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Tag: "mitochondrion" at biology news

Researchers create artificial enzyme that mimics the body's internal engine

... as mitochondria. Embedded in the membrane of each mitochondrion is a structure called the electron transport chain, which produces adenosine triphosphate (ATP), a molecule that is the source of the cell's energy. The transport chain is made up of a series of proteins known as electron carriers. Each carrier recei...

Mitochondrial genes move to the nucleus -- but it's not for the sex

...f-pollinating have transferred more genes from the mitochondrion to the nucleus," said graduate student Yaniv Brand...parately, and a new and beneficial mutation in the mitochondrion could be separated from partner genes in the nucleus -- in the production of eggs or pollen, via mei...

Hopkins researchers discover genetic switch that turns off an oxygen-poor cell's combustion engine

...is that this genetic switch actively shuts off the mitochondrion under low oxygen conditions, apparently to protect...disruption of this link blocks the tendency of the mitochondrion to make toxic molecules as it struggles to produce ATP during hypoxia. These toxic molecules, called...

New protein vital for immune response is found in surprise location

...ct that MAVS is located within the membrane of the mitochondrion makes sense for a couple of reasons, Dr. Chen said. First, proteins housed within the mitochondria have been shown by researchers, such as UT Southwestern biochemist Dr. Xiaodong Wang and others, to play a role in apoptosis, or programmed cell deat...

A human parasite with a streamlined mitochondrion

... the Entamoeba mitosome may represent the simplest mitochondrion yet described, and thus it provides a model system for probing which mitochondrial functions are truly essential for eukaryotic cells. ...

Novel ultrafast laser detection of cancer cells also may improve understanding of stem cells

...ch as free glucose in the cell." Fortunately, the mitochondrion is nearly the same size as the light wavelength of about 800 nanometers, a frequency otherwise little absorbed by the body. Because of this close match, the laser is exquisitely sensitive to subtle changes in the mitochondria size and effects of clus...

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