List/Grid Tag Archives: biology

Water molecules control inactivation and recovery of potassium channels

Water molecules control inactivation and recovery of potassium channels

July 29, 2013 Just 12 molecules of water cause the long post-activation recovery period required by potassium ion channels before they can function again. Using molecular simulations that modeled a potassium channel and its immediate cellular environment, atom for atom, University of Chicago scientists have revealed this new mechanism in the function of a nearly universal biological structure, with implications ranging from fundamental biology to the design of pharmaceuticals.

Young human-specific genes correlated with brain evolution

Young human-specific genes correlated with brain evolution

October 18, 2011 Young genes that appeared since the primate branch split from other mammal species are expressed in unique structures of the developing human brain, a new analysis finds. The correlation suggests that scientists studying the evolution of the human brain should look to genes considered recent by evolutionary standards and early stages of brain development.

AP: Rokita snags 4th District seat

AP: Rokita snags 4th District seat

PLAINFIELD, Ind. (AP) РThe Associated Press declared Secretary of State Todd Rokita as the winner in the state’s 4th District race.

Fossils of snake eating dino eggs found in India

Fossils of snake eating dino eggs found in India

BANGKOK — The fossilized remains of a 67 million-year-old snake found coiled around a dinosaur egg offer rare insight into the ancient reptile’s dining habits and evolution, scientists said Tuesday. The findings, which appeared in Tuesday’s issue of the PLoS Biology journal, provide the first evidence that the 11.5-foot-long snake fed on eggs and hatchlings of saurapod dinosaurs, meaning it was one of the few predators to prey on the long-necked herbivores.

University of Illinois Researchers Discover Evidence of Memory in the Zebra Finch Songbird’s Brain

University of Illinois Researchers Discover Evidence of Memory in the Zebra Finch Songbird’s Brain

When a zebra finch hears a new song from a member of its own species, the experience changes gene expression in its brain in unexpected ways, researchers report. The sequential… Read more »

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