Fig. 3

LsAA9A and CvAA9A digestion products of MLG suggest preference for Cell4 region cleavage. Products of LsAA9A (a) and CvAA9A (b) activity on barley MLG with 4 mM ascorbate were analysed by MALDI-ToF MS (performed in triplicate). Both enzymes can produce both C1 and C4 oxidation on MLG (1,4-ox; oxidized C1 and C4, see insets). Further, oligosaccharide profiles show a distinct pattern indicative of the mechanism of attack and substrate specificity of each enzyme on MLG. c Proposed region of cleavage