GDP-beta-L-colitose + beta-D-galactosyl-(1->3)-N-acetyl-D-glucosamine <=> alpha-L-colitosyl-(1->2)-beta-D-galactosyl-(1->3)-N-acetyl-D-glucosamine + GDP + H(+)
gdp-beta-l-colitose + beta-d-galactosyl-(1->3)-n-acetyl-d-glucosamine <=> alpha-l-colitosyl-(1->2)-beta-d-galactosyl-(1->3)-n-acetyl-d-glucosamine + gdp + h(+)
GDP-beta-L-colitose + beta-D-galactosyl-(1->3)-N-acetyl-D-glucosamine <=> alpha-L-colitosyl-(1->2)-beta-D-galactosyl-(1->3)-N-acetyl-D-glucosamine + GDP + H(+)
gdp-beta-l-colitose + beta-d-galactosyl-(1->3)-n-acetyl-d-glucosamine <=> alpha-l-colitosyl-(1->2)-beta-d-galactosyl-(1->3)-n-acetyl-d-glucosamine + gdp + h(+)