Proceedings of the National Academy of Sciences (PNAS)

Host tissues and medical devices are ideal surfaces for bacterial pathogens to colonize and infect. Fluid flow is thought to flush bacteria off these surfaces, but University of Illinois researchers have found that some bacteria can strengthen their adhesion to the surface when flow is applied. In...

Researchers have discovered the addition of fluid to human pathogens triggers a "windchill-like" effect that sensitizes cells to hydrogen peroxide, a well-known agent of cell stress and DNA damage. Their findings have been published in PNAS.

Researchers at the Beckman Institute for Advanced Science and Technology have developed an innovative way to ‘see’ the fine structure and chemical composition of a human cell with unmatched clarity and precision. Their technique, which appeared in PNAS earlier this week, takes a creative — and...

Although researchers have learned much about SARS-CoV-2, the vast array of unexplained symptoms associated with acute and post-acute ("long") COVID-19 warrants the search for additional biochemical pathways involved. On the basis of amino-acid sequence analyses and computational approaches, it has...

New research from University of Illinois biochemistry professor Raven Huang reveals that lethal ribosomal damage in bacteria can be reversed by a pair of bacterial enzymes named PrfH and RtcB. The finding raises the question of whether similar ribosomal damage can also be repaired in humans because...

Deciphering the molecular basis of cell-cell communications during early pregnancy has long been a challenge of reproductive scientists. New research from the University of Illinois further illuminates the fascinating dialogue between the developing embryo and endometrium by shedding new light on...

A natural small molecule derived from a cypress tree can transport iron in live mice and human cells lacking the protein that normally does the job, easing a buildup of iron in the liver and restoring hemoglobin and red blood cell production, a new study found.

Embryonic stem cells and other pluripotent cells divide rapidly and have the capacity to become nearly any cell type in the body. Scientists have long sought to understand the signals that prompt stem cells to switch off pluripotency and adopt their final functional state.

The Velcro-like cellular proteins that hold cells and tissues together also perform critical functions when they experience increased tension. A new University of Illinois Urbana-Champaign study observed that when tugged upon in a controlled manner, these proteins – called cadherins – communicate...

Many researchers have postulated that the lipid composition of the membrane containing ion channels is critical for function. However, there are limited data about the structure and function of natively bound lipids. Some molecular simulation experiments have provided some insight; but, data from...