Methylation increases both the activity and instability of the signaling protein Notch.

Post-publication peer reviewers had questioned data about the supposed fat-browning enzyme from the get-go.

A new experimental system demonstrates that precursors of ribonucleotides, amino acids, and lipids may have simultaneously arisen from the same prebiotic chemistry.

Increased collagen expression is a common feature of many different pathways to extended longevity in worms.

Intact growth hormone signaling pathways are needed for methionine restriction to extend mouse lifespan.

Assistant Professor, Huffington Center On Aging, Baylor College of Medicine. Age: 38

A former Iowa State University researcher faces up to 10 years in prison for faking data involving a study of an HIV vaccine.

Strong selective pressure can lead to rapid and reproducible evolution in bacteria.

A screen of 9,000 small molecules identifies a treatment that improves the targeting of mesenchymal stem cells to sites of damaged tissue.

Researchers uncover a previously unknown way UV light can act on melanin, spurring cancer-causing mutations hours after sun exposure.

Circulating fats and acids drop in people and rats that aren’t getting enough sleep.

Scientists have determined the crystal structures of bacterial translocator proteins, but their functions remain unclear.

Jean Lindemann, the virologist who helped figure out that interferons were responsible for anti-viral responses, has passed away at age 90.

Researchers complete another interactive protein atlas, boosting the number of publicly available maps of human protein expression levels.

Researchers reveal clues regarding how an ancient mitochondrial enzyme helps maintain healthy cells across the tree of life.

Social adversity shapes humans’ immune systems—and probably their susceptibility to disease—by altering the expression of large groups of genes.

The stem cell that never was; post-publication peer review website faces legal trouble; biosecurity breaches at federal labs

Can mechanical forces alone be manipulated to create stem-like cells?

Propolis, a natural product used by honeybees to repair their hives, stimulates hair growth in shaved mice.

The Office of Research Integrity has finally pointed the finger in a case of suspected data manipulation in a 2006 Science paper.