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. 2020 Jul 2;11:997. doi: 10.3389/fpls.2020.00997

Figure 7.

Figure 7

MpRRT3 and FRB1/AtRRT8 have RG-I rhamnosyltransferase activity. (A, B) SDS-PAGE of the recombinant (A) MpRRT3 and (B) FRB1/AtRRT8 proteins with a C-terminal FLAG tag expressed in tobacco leaves. The proteins were detected by immunoblotting using an anti-FLAG antibody. (C, D) Rhamnosyltransferase activity of (C) MpRRT3 and (D) FRB1/AtRRT8. The recombinant proteins were reacted with 50 µM GR8-PA and 0.5 mM UDP-Rha at 30°C for 1 h. The upper and lower chromatograms represent after enzyme reactions with the fraction from control proteins and the recombinant proteins.