Immobilization of an artificial imine reductase within silica nanoparticles improves its performance
作者:Martina Hestericová、M. Rita Correro、Markus Lenz、Philippe F.-X. Corvini、Patrick Shahgaldian、Thomas R. Ward
DOI:10.1039/c6cc04604e
日期:——
Immobilization and protection of artificialiminereductase in silica nanoparticles increases its activity and protects from various denaturing stresses.
Artificial Transfer Hydrogenases Based on the Biotin−(Strept)avidin Technology: Fine Tuning the Selectivity by Saturation Mutagenesis of the Host Protein
作者:Christophe Letondor、Anca Pordea、Nicolas Humbert、Anita Ivanova、Sylwester Mazurek、Marjana Novic、Thomas R. Ward
DOI:10.1021/ja061580o
日期:2006.6.1
Incorporation of biotinylated racemic three-legged d(6)-piano stool complexes in streptavidin yields enantioselective transfer hydrogenation artificial metalloenzymes for the reduction of ketones. Having identified the most promising organometallic catalyst precursors in the presence of wild-type streptavidin, fine-tuning of the selectivity is achieved by saturation mutagenesis at position S112. This choice for the genetic optimization site is suggested by docking studies which reveal that this position lies closest to the biotinylated metal upon incorporation into streptavidin. For aromatic ketones, the reaction proceeds smoothly to afford the corresponding enantioenriched alcohols in up to 97% ee (R) or 70% (S). On the basis of these results, we suggest that the enantioselection is mostly dictated by CH/pi interactions between the substrate and the eta(6)-bound arene. However, these enantiodiscriminating interactions can be outweighed in the presence of cationic residues at position S112 to afford the opposite enantiomers of the product.
[EN] CDK INHIBITORS AND PHARMACEUTICAL USES THEREOF<br/>[FR] INHIBITEURS DE CDK ET LEURS UTILISATIONS PHARMACEUTIQUES
申请人:[en]RISEN (SUZHOU) PHARMA TECH CO., LTD.
公开号:WO2023205892A1
公开(公告)日:2023-11-02
The disclosure relates to bifunctional CDK-modulating compounds having the structure W-L-T, where W is a targeting group (1a), 1b) and (1c), that binds specifically to a CDK protein, T is an E3-ligase binding group, and L is absent or is a bivalent linking group that connects W and T together via a covalent linkage. Compounds and pharmaceutical compositions thereof can promote degradation of one or more CDK protein in a cell and are thus useful for treating, inhibiting, and preventing CDK-associated diseases, disorders and conditions, including cancers. Formulas (1a), (1b) & (1c):