Real-time investigation of mannosyltransferase function of a Xylella fastidiosa recombinant GumH protein using QCM-D

► An enzymatic assay for real-time monitoring the mannosyltransferase function was developed. ► The QCM procedure developed allows studying biomolecular interaction in real-time with high sensitivity and low cost. ► A High Performance Liquid Chromatography method was used to validated the results obtained by QCM.