At the heart of the circadian clock

(Phys.org) —Cellular processes in most organisms are regulated by an internal clock, and proteins called cryptochromes are at the core of its central oscillator. The three dimensional structures of cryptochromes from mouse ...

Study tracks the evolutionary history of a cancer-related gene

How and when evolution generates diversity or gives form to proteins, living beings' functional building blocks, are essential questions that still surround the theory of evolution. In humans, the majority of genes have emerged ...

Computer scientists develop new way to study molecular networks

Computer scientists at Virginia Tech developed a new approach to address the shortcomings in the computational analysis of the multiple ways interactions can occur within cells. Their award winning work may lead to further ...

Great apes, small numbers

Sumatran orangutans have undergone a substantial recent population decline, according to a new genetic study, but the same research revealed the existence of critical corridors for dispersal migrations that, if protected, ...

First description of a triple DNA helix in a vacuum

A team of researchers at the Institute for Research in Biomedicine (IRB Barcelona) and the Barcelona Supercomputing Center (BSC) have managed for the first time to extract trustworthy structural information from a triple ...

Defect in transport system causes DNA chaos in red blood cells

Within all our cells lies two meters of DNA, highly ordered in a structure of less than 10 micro meters in diameter. Special proteins called histones act as small building bricks, organising our DNA in this structure. Preservation ...

Mice with fewer insulin-signaling receptors don't live longer

Scientists studying longevity thought it might be good to lack a copy of a gene, called IGF1 receptor, that is important in insulin signaling. Previous studies showed invertebrates that lacked the copy lived longer, even ...

Enzymes for cell wall synthesis conserved across species barriers

Plants have neither supportive bone tissue nor muscles, and yet they can form rigid structures like stalks and even tree trunks. This is due to the fact that plant cells are enveloped by a stable cell wall. The main component ...

New light shed on cell division

Genes control everything from eye color to disease susceptibility, and inheritance - the passing of the genes from generation to generation after they have been duplicated - depends on centromeres. Located in the little pinched ...

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