Membrane-enclosed multienzyme (MEME) synthesis of 2,7-anhydro-sialic acid derivatives

Autor: Louise E. Tailford, Gwénaëlle Le Gall, Simone Dedola, Sandra Tribolo, Robert A. Field, Dimitrios Latousakis, Xi Chen, Marie Monestier, Martin Rejzek, Hai Yu, Andrew Bell, Nathalie Juge, Ian J. Colquhoun
Rok vydání: 2017
Předmět:
Zdroj: Monestier, M, Latousakis, D, Bell, A, Tribolo, S, Tailford, L E, Colquhoun, I J, Gall, G L, Yu, H, Chen, X, Rejzek, M, Dedola, S, Field, R A & Juge, N 2017, ' Membrane-enclosed multienzyme (MEME) synthesis of 2,7-anhydro-sialic acid derivatives ', Carbohydrate Research . https://doi.org/10.1016/j.carres.2017.08.008
Carbohydrate Research
ISSN: 0008-6215
DOI: 10.1016/j.carres.2017.08.008
Popis: Naturally occurring 2,7-anhydro-alpha-N-acetylneuraminic acid (2,7-anhydro-Neu5Ac) is a transglycosylation product of bacterial intramolecular trans-sialidases (IT-sialidases). A facile one-pot two-enzyme approach has been established for the synthesis of 2,7-anhydro-sialic acid derivatives including those containing different sialic acid forms such as Neu5Ac and N-glycolylneuraminic acid (Neu5Gc). The approach is based on the use of Ruminoccocus gnavus IT-sialidase for the release of 2,7-anhydro-sialic acid from glycoproteins, and the conversion of free sialic acid by a sialic acid aldolase. This synthetic method, which is based on a membrane-enclosed enzymatic synthesis, can be performed on a preparative scale. Using fetuin as a substrate, high-yield and cost-effective production of 2,7-anhydro-Neu5Ac was obtained to high-purity. This method was also applied to the synthesis of 2,7-anhydro-Neu5Gc. The membrane-enclosed multienzyme (MEME) strategy reported here provides an efficient approach to produce a variety of sialic acid derivatives.
Graphical abstract Membrane-enclosed multienzyme (MEME) approach for the production of 2,7-anhydro-sialic acid derivatives.Image 1
Highlights • A novel membrane enclosed multiple enzyme approach was developed for the production of 2,7-anhydro-sialic acid derivatives. • 2,7-anhydro-Neu5Ac was produced in high-yield and high-purity. • Neu5Gc-rich glycoprotein was produced using a one-pot two-step enzymatic synthesis. • The method allowed the synthesis of a novel compound, 2,7-anhydro-Neu5Gc.
Databáze: OpenAIRE