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Tag: "stability" at biology news

Growth in the sea comes down to a struggle for iron

...y at sea. Its subsurface pontoon hull give it more stability in choppy seas, a benefit to Wells who normally gets seasick on these voyages. For nine days, she steamed northwest to rendezvous with a research vessel from the University of Tokyo, the Hakuho Maru, carrying a large group of Japanese scientists. Th...

Highly adaptable genome in gut bacterium key to intestinal health

...nditions but also helps maintain the functions and stability of the gut's highly complex microbial society, acc...c environment of the gut and ensure the functional stability of the intestinal bioreactor, the researchers say. In addition, variations in the composition of gut...

How an AIDS-Related Cancer Unleashes Inflammation

...he cell. Activated MK2 does this by prolonging the stability of cytokine messenger RNA ?the genetic blueprint for cytokine proteins. The longer these messenger RNAs remain in the cell, the more cytokine proteins the cell's protein-making machinery is able to synthesize, said Ganem. The activation of MK2 also ...

Key mechanism in genetic inheritance during cell division identified

...gs that reduced microtubule binding. "Because the stability of a microtubule is thought to be largely governed by the lateral interactions between adjacent protofilaments," the authors note, "rings that bind orthogonally to the microtubule axis are not only expected to strengthen interprotofilament interactio...

Cooperation is key—a new way of looking at MicroRNA and how it controls gene expression

...fore they can be translated into proteins, and the stability of these mRNA transcripts is essential for control... mRNA. These binding events may play a role in the stability and degradation of the mRNA. Despite much research over the last few years into exactly how this wor...

Biochemists report discovery of structure of major piece of telomerase; implications for cancer

...e to a 'U' nucleotide has a dramatic effect on the stability of the three-dimensional fold of the RNA, which is...we now understand how they disrupt the folding and stability of the RNA and why they are disease mutations." For telomerase to be active, it needs the telomeras...

NYU, Rockefeller researchers find complexity of regulation by microRNA genes

...ry sites in target messenger RNA to regulate their stability and translation. However, little has been known about the biological function of microRNAs--a process the current study sought to explore. The paper, published in the latest issue of the journal Nature Genetics, found that a microRNA gene regulates,...

The making and breaking of microtubules

...uble-layered, a property that contributes to their stability -- but it also put the brakes on the project for a long time. "The key was to get the tubulin assemblies locked at the correct states suitable for structural analysis, but even more challenging was finding an algorithm to reconstruct the double-laye...

Ships bring alien jellyfish invaders to our shores

...s' ballast water each day. Ships take in water for stability before a voyage and despite preventative measures such as mid-ocean exchange/flushing this 'foreign' water and its contents can find their way into bays and harbours at the destination. The computer model used to track jellyfish movements could answ...

A bug's life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist

... genome stability," says Wernegreen. "This genomic stability may prevent the reacquisition of those lost functions or the evolution of new ones. In addition, rapid protein evolution seems to degrade the genes that remain." In the future, major areas of research will include understanding the forces driving th...

Chernobyl: The true scale of the accident

... and did not permit gathering complete data on the stability of the damaged unit. Also, some structural parts of the shelter have corroded in the past two decades. The main potential hazard posed by the shelter is the possible collapse of its top structures and the release of radioactive dust. Strengthening t...

Seeing the forest and the trees

...her service a healthy forest provides such as soil stability or fruit production that might arise from a single extinction scenario. "In general, we found that when you have more species, things are more predictable," said Bunker, who was lead author on the study. "It's like having a diversified investment po...

Oysters: The natural way to protect our shores

...g-term growth, and contribute to overall ecosystem stability and quality. Oyster larvae move in groups and water-borne chemicals stimulate the oysters' settlement; reefs are therefore able to maintain themselves as new recruits settle and grow. "Sustainability is an important component to note as maintenance...

Researchers show key protein necessary for normal development of red blood cells

...n of embryonic globin genes and the maturation and stability of embryonic red blood cells in a mouse model. Res...obin gene, and is essential for the maturation and stability of adult red blood cells. Researchers believe that the roles of EKLF and KLF2 may partially overlap ...

Researchers map of genetic variations implicated in disease

...region, called DR-DQ, where we find this island of stability is one of the most variable in our genome, yet in some people it has been 'fixed'. We suggest that ancestral DR-DQ blocks have been shuffled into different MHC backgrounds and subsequently expanded in frequency across European populations. "These '...

Scientists discover interplay between genes and viruses in tiny ocean plankton

...tic diversity is at the heart of the extraordinary stability of Prochlorococcus in the oceans, which maintain steady population sizes over vast regions of the sea," she said. ...

MIT: Oceans are a major gene swap-meet for plankton

...tic diversity is at the heart of the extraordinary stability of Prochlorococcus in the oceans, which maintains steady population sizes over vast regions" of the sea. The collective Prochlorococcus community merely adjusts internally, with different groups (genome types) waxing and waning in relative abundance...

UW-Madison engineers squeeze secrets from proteins

...What we demonstrate for the first time is that the stability of proteins under severe confinement, which is rea... the entropy and determine how much of a protein's stability change upon confinement to attribute to energy and how much to entropy. "This is the important part ...

Penguins waddle but they don't fall down, UH researchers say

...s. They may have an elegant movement strategy for stability that we're unaware of." Kurz hopes that learning...ment of more mobile robots. His study on walking stability features dozens of King penguins from Moody Gardens in Galveston. Though these endearing animals ma...

'Genetic network' guards against lethal DNA damage

...tic network that is necessary for ensuring genomic stability in yeast. This study also identified previously un...the network of biochemical reactions governing DNA stability is accomplished, Boeke noted. Based on the data from this study, the investigators were able to sep...

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