Reaction catalyzed by kojibiose phosphorylase (2.4.1.230)

+

=

+

+

beta-D-glucose 1-phosphate

+

stachyose

=

2-alpha-D-glucopyranosyl-stachyose

+

2G(2-alpha-D-glucopyranosyl)2-stachyose

+

2G(2-alpha-D-glucopyranosyl)3-stachyose