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“#Heavy metals make soil enzymes 3 times weaker” Heavy Metals Make Soil Enzymes 3 Times Weaker, Says a Soil Scientist from RUDN University. Credit: RUDN University Heavy metals suppress enzyme activity in the soil by three to 3.5 times and have especially prominent effect on the enzymes that support carbon and sulfur circulation, according to…
“#Scientists develop new compound which kills both types of antibiotic resistant superbugs” Credit: University of Sheffield Researchers at the University of Sheffield have developed a new compound that is able to kill both gram-positive and gram-negative antibiotic-resistant bacteria. Gram-positive and gram-negative bacteria have different cell wall structures, but the new antibiotic compound is able to…
“#Study details how general anesthetics and ‘benzos’ act on receptors in the brain” A three-dimensional structure of the type A GABA receptor bound with GABA and propofol embedded in a cell membrane. Propofol is the most commonly used intravenous anesthetic and acts through the receptor. The receptor is colored in green, blue, and yellow for…
“#Attacking tumours directly on identification” Credit: CC0 Public Domain Theranostics, the combination of “therapy” and “diagnostics,” refers to drugs that are used not only to treat tumors but also to render them visible. The principle is as simple as it is ingenious: for example, in prostate cancer treatment, a prostate-specific antibody is radioactively labeled. Once…
“#New bacteria and algae process could help decarbonize UK military” A new biological engineering process that could help to decarbonise the UK military is set to be developed by researchers at the University of Sheffield. The cutting-edge research, led by academics in the University of Sheffield’s Department of Chemical and Biological Engineering, is developing a…
“#Scientists develop first drug-like compounds to inhibit elusive cancer-linked enzymes” Credit: CC0 Public Domain A team of scientists from the University of Michigan Rogel Cancer Center has developed the first drug-like compounds to inhibit a key family of enzymes whose malfunction is associated with several types of cancer, including an aggressive form of childhood leukemia….
“#Microbes working together multiply biomass conversion possibilities” Fungal biofilm growing on an oxygen permeable, helically coiled tubular membrane in an otherwise anaerobic bioreactor. The biofilm is removed from the reactor at the end of a fermentation run. Credit: M. Studer (BFH) With the race for renewable energy sources in full swing, plants offer one of…
“#Measuring the sensitivity of COVID tests with new material from NIST” The NIST material contains the two RNA fragments shown here. Each of these two fragments is roughly 4,000 letters long. NIST researchers chose to synthesize these particular fragments because they contain the RNA sequences targeted by a large number of diagnostic tests, including those…
“#Protein ‘chameleon’ colors long-term memory” Researchers at Rice University modeled the binding structures of actin and associated proteins they believe are responsible for the formation of longterm memory. Here, the beta hairpin form of zipper sequence is a potential core for the formation of intramolecular beta sheets. In the predicted complex structure of F-actin and…
“#Re-engineered enzyme could help reverse damage from spinal cord injury and stroke” In this rendering of the enzyme chondroitinase ABC, point mutations are represented by red balls. This re-engineered form of the enzyme is more stable and more active than the wild type and could be used to help reverse nerve damage caused by spinal…