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Genetics News
Mon, 26 Jan 2015 16:47:40 EST
Relationship critical for how cells ingest matter
To survive and fulfill their biological functions, cells need to take in material from their environment. In this process, proteins within the cell pull inward on its membrane, forming a pit that eventually encapsulates the material in a bubble called a vesicle. Researchers have now revealed a relationship that governs this process, known as endocytosis.
Mon, 26 Jan 2015 16:46:38 EST
3D enzyme model provides new tool for anti-inflammatory drug development
To better understand PLA2 enzymes and help drive therapeutic drug development, researchers developed 3-D computer models that show exactly how two PLA2 enzymes extract their substrates from cellular membranes.
Mon, 26 Jan 2015 15:05:06 EST
Researchers image, measure tubulin transport in cilia
The mechanism behind tubulin transport and its assembly into cilia have been observed in a new study, including the first video imagery of the process. "Cilia are found throughout the body, so defects in cilia formation affect cells that line airways, brain ventricles or the reproductive track," said the study's lead author.
Mon, 26 Jan 2015 11:22:43 EST
How tropical parasite hijacks cells
Scientists have pinned down how a dangerous tropical parasite which is transmitted by ticks manages to turn healthy cells into cancer-like invasive cells, according to research. Microscopic Theileria parasites infect the blood of mammals, particularly cattle, causing serious illness.
Mon, 26 Jan 2015 11:21:01 EST
New mechanism to aid cells under stress identified
New details in a cellular mechanism that serves as a defense against stress have been identified by a team of biologists. The findings potentially offer insights into tumor progression and neurodegenerative diseases, such as Parkinson's and Alzheimer's -- the cell's inability to respond to stress is a major cause of these diseases.
Mon, 26 Jan 2015 09:59:15 EST
Frogs prove ideal models for studying developmental timing
Thyroid hormone receptor alpha plays an important role in hind limb development in frogs, scientists have found. With new gene mutation technology, researchers were able to successfully mutate the gene in the tadpole models, discovering the value of tadpoles as ideal models for studying the role of hormones in development because of the timely metamorphosis from tadpole to juvenile frog, and because that transition is completely dependent on hormones.
Mon, 26 Jan 2015 09:59:11 EST
Chemists find a way to unboil egg whites: Ability to quickly restore molecular proteins could slash biotechnology costs
Chemists have figured out how to unboil egg whites -- an innovation that could dramatically reduce costs for cancer treatments, food production and other segments of the $160 billion global biotechnology industry, according to new findings.
Fri, 23 Jan 2015 11:07:15 EST
Unusually elastic protein found by researchers; may have originated in cnidarian elastomer
An unusually elastic protein has been discovered in one of the most ancient groups of animals, the over 600-million-year-old cnidarians. The protein is a part of the "weapons system" that the cnidarians use: a kind of harpoon launched from their body at extremely high speed. The discovery of the hitherto unknown protein in the freshwater polyp Hydra suggests that the molecular mechanism of elasticity could have originated in the cnidarians and evolved to discharge a deadly weapon. Due to the similarity of the protein's amino acid sequence to spidroin of spider silk, the researchers dubbed the elastic protein cnidoin.
Fri, 23 Jan 2015 10:25:39 EST
Telomere extension turns back aging clock in cultured human cells, study finds
A new procedure can quickly and efficiently increase the length of human telomeres, the protective caps on the ends of chromosomes that are linked to aging and disease, according to scientists.
Fri, 23 Jan 2015 08:17:27 EST
Hidden infection shortens life in birds
Mild infections without symptoms of illness can still lead to serious consequences by reducing the lifespan of the infected individuals, research shows. A new study has been carried out on malaria-infected migratory birds. The infection is thought to speed up the aging process by shortening the telomeres (i.e., the chromosomes ends) at a faster rate and thereby accelerating senescence. 
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