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. 2000 Jul;123(3):1173–1184. doi: 10.1104/pp.123.3.1173

Table III.

Enzyme activity of TBG4 expressed in yeast

Substrate Galactose Released
Boiled Active
μg
Lactose 0 0.1
CSP 0 5
ASP 0 15
HCF 0 4
LG 0 117

Galactosyl residue hydrolysis from lactose, chelator soluble pectin (CSP), alkali soluble pectin (ASP), and hemicellulosic (HCF) fractions purified from tomato fruit cell walls and a commercially prepared lupin galactan (LG).