New commercially available HTP methods are compared and tailored to suit family-1 plant GTs. A pH-Sensitive assay, UDP-GloTM GT assay, Phosphate GT assay, and UDP2 TR-FRET assay were studied. Substrate screening and kinetic parameters (KM, Vmax, and kcat) were quantified. The tailored UDP-GloTM GT assay was utilized in enhancement and inhibition of UDP-glucose hydrolase and glycosylation reactions of family-1 plant GTs. It was successfully determined that (apo)carotenoids are able to enhance and drive glucoside formation. Therefore, this demonstrates the novel physiological function of (apo)carotenoids and their ability to act as allosteric activators of family-1 plant GTs.
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New commercially available HTP methods are compared and tailored to suit family-1 plant GTs. A pH-Sensitive assay, UDP-GloTM GT assay, Phosphate GT assay, and UDP2 TR-FRET assay were studied. Substrate screening and kinetic parameters (KM, Vmax, and kcat) were quantified. The tailored UDP-GloTM GT assay was utilized in enhancement and inhibition of UDP-glucose hydrolase and glycosylation reactions of family-1 plant GTs. It was successfully determined that (apo)carotenoids are able to enhance and...
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