EC Number   |
Substrates |
Organism |
Products |
Reversibility |
|---|
  2.7.8.31 | UDP-alpha-D-galactose + undecaprenyl phosphate |
- |
Escherichia coli |
UMP + alpha-D-galactosyl-diphosphoundecaprenol |
- |
? |
| 2.7.8.31 | UDP-alpha-D-galactose + undecaprenyl phosphate |
- |
Caulobacter vibrioides |
UMP + alpha-D-galactosyl-diphosphoundecaprenol |
- |
? |
| 2.7.8.31 | UDP-alpha-D-galactose + undecaprenyl phosphate |
- |
Caulobacter vibrioides CB15 |
UMP + alpha-D-galactosyl-diphosphoundecaprenol |
- |
? |
| 2.7.8.31 | UDP-glucose + ditrans,octacis-undecaprenyl phosphate |
EDTA-treated Xanthomonas campestris cells are used as both enzyme preparation and lipid-P acceptor, and UDP-Glc, GDP-Man, and UDP-glucuronic acid are used as sugar donors. A linear pentasaccharide unit is assembled on a polyprenol-P lipid carrier by the sequential addition of glucose-1-P, glucose, mannose, glucuronic acid, and mannose |
Xanthomonas campestris |
UMP + alpha-D-glucopyranosyl-diphospho-ditrans,octacis-undecaprenol |
- |
? |
| 2.7.8.31 | UDP-glucose + ditrans,octacis-undecaprenyl phosphate |
GumD is involved in biosynthesis of the pentasaccharide repeating unit of xanthan. It is suggested that the wild-type Xanthomonas oryzae-produced xanthan is assembled by the sequential addition of UDP-glucose, UDP-glucose, GDP-mannose, UDPglucuronic acid, and GDP-mannose onto a polyprenol phosphate carrier, by the glycosyltransferase homologues encoded by the gumD, gumM, gumH, gumK, and gumI genes, respectively |
Xanthomonas oryzae |
UMP + alpha-D-glucopyranosyl-diphospho-ditrans,octacis-undecaprenol |
- |
? |
| 2.7.8.31 | UDP-glucose + ditrans,octacis-undecaprenyl phosphate |
the C-terminal domain of the gumD gene product is sufficient for its glucosyl-1-phosphate transferase activity |
Xanthomonas campestris |
UMP + alpha-D-glucopyranosyl-diphospho-ditrans,octacis-undecaprenol |
- |
? |
| 2.7.8.31 | more |
the enzyme catalyzes the initial step of the xanthan biosynthesis that transfers a glucose-phosphate residue from UDP-glucose to an isoprenoid lipid carrier |
Xanthomonas campestris pv. campestris |
? |
- |
? |
| 2.7.8.31 | more |
the enzyme catalyzes the initial step of the xanthan biosynthesis that transfers a glucose-phosphate residue from UDP-glucose to an isoprenoid lipid carrier |
Xanthomonas campestris pv. campestris B100 |
? |
- |
? |
| 2.7.8.31 | UDP-glucose + ditrans,octacis-undecaprenyl phosphate |
the enzyme is involved in biosynthesis of xanthan |
Xanthomonas campestris |
UMP + alpha-D-glucopyranosyl-diphospho-ditrans,octacis-undecaprenol |
- |
? |
| 2.7.8.31 | UDP-alpha-D-glucose + undecaprenyl phosphate |
UDP-alpha-D-glucose is the preferred substrate |
Escherichia coli |
UMP + alpha-D-glucosyl-diphosphoundecaprenol |
- |
? |
