organisms 2 9

Tag: "organisms" at biology news

Researchers quantify more noise in gene expression

...ely observed in the genetically identical cells of organisms ranging in complexity from bacteria to mammals. "Watchmakers can neither make individual watches with intrinsically perfect accuracy, nor perfectly synchronize any two watches to eliminate extrinsic variations," said Hasty. "And intrinsic and extrins...

Novel protein complex enables survival in hostile environment

... unique way," said Mukhopadhyay, whose lab studies organisms that produce methane, in particular M. jannaschii....ights into the evolution of the methanogens. These organisms have often been thought to be very limited in their metabolic capabilities. The current study goes a...

Evolutionary conservation of a mechanism of longevity from worms to mammals

...dvantage. Though the aging process of different organisms will most likely differ due to different physiologies and environments, Dr. Hekimi summarizes the relevance of their findings by concluding that "�the longevity-promoting effect of reducing clk-1/mclk1 activity that was initially observed in C. elega...

Novel enzyme offers new look at gene regulation

...ches predict more than 100 total proteins found in organisms as diverse as bacteria and man contain the JmjC do...C domain-containing proteins that exist in diverse organisms ranging from yeast to human, our discovery will keep many people in the field busy for the years to ...

Changes to embryos can elicit change in adult fish

...mportant functional differences operating in adult organisms are elicited by changes in early development. Our next goal is to understand the genetic bases underlying the differences between the simple biomechanical system of the lower jaw and complex systems of the anterior jaw in these fish." ...

ORNL leading effort to help harness power of Shewanella

... complete understanding of the response systems in organisms such as Shewanella and how they respond to changes in their environment. This can be achieved through a combination of many different methods, including sampling of strains present at DOE waste sites, characterization of in situ and mutant physiologi...

Lateral thinking produces first map of gene transmission

...fer ?a process where genes are transferred between organisms that aren't directly related. The map has traced...Their results clearly show genetic modification of organisms by lateral transfer is a widespread natural phenomenon, and it can occur even between distantly rela...

The bioweapon is in the post

...wide net", comparing orders against sequences from organisms identified by the US government as "select agents" that raise bioterror concerns. But not all of these sequences are dangerous, and some customers may have the clearance to work with those that are. So even legitimate orders may be flagged up as susp...

How E. coli bacterium generates simplicity from complexity

...elf regardless of what it has to live on." Higher organisms have larger genomes and much more complexity, but Palsson noted that several theoretical studies predict that even eukaryotic cells will exhibit a relatively small number of functional states. "When we uncover the regulatory networks in eukaryotes, i...

Bacteria that cause tooth decay able to survive without important biochemical pathway

... things that are more fundamental about how living organisms insert proteins and how membrane function is determined by proteins. "We now know that things are not always as straightforward as they seem," she said. ...

Sleeping sickness parasite shows how cells divide their insides

...ng it ideal for studying processes of more complex organisms that have many copies in each cell. When thinkin...t protein tags. How this process relates to higher organisms is the focus of present research. ...

Nano springs eternal; Protozoan 'engine' posts nano records

...ily members are found in filamentous structures in organisms other than Vorticella, ranging from green algae to humans." In sorting out centrin's role in the Vorticella spring, France and colleagues found that an antibody to Vorticella centrin abolished contractility. Along with other evidence, this interfe...

Are U.S. Flu Death Figures More PR Than Science?

...ily members are found in filamentous structures in organisms other than Vorticella, ranging from green algae to humans." In sorting out centrin's role in the Vorticella spring, France and colleagues found that an antibody to Vorticella centrin abolished contractility. Along with other evidence, this interfe...

Similar Stem Cells In Insect And Human Gut

...ily members are found in filamentous structures in organisms other than Vorticella, ranging from green algae to humans." In sorting out centrin's role in the Vorticella spring, France and colleagues found that an antibody to Vorticella centrin abolished contractility. Along with other evidence, this interfe...

Researchers develop new method to help find deadly malaria parasite's Achilles heel

... reported earlier in four other well studied model organisms -- yeast, a nematode worm, the fruit fly, and a ba... differs significantly from those of several model organisms is an intriguing result that could lead to the identification of novel drug targets for fighting mal...

Understanding the oceans microbes is key to the Earth's future

...many steps of the biogeochemical cycles that other organisms are unable to complete. The smooth functioning of these cycles is necessary for life to continue on earth." Early marine microorganisms also helped create the conditions under which subsequent life developed. More than two billion years ago, the ...

Setting the standard for computer models of life

...entire biological systems - be they cells, organs, organisms or ecological niches - work. As well as contributing to the understanding of biology, this approach has numerous applications: for example, diseases can be simulated, and treatment regimens optimised. "The computational systems biology community has...

Poison + water = hydrogen. New microbial genome shows how

...se carbon monoxide in a different way. Most other organisms that live on carbon monoxide have only one form of this machine. In other words, while other organisms may have the equivalent of a modest mixing bowl to process their supper of carbon monoxide, this spe...

Yale scientists decipher 'wiring pattern' of cell signaling networks

...ignaling network that controls how cells of higher organisms operate, according to a report this week in the jo...l years, a large volume of information on genes in organisms as diverse as man, mouse, baker's yeast and viruses has been generated. While genomic DNA is the blu...

Antibacterial coatings cut infection rates

...ere found to prevent the colonisation of microbial organisms such as bacteria and fungi on their surfaces, helping to keep the algae clean. Researchers at the University of New South Wales developed synthetic analogues of the natural compounds and discovered that these chemicals also keep synthetic surfaces cl...

1 2 3 4 5 6 7 8 9 10