Single-molecule manipulation for the masses

Scientists have developed a new massively-parallel approach for manipulating single DNA and protein molecules and studying their interactions under force. The finding appears in the June 2 issue of Biophysical Journal.

Designer threads: New insight into protein fiber assembly

Understanding how mixtures of proteins assemble and how to manipulate them in the laboratory has many exciting biomedical applications, such as providing scaffolds for the engineering of tissues that can replace diseased ...

Duke technique is turning proteins into glass

Duke University researchers have devised a method to dry and preserve proteins in a glassified form that seems to retain the molecules' properties as workhorses of biology.

Imaging studies reveal order in programmed cell death

(PhysOrg.com) -- Every day, about 10 billion cells in a human body commit suicide. Cells infected by virus, that are transformed or otherwise dysfunctional altruistically sacrifice themselves for the greater good. Now, new ...

Cell-cell interactions adapt to the stiffness of the environment

The ability of tissue cells to stick to one another is critical for many physiological and pathological processes. But normal living cells need to do much more than just hold on tight, they must monitor their environment ...

An atomic-level look at an HIV accomplice

(PhysOrg.com) -- Since the discovery in 2007 that a component of human semen called SEVI boosts infectivity of the virus that causes AIDS, researchers have been trying to learn more about SEVI and how it works, in hopes of ...

Toxic molecule may help birds 'see' north and south

Researchers at the University of Illinois report that a toxic molecule known to damage cells and cause disease may also play a pivotal role in bird migration. The molecule, superoxide, is proposed as a key player in the mysterious ...

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