Biocatalysis employing imine reductases is a promising approach for the one‐step generation of chiral amines from ketones. The enzymes reported for this process suffer from low activity and moderate stereoselectivity. We identified a set of enzymes that facilitate this reaction with high to quantitative conversions from a library of 28 imine reductases. This enabled the conversion of ketones with ammonia
GLYCOPROTEIN WITH REDUCED ACETYLATION RATE OF SIALIC ACID RESIDUES
申请人:Hexal AG
公开号:US20220119471A1
公开(公告)日:2022-04-21
The present invention relates to a method or process of producing a glycoprotein that interacts with, or acts as an agonist to, the erythropoietin receptor (EpoR), which glycoprotein has modified efficacy, wherein the method or process comprises the heterologous expression of said glycoprotein in a suitable expression system, and wherein at least one step is provided that results in a reduced acetylation rate of sialic acid residues in the glycoprotein (FIG.
16
).