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Tag: "sequence" at biology news

Researchers publish first marsupial genome sequence

... that most innovations leading to the human genome sequence lie not in protein-coding genes, but in areas that.... The effort to generate the high-quality genome sequence of the gray short-tailed, South American opossum, Monodelphis domestica, began in 2003 and cost appr...

DOE JGI sets 'gold standard' for metagenomic data analysis

...agenomic data to enable accurate classification of sequence fragments into their corresponding species populat... all mixed up, and moreover, you don't have enough sequence from each to capture an accurate picture of the entire community, so you only get a glimpse of the i...

Effect on breast tumors of DNA alternations in 3 genes described

...own that mutation in genes -- alterations in their sequence -- is one of the characteristics of tumors responsible for some of their disease properties," said Menghua Tao, Ph.D., research assistant professor of social and preventive medicine in the UB School of Public Health and Health Professions and first a...

Iowa State scientists demonstrate first use of nanotechnology to enter plant cells

...is technology, we may be able to control the whole sequence in the future." And once you get inside the plant cell wall, it opens up "whole new possibilities," Wang said. "We really don’t know what’s going on inside the cell. We’re on the outside looking in. This gets us inside where we can study the b...

Genome of yellow fever/dengue fever mosquito sequenced

...th the completion of the first draft of the genome sequence of Aedes aegypti mosquito by scientists led by Vis...nhance existing strategies. The Ae. aegypti genome sequence is expected to stimulate efforts to elucidate interactions at the molecular level between mosquitoes...

Danish researches solve virus puzzle

...e 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 protein needed by the virus, with possible serious...

Discovery of 'master switch' for the communication process between chloroplast and nuclei of plants

...ussevitzky said. "ABI4 binds to a newly identified sequence motif, and by doing so prevents light-induced regulatory factors from activating gene expression. It has a role in so many signaling processes in the plant, it might actually be the ‘master switch?that researchers have been looking for." The discov...

Super-fermenting fungus genome sequenced

...rocess. “The information embedded in the genome sequence of Pichia has helped us identify several gene targets to improve xylose metabolism,?said Pichia paper lead author Thomas W. Jeffries of the Forest Products Laboratory in Madison, Wisconsin. “We are now engineering these genes to increase ethanol pro...

Stanford-led study closes in on genes that may predispose some people to severe depression

...one or more genes in which there are specific DNA sequence variations that affect one's risk of depression, then we would be able to understand what type of gene is it, what it does in the brain and by what mechanism it could make one more or less predisposed to depression." Knowing more about which g...

Beyond the DNA: Chemical signatures reveal genetic switches in the genome

...d online today in Nature Genetics. While the DNA sequence can identify genes (the 'what') within the genome,...sting methods to predict enhancers rely on the DNA sequence alone, but these are inadequate because we have an incomplete understanding of the sequence features...

Mine runoff continues to provide clues to microbial diversification

...dding, Calif., combines recently developed ways to sequence microbial genes with methods to identify the range of proteins from specific microbial members. Researchers from Oak Ridge National Laboratory and UC Berkeley discovered that Leptosprillium group II bacteria in these streams are exchanging large b...

Researchers identify gene involved in dog size

...0 dogs from 143 breeds to pinpoint a specific gene sequence variant, or haplotype, associated with small size ...search Network. The availability of the dog genome sequence allows researchers to better compare the human and dog genomes and narrow their search for genetic c...

Horse genome assembled

The first draft of the horse genome sequence has been deposited in public databases and is free...roject announced today. The $15 million effort to sequence the approximately 2.7 billion DNA base pairs in the genome of the horse (Equus caballus) was funded ...

Prehistoric origins of stomach ulcers uncovered

...nover Medical School. The researchers compared DNA sequence patterns of humans and the Helicobacter pylori bacteria now known to cause most stomach ulcers. They found that the genetic differences between human populations that arose as they dispersed from Eastern Africa over thousands of years are mirrored in...

Loss of a universal tRNA feature reported

.... tRNAs are the molecules responsible for decoding sequence information specified by messenger RNA molecules, information which is ultimately encoded by the DNA template. tRNAHis is the specific tRNA that assists in incorporating the amino acid histidine into new proteins. Histidine residues make essential ...

McBride shows DNA detective work with paper-eating bacteria that 'glide'

...ding bacteria. He is now collaborating with DOE to sequence the entire genome of F. johnsoniae, which will allow a full comparison of the genes of the two microorganisms. ...

Researchers find gene mutation that causes infertility in male mice

...e been occasional reports that in some patients, a sequence change in this or other meiosis genes might cause ...ll be critical in distinguishing between those DNA sequence changes that are benign in humans versus those that disrupt sperm or egg production. The researchers...

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

...terpret the amino acid sequences. Normally, when a sequence comes out of a mass spectrometer, it is compared to a database of existing amino acid sequences. Collagen is a highly conserved protein, so it was highly likely that some of the dinosaur peptide sequences would match those of an existing species. Of ...

Analysis of rhesus monkey genome uncovers genetic differences with humans, chimps

...consortium of researchers has published the genome sequence of the rhesus macaque monkey and aligned it with t...s. Four companion papers that relied on the rhesus sequence also appear in the same issue. The rhesus genome is the second non-human primate, after the ...

Genetic pathways to curable and incurable forms of pancreatic cancer identified

...ancer, researchers have discovered that a specific sequence of otherwise common genetic mutations is responsib...ssue of the journal Cancer Cell that explains this sequence and details why the cells behave differently. "Although at their end stage the two different rou...

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