Navigation Links

Tag: "copying" at biology news

An 'elegant' idea proves its worth 25 years later

The simple notion of copying the body’s own natural "waste disposal" chemistry to mop up potentially toxic nitrogen has saved an estimated 80 percent of patients with urea cycle disorders --- most of them children – according to a report in this week’s New England Journal of Med...

Revealing the machinery underlying the 'plastic' juvenile brain

...on of other genes. Transcription is the process of copying DNA genes into RNA, which acts as a blueprint for making proteins. As a test to determine whether such histone modification functionally affected plasticity, the researchers administered a drug to adult mice that would increase chemical modificati...

New technologies coming too fast for Indian farmers

...ssarily a bad thing; but in this case, everyone is copying everyone else, which results in fads, not testing." Stone argues that the previously undocumented pattern of fads, in which each village moves from seed to seed, reflects a breakdown in "environmental learning," leaving farmers to rely on "social lea...

Protein averts cell suicide but might contribute to cancer

...in, an enzyme called Dpo4, often makes errors when copying the genomic DNA sequence that later might cause the cell to become cancerous. The findings by researchers with Ohio State University 's Comprehensive Cancer Center are described in two back-to-back papers in The Journal of Biological Chemistry. ...

Gladstone investigators identify a new protective action for the powerful anti-HIV factor, APOBEC3G

...al sites with potentially damaging effect involves copying DNA into RNA and then back into DNA again. The A3G...plasm away from the nuclear machinery required for copying the RNA back into DNA and inserting the retro-element at a new chromosomal site. Understanding A3...

Novel experiment documents evolution of genome in near-real time

...bly as the result of naturally occurring errors in copying DNA into daughter cells during cell division. The precise changes in the sequence of DNA subunits were determined with comparative genomic sequencing technology from NimbleGen Systems, and further analyzed with technology from Sequenom Inc., a San Di...

Nobel Laureate finds 'elegant' explanation for DNA transcribing enzyme's high fidelity

...nscription, in which enzymes give “voice?to DNA by copying it into the RNA molecules that serve as templates for protein in organisms from yeast to humans. Now, Kornberg and his colleagues report in the December 1, 2006 issue of the journal Cell, published by Cell Press, new structures that reveal another cr...

Regulating the nuclear architecture of the cell

...ent locations in the genome, either directly or by copying themselves, inserting themselves in new sequences ...ons. "Short repetitive pieces of DNA that keep copying themselves could conceivably expand and take over the whole genome," says Karpen, "so some balance m...

Silver bullet: UGA researchers use laser, nanotechnology to rapidly detect viruses

... reaction (PCR), which detects the virus itself by copying it many times. The test can take anywhere from several days to two weeks. Tripp said the latter is clearly too long, especially in light of emerging threats such as H5N1 avian influenza. "For some respiratory viruses, you've either cleared the inf...

Two central mysteries in genome inheritance solved at UCSD

...r of identical sister chromatids, generated by the copying of the parental DNA strand. These pairs are held together during the early stages of cell division. Once all chromosomes properly connect to the spindle, the pairs are separated and sisters are pulled towards opposite ends of the spindle. "If bot...

Newly discovered behavior in cancer cells signals dangerous metastasis

...lternative splicing," a key element of the genetic copying program inside cells. Alternative splicing determines how the DNA is chopped into pieces and then reassembled. The order in which DNA is reassembled determines which proteins the gene produces. In cancer cells, the splicing machinery goes awry -- as...

Mobile DNA part of evolution's toolbox

The repeated copying of a small segment of DNA in the genome of a primeval fish may have been crucial to the transition of ancient animals from sea to land, or to later key evolutionary changes in land vertebrates. The discovery is "tantalizing evidence" that copied DNA ...

Weizmann Institute scientists discover a molecular security mechanism for keeping mutations in check

...c journal Molecular Cell. The instruments of DNA copying (which takes place prior to cell division) are mem...molecule, reading each bit of genetic material and copying as it goes along, to create new DNA that will be passed on to the daughter cell at cell division. Th...

Science captures the essence of fruit

...hile manufacturers have largely been successful in copying natural tastes and scents, they generally do so either through a chemical synthesis process or extraction from harvested raw ingredients. "Neither approach is ideal. Chemical synthesis requires heat and pressure, so is reliant on increasingly expen...

'Pinball protons' created by ultraviolet rays and other causes can lead to DNA damage

... in the DNA. These lesions, when replicated in the copying mechanisms of DNA, can lead to serious disorders such as cancer. The research, just published in the Proceedings of the National Academy of Sciences (PNAS), was led by doctoral student Maria Lind and Henry F. Schaefer III, Graham-Perdue Professor of...

When it comes to gene transcription, random pauses aren’t quite so random, study finds

...ds a new complementary strand of RNA by chemically copying ("transcribing") the gene one base at a time. RNAP will continue moving along the DNA strand until the entire gene sequence is transcribed onto the encoded RNA, which then serves as a template for building the actual protein. Nanotechnology To o...

A protein complex that untangles DNA

...angles, which are a natural consequence of the DNA copying process, are left unresolved the chromosomes cannot be separated and sent to the two nascent daughter cells. Like in the repair process, the Smc5/6 complex appears to resolve these intertwines by direct interaction with the DNA molecules, but this pr...

Pigeons provide clue to solving common problem in heart patients

...e. The process begins with "transcription," or the copying of a gene's DNA sequence. It is not known which genes might control the pigeons' heart vessel tissue-building process, so Wagner's group focused on "transcription factors," which regulate whether a gene is expressed and at what rate. The group's ai...

ANU scientists crack DNA replication mystery

...e tried in vain to understand the last step in the copying of DNA in cells that are about to divide. The research findings were published in the prestigious international journal Cell this morning. In all cells, DNA is copied by a large molecular machine called the replisome. The replisome does two things...

Study finds 60 new genes controlled by DNA snippet

...r mutations, are inserted into the code during the copying process. Some mutations bring survival advantages and others cause disease. Most known genetic diseases identified to date result from a mutation within a gene that directs protein construction, but that may soon change. "We believe more and more ...

1 2

Other Tags
(Date:7/27/2014)... strike that wiped them out if it had taken ... , A fresh study using up-to-date fossil records and ... new narrative of the prehistoric creatures, demise, some 66 ... few million years before a 10km-wide asteroid struck what ... included extensive volcanic activity, changing sea levels and varying ...
(Date:7/27/2014)... have discovered a new species of mayfly in the southern ... India. In fact, this is the first time that any ... collected in peninsular India. , The new species, called ... Soldan for his substantial contribution to the understanding of the ... of a study that describes the new mayfly in the ...
(Date:7/27/2014)... have shown the potential for global climate change to ... most part, ignored the interactions between increasing temperature and ... to damage crops. , A new study involving researchers ... significant, suggesting that policymakers need to take both warming ... , The study looked in detail at global production ...
Breaking Biology News(10 mins):Dinosaurs fell victim to perfect storm of events, study shows 2Study: Climate change and air pollution will combine to curb food supplies 2Study: Climate change and air pollution will combine to curb food supplies 3
(Date:7/28/2014)... Parker Waichman LLP, a personal injury law firm ... heroes of 9/11 are never forgotten, comments that the September ... According to a VCF message dated July 3, ... or before October 12, 2012 must file a Registration Form ... who were allegedly injured by the toxic dust cloud that ...
(Date:7/28/2014)... 28, 2014 The Brooke Jackman ... donated more than 200,000 books to children and families ... launch of Brooke’s Cooks, a new initiative designed to ... living among at-risk children and their families in the ... series of nutrition information workshops, cooking demonstrations and readings. ...
(Date:7/28/2014)... 28, 2014 Bariatric Eating, a leading ... that it will be introducing three additional flavors to ... summer. The additional flavors include: , Inspire Summer Melon ... , Inspire Pomegranate Razz Berry -­ Pomegranate, razz and ... vanilla cone , Bariatric Eating's Inspire protein powders ...
(Date:7/28/2014)... Stimulating one of two dopamine-producing regions in the brain ... either isoflurane or propofol. In the August issue ... (MGH) report that rats anesthetized with continuous doses of ... stand up in response to electrical stimulation delivered to ... other major dopamine-releasing area, the substantia nigra, did not ...
(Date:7/28/2014)... York, New York (PRWEB) July 28, 2014 ... the long-acting birth control device caused some users to ... proper position in the uterus continue to mount in ... a new case list issued last month in New ... are pending in a multicounty litigation underway in Bergen ...
Breaking Medicine News(10 mins):Health News:October 12, 2014 Deadline Approaching for 9/11 First Responders Suffering from Certain Cancers to Submit Their Registration to the VCF, Parker Waichman LLP Comments 2Health News:October 12, 2014 Deadline Approaching for 9/11 First Responders Suffering from Certain Cancers to Submit Their Registration to the VCF, Parker Waichman LLP Comments 3Health News:Brooke Jackman Foundation Launches Brooke's Cooks, New Initiative to Promote Healthy Living Among At-Risk Youth and Their Families 2Health News:Brooke Jackman Foundation Launches Brooke's Cooks, New Initiative to Promote Healthy Living Among At-Risk Youth and Their Families 3Health News:Brooke Jackman Foundation Launches Brooke's Cooks, New Initiative to Promote Healthy Living Among At-Risk Youth and Their Families 4Health News:Bariatric Eating Announces Three New Protein Shake Flavors 2Health News:Stimulation of brain region restores consciousness to animals under general anesthesia 2Health News:Mirena IUD Lawsuit Filings Exceed 920 in New Jersey Litigation, Bernstein Liebhard LLP Reports 2Health News:Mirena IUD Lawsuit Filings Exceed 920 in New Jersey Litigation, Bernstein Liebhard LLP Reports 3Health News:Mirena IUD Lawsuit Filings Exceed 920 in New Jersey Litigation, Bernstein Liebhard LLP Reports 4
Other Contents