms to produce sweet fruits. ...

Electron microscope images reveal how cells absorb a vital mineral

Columbia University Medical Center (CUMC) researchers have obtained the first detailed snapshots of the structure of a membrane pore that enables epithelial cells to absorb calcium. The findings could accelerate the development ...

An amino acid controls plants' breath

Plants breathe and "sweat" through stomata, microscopic pores found on leaves, stems and other plant organs. Through the stomata, plants take up carbon dioxide for photosynthesis and breathe out the products of this process, ...

Calcium channel blockers caught in the act at atomic level

An atomic level analysis has revealed how two classes of calcium channel blockers, widely prescribed for heart disease patients, produce separate therapeutic effects through their actions at different sites on the calcium ...

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