The Enzyme Database

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Accepted name: L-galactose 1-phosphate phosphatase
Reaction: β-L-galactose 1-phosphate + H2O = L-galactose + phosphate
Other name(s): VTC4 (gene name) (ambiguous); IMPL2 (gene name) (ambiguous)
Systematic name: β-L-galactose-1-phosphate phosphohydrolase
Comments: The enzyme from plants also has the activity of EC, inositol-phosphate phosphatase. The enzymes have very low activity with D-galactose 1-phosphate (cf. EC, D-galactose 1-phosphate phosphatase).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Laing, W.A., Bulley, S., Wright, M., Cooney, J., Jensen, D., Barraclough, D. and MacRae, E. A highly specific L-galactose-1-phosphate phosphatase on the path to ascorbate biosynthesis. Proc. Natl. Acad. Sci. USA 101 (2004) 16976–16981. [DOI] [PMID: 15550539]
2.  Torabinejad, J., Donahue, J.L., Gunesekera, B.N., Allen-Daniels, M.J. and Gillaspy, G.E. VTC4 is a bifunctional enzyme that affects myoinositol and ascorbate biosynthesis in plants. Plant Physiol. 150 (2009) 951–961. [DOI] [PMID: 19339506]
3.  Petersen, L.N., Marineo, S., Mandala, S., Davids, F., Sewell, B.T. and Ingle, R.A. The missing link in plant histidine biosynthesis: Arabidopsis myoinositol monophosphatase-like2 encodes a functional histidinol-phosphate phosphatase. Plant Physiol. 152 (2010) 1186–1196. [DOI] [PMID: 20023146]
[EC created 2014]

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