https://www.selleckchem.com/products/icg-001.html 5%. Together with optimizing enzyme expression of acetyl-CoA carboxylase and malonyl-CoA reductase, the final strain is able to produce 3-HP with a final titer of 864.5 mg/L, which is a more than 24-fold improvement compared with that of the starting strain. Our strategy combines the PK pathway with the oxidative pentose phosphate pathway for the efficient provision of acetyl-CoA and NADPH, which provides both a higher theoretical yield and overall yield than the reported yeast-based 3-HP production strategies via the malonyl-CoA reductase-dependent pathway and sheds light on the construction of efficient platform cell factories for other products.In vivo expression of metalloproteins requires specific metal trafficking and incorporation machinery inside the cell. Synthetic designed metalloproteins are typically purified without the target metal, which is subsequently introduced through in vitro reconstitution. The extra step complicates protein optimization by high-throughput library screening or laboratory evolution. We demonstrate that a designed coiled-coil iron-sulfur protein (CCIS) assembles robustly with [4Fe-4S] clusters in vivo. While in vitro reconstitution produces a mixture of oligomers that depends on solution conditions, in vivo production generates a stable homotrimer coordinating a single, diamagnetic [4Fe-4S]2+ cluster. The multinuclear cluster of in vivo assembled CCIS is more resistant to degradation by molecular oxygen. Only one of the two metal coordinating half-sites is required in vivo, indicating specificity of molecular recognition in recruitment of the metal cluster. CCIS, unbiased by evolution, is a unique platform to examine iron-sulfur protein biogenesis and develop synthetic multinuclear oxidoreductases.An "event-based" approach to characterize complex air pollutant mixtures was applied in the Oil Sands region of northern Alberta, Canada. This approach was developed to better-inform sour