Rhamnogalacturonans (RGs) are pectic polysaccharides found in the cell wall, which contain a repeating dissacharides backbone:α-D-GalpA-(1,2)-α-L-Rhap-(1)The antibody was raised against sycamore RG-I/MeBSA complex and binds to GalA1->4MeGalA1->4MeGalA1->4MeGalA1->4MeGalA1->4GalA pectic backbone.
