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Tag: "letters" at biology news

Research team identifies new Alzheimer's gene

...ologies permit us to survey a sufficient number of letters throughout the human genome to provide a clearer picture of how life works and ultimately allow better clinical management of patients,” said Dr. Dietrich Stephan, Director of TGen’s Neurogenomics Division and the paper’s senior author, “These new, r...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...nfection. Anthrax killed five people in 2001 when letters containing the bacteria's spores were sent through the mail. The UF findings, published last week in the EMBO Journal, may lead to quicker diagnoses for anthrax victims. The disease causes flu-like symptoms that can take weeks to develop, accordin...

Danish researches solve virus puzzle

...e ribosome sometimes slips backwards and, like the letters making up a word, it now reads a new RNA sequence and hence uses another recipe to construct the protein. The researchers have found that the stronger the pseudoknot the more often this backwards slipping happens. The different protein formed is the ...

Individuals and populations differ in gene activity levels, not just genes

...years about genetic variation, in which individual letters in the genetic code change between individuals and between different populations. However, this study is one of the first to look at the variation in gene activity between individuals and populations. The researchers found many differences in gen...

Action video games sharpen vision 20 percent

...d by about 20 percent in their ability to identify letters presented in clutter—a visual acuity test similar to ones used in regular ophthalmology clinics. In essence, playing video game improves your bottom line on a standard eye chart. "Action video game play changes the way our brains process visual ...

Sequencing of the oyster mushroom genome

...nvolves, Pisabarro gives us an example: 70 million letters would be equivalent to a volume of more than 11,50...ey would run for a distance of 3.5 kilometres; the letters thereof, written and placed one after the other, would run to 141 km. The genome of the mushroom has...

Nanoparticle assembly enters the fast lane

...pair up components called bases, known by the code letters A, T, G and C. "In biology, DNA is mainly an informational material, while in nanoscience, DNA is an excellent structural material due to its natural ability to self-assemble according to well-specified programmable rules," said Oleg Gang, the Br...

New dyslexia theory blames 'noise'

...le to form solid mental categories for identifying letters and word sounds. Such children may benefit fro...l think that to have dyslexia means to mix up your letters (one of many possible symptoms having to do with word recognition, directional ability and decoding ...

Molecular mechanism provides intra-cellular traffic signal

...he coordination. Molecular switches that go by the letters Ypt allow membrane-enclosed vesicles to pass in and out of cellular compartments. Activator proteins flip the switches on. One activator protein, called TRAPP, coordinates two Ypt switches for quick entrance and subsequent exit from a central cellula...

New book uses ABCs to teach children microbiology

...tos he has collected of microorganisms shaped like letters of the alphabet to illustrate the significant role microbes play in our daily lives. This intriguing book contains a glossary of important terms, as well as endpapers illustrating the relative size of organisms from viruses to whales. Age-approp...

Master planners in brain may coordinate other areas' roles in cognitive tasks

...ith the word "dog" or determining the color of the letters in the word "dog." Much of the human brain's power derives from what Petersen calls "flexible configuration of processing systems," or the ability to take one stimulus and process it in different ways to produce different feedback. Different parts ...

Researchers appeal for new regulations to save coral reefs from live fish trade

...ef fish trade, a growing threat to coral reefs, in letters to the international journal Science. Twenty of ...hreat of collapse. The scientists argue in their letters that multilevel action, from local to international, is needed to establish institutions that are ab...

CHAVI announces international search for genes affecting HIV response

...for minor changes in the sequence of 3 billion DNA letters that make up the human genome. The changes, called single nucleotide polymorphisms (SNPs), are like single-letter variations in the spellings of a word. The SNPs cluster in local neighborhoods, known as haplotypes, within the genome. Most of these va...

DOE JGI finishes 100th microbial genome

...world. DOE JGI averages over 3.1 billion bases or letters of sequence generated per month, or roughly the equivalent of a human genome once over. As microbes range in size from typically five to tens of millions of bases, several microbes could be sequenced in one day. However, the sequencing process, in ...

In a technical tour de force, Salk scientists take a global view of the epigenome

...s in gene function that occur without changing the letters of the DNA alphabet - show that how a cell "reads" those letters is critical. Methylation is chemical modification of one letter C (cytosine) of the four letters ...

Outsmarting the smartie bug

...e all 90 forms of the capsule (more than 1,800,000 letters of genetic code), determined their function and studied their evolution. The work gives the most complete understanding of capsule production in any bacterial species. The new vaccine will protect children from many of the most common serotypes but ...

Two NIH initiatives launch intensive efforts to find roots of common diseases

...ur in the order of the 3 billion DNA base pairs or letters that make up a person's genome. SNPs are like sing...from parent to child through the three billion DNA letters that make up the human genome," said Francis S. Collins, M.D., Ph.D., Director of the National Human...

Multi-million pound UK Biobank underway

...the area have already been notified, and the first letters to potential participants have been sent out. These were accompanied by a detailed information booklet. Further information is available on request (and via a web site www.ukbiobank.ac.uk), with a freephone number that volunteers and GPs can ring to ...

Scientists reveal how deadly toxin hijacks cells

...tridium botulinum. Of the seven-identified by the letters A through G--botox A lasts a particularly long time in neurons. While that feature makes it especially useful in the clinic, it also means that botox A may pose a particularly dangerous threat as a biological weapon. The toxin enters neurons by bin...

New male contraceptive clears hurdle

...sted in contraception are just that: myths. "I get letters from men all over the world who beg to come to India and participate in this study at their own expense." ...

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