Evolutionary ‘time travel’ reveals enzyme’s origins, possible future designs

“The distinction between the past, present and future is only a stubbornly persistent illusion,” Albert Einstein wrote. Now, researchers have used evolutionary “time travel” to study how an enzyme has evolved, with implications for future design. They will present their results at ACS Fall 2021.

New study details enzyme that allows coronavirus to resist antiviral medications

A new Iowa State University study details the structure of a critical enzyme present in SARS-CoV-2, the coronavirus that causes COVID-19. This enzyme removes nucleoside antiviral medications from the virus’s RNA, rendering many treatments ineffective. Scientists could use data uncovered in the new study to find ways to inhibit the enzyme, possibly leading to more effective treatments.

University of Nebraska Medical Center researchers reveal elusive inner workings of antioxidant enzyme with therapeutic potential

The enzyme manganese superoxide dismutase helps maintain human health by keeping the amount of reactive oxygen molecules in cells under control. Using neutron scattering at ORNL, researchers obtained a complete atomic portrait of the enzyme, revealing key information about its catalytic mechanism.

NUS researchers target ‘undercover’ gene that helps cancer cells proliferate

Researchers from the Cancer Science Institute of Singapore at the National University of Singapore found that little-known genes called “onco-requisite factors” can enlist other genes to assist them in helping cancer cells proliferate. The gene produces an enzyme called aldehyde dehydrogenase that recruits other enzymes to supply cancer cells with energy for growth. As such, depriving cells of aldehyde dehydrogenase may be a possible way to treat cancer.

Targeting SARS-CoV-2 Enzyme with Inhibitors

As the COVID-19 pandemic continues to spread, many researchers are studying epidemiological models to predict its propagation. However, a mathematician and expert in complex systems decided to focus on finding targets within SARS-CoV-2 for new drugs to attack. In the journal Chaos, he discusses the dramatic increase in the sensitivity of the main protease of SARS-CoV-2 to small disturbances, which made him suspect there is a role for inhibitors to play in killing the virus.