申请人:Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.
公开号:US20150238597A1
公开(公告)日:2015-08-27
The present invention relates to the field of synthesizing and biologically evaluating of a novel class of carbohydrate-based vaccines. The new vaccines consist of a multi-modular structure which allows applying the vaccine to a whole variety of pathogenes. This method allows preparing vaccines against all pathogens expressing immunogenic carbohydrate antigens. As conjugation of antigenic carbohydrates to proteins is not required the conjugate vaccine is particularly heat stable. No refrigeration is required, a major drawback of protein-based vaccines.
Synthesis of Deoxysugars from Aliphatic α‐Ketoacids and Aldoses Catalyzed by Thermostable Transketolase Variants from
<i>Geobacillus stearothermophilus</i>
作者:Nazim Ocal、Giuseppe Arbia、Aurélie Lagarde、Muriel Joly、Samantha Gittings、Kirsty M. Graham、Franck Charmantray、Laurence Hecquet
DOI:10.1002/adsc.202201190
日期:2023.1.10
We described a strategy for the enzymatic synthesis of 1-deoxy and 1,2-deoxyketoses from the aliphatic α-ketoacids, pyruvate and 2-oxobutyrate, as donors and natural aldoses of variable chain length as acceptors, catalyzed by thermostable transketolase variants from Geobacillus stearothermophilus (TKgst). Analytical studies have been carried out on a panel of TKgst variants with the appropriate substrates
Broadening Deoxysugar Glycodiversity: Natural and Engineered Transaldolases Unlock a Complementary Substrate Space
作者:Madhura Rale、Sarah Schneider、Georg A. Sprenger、Anne K. Samland、Wolf-Dieter Fessner
DOI:10.1002/chem.201002942
日期:2011.2.25
inaccessible by available enzymes, from a [3×8] substrate matrix. Although aliphatic and hydroxylated aliphatic aldehydes were good substrates, D‐lactaldehyde was found to be an inhibitor possibly as a consequence of inactive substratebinding to the catalytic Lys residue. A 1‐hydroxy‐2‐alkanone moiety was identified as a common requirement for the donor substrate, whereas propanone and butanone were inactive