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Tag: "tackled" at biology news

Advances in the characterisation of the oyster mushroom genes

...rised the genes involved. But nobody, to date, has tackled the degradation of cellulose from a molecular perspective. Cellulose is the most abundant biological polymer on the planet. It is made up of units of D-glucose united by means of glycosidic links that form long polymer chains. The breaking down by l...

Low level of extinction during ice age linked to adaptability

...que or nearly as far north as Buenos Aires. Powell tackled the question of why extinction rates were so low during that great ice age by closely examining geographic patterns of evolution and extinction in brachiopods, simple shelled sea creatures that were abundant and well-fossilized during the Paleozoic. ...

New tumor-suppressor gene discovered

...the development of the fly's eye. Lai's team also tackled the tough challenge of discovering how the mats gene is able to suppress the growth of tumors. "We did not find many clues when we compared the sequence of the mats gene with the sequence of other genes in the public databases," Lai says. "But we did...

Shutting down the HIV assembly line

...used on particle assembly at that point, none have tackled how the Gag protein gets there in the first place. The current work fills this gap. Spearman and colleagues used the HIV-1 Gag protein as bait to "fish" for Gag binding partners. They identified several known and novel interacting proteins and selec...

The making and breaking of microtubules

...ms convert," says Nogales. Nogales and Wang first tackled the depolymerization process, watching what happen... in less than three months." Next the researchers tackled the polymerization process, watching what happens when GTP is bound to tubulin molecules. If GDP som...

Pleasing plant shapes explained by new computer model

...aisy its delicate symmetry? That was the question tackled by University of Calgary computer scientists, who have answered one of biology's enduring questions with an animated model that provides the most detailed simulation of how plants grow into recognizable shapes. In the article "A plausible model of p...

Uncovering sex-change secrets of black sea bass

... Newington, NH. But the sex change problem must be tackled if fish farmers are to bring a high-quality fish to market. "We invest in our brood stocks, the parents of the young fish, much as a thoroughbred horse farm invests in mares and stallions," he says. "It doesn't do us much good if we always have to go...

Cholera pathogen reveals how bacteria generate energy to live

...published in the Journal of Bacteriology, Barquera tackled the question of how the structure of the enzyme is organized with respect to the two sides of the membrane. The problem is that the enzyme is not amenable to standard methods of determining structure. Since an ion pump needs to carry ions from one si...

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