Certain strains of a bacterium found in the gut of some animals, Lactobacillus plantarum, are able to counter hyperuricemia, a condition caused by high levels of uric acid in the blood.
Henry H Le, Chester JJ Wrobel ... Frank C Schroeder
Caenorhabditis elegans homologs of carboxylesterases that localize to intestinal organelles orchestrate the assembly of modular signaling molecules from building blocks that integrate diverse metabolic pathways.
Marian Breuer, Tyler M Earnest ... Zaida Luthey-Schulten
A near-complete flux balance analysis model of a minimal cell demonstrates the high essentiality of its metabolic genes, agrees well with experimental essentiality data and suggests some further gene removals.
A structural and biochemical approach shows that CTP binding and hydrolysis regulate nucleation, spreading, and recycling of a chromosome segregation protein ParB.
Daria N Shalaeva, Dmitry A Cherepanov ... Armen Y Mulkidjanian
In potassium-dependent NTPases, insertion of the activating potassium ion into the active site leads to rotation of the gamma-phosphate yielding a near-eclipsed, catalytically productive conformation of the triphosphate chain.
Genetic change among enzyme orthologous with similar phenotypic properties can cause substantial differences in evolutionary response to a new enzyme function in terms of their molecular and fitness outcomes.
Purine recycling deficiency triggers metabolic and neurological defects reminiscent of Lesch–Nyhan disease in Drosophila, paving the way for studying this disorder and carrying out drug screening in an invertebrate organism.