rhamnogalacturonan I
rhamnogalacturonan i
A family of polysaccharides that all contain a linear backbone composed of repeating units of the disaccharide α-<small>D</small>-Gal<em>p</em>A-(l→2)-α-<small>L</small>-Rha<em>p</em> joined by α-(1→4) linkages.