Tag: "sequence" at biology news

Houston minority graduation rises in sciences, engineering as result of UH-led alliance

...grams." A national program, LSAMP is one of a sequence of four NSF programs that seek to build productive capacity and output within institutions with significant enrollments of minority populations underrepresented within STEM professions. The program requires awardees to establish meaningful partnersh...

Landmark gene agreement announced by Samoan government and UC Berkeley for anti-AIDS drug Prostratin

...'s assertion of national sovereignty over the gene sequence of Prostratin, a drug extracted from the bark of the mamala tree (Homalanthus nutans). The drug currently is being studied by scientists around the world because of its potential to force the AIDS virus out of hibernation in the body's immune cells a...

Landmark agreement between Samoa and UC Berkeley could help search for AIDS cure

...'s assertion of national sovereignty over the gene sequence of Prostratin, a drug extracted from the bark of the mamala tree (Homalanthus nutans). The drug currently is being studied by scientists around the world because of its potential to force the AIDS virus out of hibernation in the body's immune cells a...

Cigarette smoke causes breaks in DNA and defects to a cell's chromosomes, Pitt study finds

...le most research has focused on the changes in DNA sequence caused by cigarette smoke, little attention has been given to how smoke affects genomic stability of cells. In laboratory studies using human fibroblasts, common cells found in connective tissue, William S. Saunders, Ph.D., and colleagues discovered ...

DNA lends scientists a hand, revealing new chemical reactions

...et undiscovered chemical reactions. DNA's inherent sequence selectivity - binding only to other strands with a complementary sequence - means that DNA-templated synthesis can be used to evaluate hundreds of potential chemical reaction...

Pack-MULEs are toting a new look at plant evolution

... little-considered group of elements in the genome sequence to potentially major players in the process of evo... a personal link to her area of study the genomic sequence of rice. Rice isn't just a plant with a sequenced genome that's comparatively manageable. Rice also ...

New molecular link key to cellular proteins involved in cancer progression, other diseases

... transcriptional control that does not involve DNA sequence and that can be inherited from one generation of cells to another. Along with ubiquitination, epigenetic modifications also include histone methylation, acetylation and DNA methylation. "The PcG silencing system is one of the best-studied model of ep...

A test case for DNA barcodes to identify species

... from every other species, and that comparisons of sequence variations in that gene can also reveal evolutionary relationships among species. Hebert and colleagues tested the effectiveness of their genetic barcode in an extensive study of North American birds by comparing the 'species' identified from the bar...

DNA barcode finds four new bird species

...esult is an important step toward proving that the sequence of a short stretch of DNA -- a so-called DNA barco... the PLoS Biology paper, proposed that a short DNA sequence from a gene found in all animals can be used to identify species because in each species the sequenc...

New sequence involved in DNA replication timing may aid in cancer detection

Bethesda, MD - Scientists have discovered a DNA sequence that is involved in controlling the timing of DNA ...e-firing origins contains repeats of a 10-basepair sequence that is rich in the nucleic acid component, guanine. Yompakdee and Huberman named these repeats "Lat...

Poplar DNA code cracked -- a step in combating global warming?

...nefit of humankind and the environment. The genome sequence can contribute to strategies for improving trees more rapidly or for modifying them genetically. Today, trees are the earth's lungs - and, for example, they can be modified so that they work more effectively in trapping CO2, the primary greenhouse g...

A novel, safer strategy for regulating gene expression

...s. The technique involves inserting a special DNA sequence into a patient's own genes, or into a gene introduced by gene therapy. This sequence encodes a ribozyme, a sequence of RNA that has the unique ability to spontaneously cut itself in hal...

The book opens on the first tree genome

...tre in Sweden, has released the first complete DNA sequence of a tree, Populus trichocarpa, the Black Cottonwo...elping to lead this international collaboration to sequence the first tree genome, DOE once again is pioneering discovery-class science that promises to yield i...

NSF awards 22 new projects for plant genome research

...ty will participate in an international project to sequence the gene-rich portions of the 12 chromosomes of tomato by developing the detailed map of the tomato genome. The map that will result from this work will pave the way for development of improved varieties of tomato, and will also help scientists unde...

Environmental decontamination, greenhouse gases, and the genome of a methane-loving bacterium

... with the publication of the first complete genome sequence of a methanotroph, such efforts will be all the ea..., and molecular biology report the complete genome sequence of Methylococcus capsulatus and shed light on the metabolism and biology of this ubiquitous microbe....

Scientists explore genome of methane-breathing microbe

Rockville, MD The first complete genome sequence of a methane-breathing bacterium has revealed a su...viously thought to be beyond its reach. The genome sequence of Methylococcus capsulatus a species typical of methane-breathing bacteria commonly found in soil...

Resveratrol synthase uncovered: Cyclization specificity of type III polyketide synthases

...nd chalcone synthase (CHS) share 75%90% amino acid sequence identity and generate the same tetraketide, but STS enzymes cyclize this tetraketide via an intramolecular C2 to C7 aldol condensation to make stilbene, whereas the CHS cyclize via C2 to C6 condensation reaction to make chalcone. A group of researche...

Researchers develop fast track way to discover how cells are regulated

...ities, where in the genome a particular regulatory sequence might be found. With co-authors Wanyuan Ao, Ph.D.; Jeb Gaudet, Ph.D.; James Kent, Ph.D.; and Srikanth Mattumu, Mango searched C. elegans's genome to find certain "punctuation marks" in the code that might be regulatory sequences responsible for the g...

Human chromosome 5 final sequence analysis released to public

...osome polished off, with 12 more to go. As the new sequence reveals, this chromosome is a genetic behemoth con...he Stanford Human Genome Center (SHGC). The final sequence analysis will be published in the Sept. 16 issue of Nature. "This extremely accurate sequence will...

European common frog found to use novel mating strategy

...ed the AmphiaWeb project, based at UC Berkeley, to sequence four genes from each of the 524 known species of salamanders and the 168 known species of their close relative, the caecilian. The goal is to fully understand the evolutionary tree of amphibians, all the way down to its roots. Vieites' colleagues in ...

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