| EC |
2.4.1.123 |
| Accepted name: |
inositol 3-α-galactosyltransferase |
| Reaction: |
UDP-α-D-galactose + myo-inositol = UDP + O-α-D-galactosyl-(1→3)-1D-myo-inositol |
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For diagram of stachyose biosynthesis, click here |
| Glossary: |
O-α-D-galactosyl-(1→3)-1D-myo-inositol = galactinol |
| Other name(s): |
UDP-D-galactose:inositol galactosyltransferase; UDP-galactose:myo-inositol 1-α-D-galactosyltransferase; UDPgalactose:myo-inositol 1-α-D-galactosyltransferase; galactinol synthase; inositol 1-α-galactosyltransferase; uridine diphosphogalactose-inositol galactosyltransferase; GolS; UDP-galactose:myo-inositol 3-α-D-galactosyltransferase |
| Systematic name: |
UDP-α-D-galactose:myo-inositol 3-α-D-galactosyltransferase |
| Comments: |
An enzyme from plants involved in the formation of raffinose and stachyose [cf. EC 2.4.1.67 (galactinol—raffinose galactosyltransferase) and EC 2.4.1.82 (galactinol—sucrose galactosyltransferase)]. |
| Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 79955-89-8 |
| References: |
| 1. |
Pharr, D.M., Sox, H.N., Locy, R.D. and Huber, S.C. Partial characterization of the galactinol forming enzyme from leaves of Cucumis sativus L. Plant Sci. Lett. 23 (1981) 25–33. |
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| [EC 2.4.1.123 created 1984, modified 2003] |
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