Tag: "membranes" at biology news
New science at K-State attracts $4.2 million from National Science Foundation
...g the lipid molecular species that constitute cell membranes
as well as other lipid metabolites. Collaborative ...ntist. Lipids are the structural backbone for cell membranes
of plants, animals and humans. They are the sources of metabolic energy, and the sources of regulato...
Of mice and memory
..."Our molecules are small. They can get through the membranes
and interact with more than one molecule of free radicals." For the study funded by the National Institute on Aging Baudry teamed up with Richard Thompson, the Keck Professor of Psychology and Biological Sciences at USC, and a colleague at the Uni...
'Mimics' may open screen(ing) door to GPCR drugs
...light-sensing protein that lies deeply embedded in membranes
of retina cells of the eye.Next, these mimics may open the door for drug designers to use x-rays, nuclear magnetic resonance(NMR), and other high-resolution structural tools to study the detailed workings of rhodopsin and other members of the superfa...
Hebrew University researchers develop method to improve neutraceutical absorption
...lets carry the nutraceutical nanoparticals through membranes
and release them upon reaching their destination. The microemulsions are highly dilutable and also can be turned into powders. As a result, they can be used as liquid or powder food additives or taken on their own. Each microemulsion must be specific...
Barrel structure in globular proteins may transport small molecules
...guide small molecules to reaction sites and across membranes
is essential to many metabolic pathways, but the process is not well understood. Now, scientists at the University of Illinois at Urbana-Champaign have shown that a globular protein with a barrel structure can direct small molecules in much the same...
UI researchers discover new cause of muscular dystrophies
... known cause where genetic mutations weaken muscle membranes
and make muscles more prone to damage. "This told ...s. Previous studies have shown that resealing cell membranes
requires the accumulation and fusing of vesicles to repair the damaged site. Using an electron micro...
Novel gene therapy on the horizon, says Brenner Children's Hospital pediatrician
...covered a new way to transmit proteins across cell membranes
a finding that in the future might prevent or tre...erfecting the delivery of the proteins across cell membranes
and are ready to begin animal studies on the technology once they receive additional research fundin...
Five UCSF faculty scientists elected to National Academy of Sciences
...he cell. His research focuses on how signals cross membranes
and how membrane proteins and channels within membranes
work at the level of atomic structure. His laboratory also develops methods to quantify the relation...
Purification of signaling protein may boost tissue engineering
...oduced, which gives it a tendency to stick to cell membranes
where it is active," said Nusse. "However, that means the protein also was not soluble and would stick to containers, so standard purification techniques didn't work." Nusse and his colleagues developed techniques that used detergents to render the p...
Membrane separation technology produces myriad applications in numerous industries
... membrane separation technologies. Next-generation membranes
are expected to add to the advantages of membrane separation over traditional, competing technologies such as cryogenic distillation and selective adsorption and absorption processes. "Membranes have an advantage in that they can be cost-effectively ...
Discovery of gene for premature aging syndrome reported in Science
...s up, allowing the nucleus to split in two. As new membranes
form around each of the two nuclei, the lamins then reweave themselves back into new meshwork linings. Cells with defective lamin proteins divide improperly and die prematurely, impairing tissues' ability to regenerate. Disorders caused by defective...
Alzheimer's protein jams mitochondria of affected cells; resulting 'energy crisis' kills neurons
...itochondria appear to be the only organelles whose membranes
have trouble handling APP. It remains unclear whether APP gets stuck in mitochondria's protein entryways because of its negative charge or bulkiness attributable to improper protein folding. Avadhani and Anandatheerthavarada plan to study the questi...
Researchers identify new gene associated with breast cancer
...5 is released from the dying cell through internal membranes
into surrounding tissue. Researchers are working to develop a diagnostic test to detect the presence of C35 protein or antibodies to that protein in a patient's blood and to develop potential treatments. Researchers believe that traditional treatme...
Cells use patch to heal tears, avoid destruction and disease
...cium ions from outside the cell rush in, prompting membranes
inside the cell to fuse and patch the hole. The ce... one cell in the body known to lack these internal membranes
and documenting its inability to self-repair. By contrast, his work, published in this weeks Procee...
A new class of catalysts will help boost production, quality of transportation fuels
...chanism of permeation in hydrogen-selective silica membranes
(Fuel 129)," at 4:30 p.m. on March 25 in the Convention Center, Room 398....
First sightings of individual proteins as they fold
...mposed of lipids (the same materials that form the membranes
of living cells), are 100 nanometers wide. Thus, they are much larger than the proteins yet narrow enough to be fully lit by a tightly focused laser beam (which is around 300 nanometers wide). They are attached to a clean glass surface, making their ...
Nanotech decoys for viruses
...ctosyl ceramide, or GalCer. GalCer is found in the membranes
of many different types of cell, including cells l...ying how GalCer forms these patterns in artificial membranes
and how they affect binding to viruses. If the researchers find a pattern that maximizes binding, t...
Mutation causes specific arrhythmia and sudden cardiac death
...pecially those that like the heart, have excitable membranes
responsible for proper organ function. These organs include the nervous system, the lining of the lungs and the kidneys, and beta cells in the pancreas that are responsible for release of insulin....
Deadly coral toxin exposes ion pump's deepest secret
Right now, in your body, tiny pumps in the fatty membranes
surrounding allyour cells are hard at work pushing select charged ions, such as sodium,potassium or calcium, through those membranes. Like a water pump in ahigh-rise apartment building overcoming the force of gravity to move waterup to a tank on its ...
American Physical Society March Meeting 2003
...ior of cells. Cells are complex systems with outer membranes
separating them from a wider environment and an inner membrane surrounding the cell nucleus. Daniel Branton (Harvard) and his colleagues have created an artificial membrane consisting of silicon-nitride substrate with a nanopore only nm in diameter. ...
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