Table I. Structures of native and trimmed AGPs.

Residue	Native AGP	Trimmed AGPs
		1	2	3	4
Araf→a	19.2	1.0	1.1	0.8	0.7
→2Araf→	0.3	0.0	0.3	0.6	0.5
→5Araf→	3.0	0.0	0.0	0.0	1.8
Fucp→	0.4	0.0	0.0	0.0	0.0
Galp→	7.4	16.5	18.4	17.7	2.9
→3Galp→	12.4	8.7	4.0	4.1	0.4
→6Galp→	13.9	29.1	30.9	4.2	2.4
→3,6Galp→	31.2	18.3	12.1	12.7	0.9
Uronic acidsb	12.2	11.3	5.2	4.0	0.4
Totalc	100.0	84.9	72.0	44.1	10.0

^aProportions of methylated sugars are expressed in mol %.  ^bContent of uronic acids was determined by a modified carbazole-sulfuric acid method using GlcA as the standard.   ^cTotal sugar content was determined by the phenol-sulfuric acid method and is expressed in percentage of that of native AGP.