Separate Sets of Mutations Enhance Activity and Substrate Scope of Amine Dehydrogenase
作者:Robert D. Franklin、Conner J. Mount、Bettina R. Bommarius、Andreas S. Bommarius
DOI:10.1002/cctc.201902364
日期:2020.5.7
average of 2.5‐fold higher activity toward aliphaticketones and an 8.0 °C increase in melting temperature. L‐AmDH‐TV did not show significant changes in relative activity for different substrates. In contrast, L39A, L39G, A112G, and T133G in varied combinations added to L‐AmDH‐TV changed the shape of the substrate binding pocket. L‐AmDH‐TV was not active on ketones larger than 2‐hexanone. L39A and L39G
The present invention relates to the use of specific organic compounds as flavor and fragrance material. Furthermore the invention relates to new specific organic compounds and their synthesis, as well to flavor and fragrance formulations comprising at least one of the specific organic compounds.
This invention provides novel 4-oxoquinolizine compounds and their uses for a series of broad-spectrum antibiotics having no cross-resistance to existing or emerging classes of antibiotics. In addition the novel 4-oxoquinolizine compounds are useful against CDC Category A and B pathogens The invention also provides pharmaceutical compositions comprising certain 4-oxoquinolizines in combination with subinhibitory concentrations of polymyxin B against clinical isolates which are resistant to quinolones, carbapenems and other antimicrobial agents.