Table 1. Relative integrated values of GlcA and MeGlcA side chains in xylans from the wild type, gxm1/2/3 and PtrGXM-complemented gxm1/2/3 plants.
| Sample | Ratio of MeGlcA relative to total GlcA and MeGlcA side chainsa |
| Wild type | 58.9% |
| gxm1/2/3 | 0% |
| gxm1/2/3+PtrGXM1 | 8.4% |
| gxm1/2/3+PtrGXM2 | 11.3% |
| gxm1/2/3+PtrGXM3 | 15.3% |
| gxm1/2/3+PtrGXM4 | 21.0% |
a
Ratio of MeGlcA relative to the total GlcA and MeGlcA side chains was calculated by dividing the integrated value of MeGlcA by that of the total GlcA and MeGlcA side chains based on the NMR data in Fig. 7.