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Genetics News
Fri, 24 Mar 2017 10:49:48 EDT
Amazingly fast, cheap genome sequencing: Zika virus mosquito genome assembled from scratch
A team of scientists has developed a new way to sequence genomes, which can assemble the genome of an organism, entirely from scratch, dramatically cheaper and faster.
Fri, 24 Mar 2017 10:48:45 EDT
Evolutionary advantage of the common periwinkle
A special kind of small sulfur-rich proteins, the metallothioneins, have an extraordinarily large capability for binding heavy metals. An international team of scientists has now discovered that the marine common periwinkle, which is widely considered a delicacy, contains the largest version of the protein found yet, with one additional cadmium-binding domain and a one-third higher detoxification capacity. This feature may help the snail survive in heavy-metal-polluted environments.
Thu, 23 Mar 2017 14:13:35 EDT
Membrane lipids hop in and out of rafts in the blink of an eye
New fluorescent lipids demonstrate how specialized regions in the cell membrane function, explain researchers in a new report.
Thu, 23 Mar 2017 14:13:26 EDT
Designer proteins fold DNA: Biophysicists construct complex hybrid structures using DNA and proteins
Scientists have developed a new method that can be used to construct custom hybrid structures using DNA and proteins. The method opens new opportunities for fundamental research in cell biology and for applications in biotechnology and medicine.
Thu, 23 Mar 2017 13:25:32 EDT
Scientists reveal hidden structures in bacterial DNA
Researchers have described the 3D structure of the genome in the extremely small bacteria Mycoplasma pneumoniae. They discovered previously unknown arrangements of DNA within this tiny bacteria, which are also found in larger cells. Their findings suggest that this type of organization is a universal feature of living cells.
Wed, 22 Mar 2017 15:32:47 EDT
Research questions effectiveness of translocation conservation method
A DNA study of endangered greater prairie chickens in Illinois indicates that supplementing the dwindling population with birds from out of state did not improve genetic diversity.
Wed, 22 Mar 2017 15:27:53 EDT
Heart tissue grown on spinach leaves
Researchers face a fundamental challenge as they seek to scale up human tissue regeneration from small lab samples to full-size tissues and organs: how to establish a vascular system that delivers blood deep into the developing tissue. Researchers have now successfully turned to plants, culturing beating human heart cells on spinach leaves that were stripped of plant cells.
Wed, 22 Mar 2017 10:37:21 EDT
After the epigenome: The epitranscriptome
A new article explains that RNA also has its own spelling and grammar, just like DNA. These 'epigenetics of RNA' are called epitranscriptome.
Wed, 22 Mar 2017 10:08:01 EDT
New cell membrane fusion model challenges dogma
Membrane fusion lies at the heart of many cell functions—from the secretion of antibodies to the release of neurotransmitters. For more than two decades, one view of the process by which membrane fusion occurs has been accepted as dogma; now recent studies indicate that fusion is more complex. These discoveries are being regarded by at least one leading cell biologist as “textbook changing” and could alter how we develop drugs that affect membrane fusion activities.
Tue, 21 Mar 2017 14:53:22 EDT
Asthma: Researchers discover how exposure to microbes protects against asthma
The incidence of asthma is increasing steadily. One of the reasons given for this rise is the excessive level of hygiene in our environment. Studies have indeed shown that exposure to a so-called "non-hygienic" environment, rich in microbes, plays a protective role against the development of allergies, including asthma. New research shows that exposure to bacterial DNA drastically amplifies a population of pulmonary macrophages and makes them strongly immunosuppressive, which prevents and treats asthma in mice. This discovery offers promising prospects for the development of a cell therapy based on the administration of these regulatory macrophages to asthmatic patients.
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