'Vicious cycle' shields, spreads cancer cells

A "vicious cycle" produces mucus that protects uterine and pancreatic cancer cells and promotes their proliferation, according to researchers at Rice University. The researchers offer hope for a therapeutic solution.

Polymers could help enzymes treat diseases

(Phys.org) —Conditions such as celiac disease, phenylketonuria, lactose intolerance and exocrine pancreatic disease involve abnormal enzyme activity. Enzymes administered orally could help sufferers. However, because enzymes, ...

Long-standing plant biochemistry mystery solved

Scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory and collaborators at the Karolinska Institute in Sweden have discovered how an enzyme "knows" where to insert a double bond when desaturating ...

Researchers propose new old way to purify carbon nanotubes

(Phys.org) —An old, somewhat passé, trick used to purify protein samples based on their affinity for water has found new fans at the National Institute of Standards and Technology, where materials scientists are using ...

Watching a protein as it functions

(Phys.org) —When it comes to understanding how proteins perform their amazing cellular feats, it is often the case that the more one knows the less one realizes they know. For decades, biochemists and biophysicists have ...

Immunoproteasome crystal structure determined

Like a shredder, the immunoproteasome cuts down proteins into peptides that are subsequently presented on the cellular surface. The immune system can distinguish between self and nonself peptides and selectively kills cells ...

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