The Enzyme Database

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Accepted name: thiamine phosphate phosphatase
Reaction: thiamine phosphate + H2O = thiamine + phosphate
Systematic name: thiamine phosphate phosphohydrolase
Comments: The enzyme participates in the thiamine biosynthesis pathway in eukaryotes and a few prokaryotes. These organisms lack EC, thiamine-phosphate kinase, and need to convert thiamine phosphate to thiamine diphosphate, the active form of the vitamin, by first removing the phosphate group, followed by diphosphorylation by EC, thiamine diphosphokinase.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Sanemori, H., Egi, Y. and Kawasaki, T. Pathway of thiamine pyrophosphate synthesis in Micrococcus denitrificans. J. Bacteriol. 126 (1976) 1030–1036. [PMID: 181359]
2.  Komeda, Y., Tanaka, M. and Nishimune, T. A th-1 mutant of Arabidopsis thaliana is defective for a thiamin-phosphate-synthesizing enzyme: thiamin phosphate pyrophosphorylase. Plant Physiol. 88 (1988) 248–250. [PMID: 16666289]
3.  Schweingruber, A.M., Dlugonski, J., Edenharter, E. and Schweingruber, M.E. Thiamine in Schizosaccharomyces pombe: dephosphorylation, intracellular pool, biosynthesis and transport. Curr. Genet. 19 (1991) 249–254. [PMID: 1868574]
4.  Muller, I.B., Bergmann, B., Groves, M.R., Couto, I., Amaral, L., Begley, T.P., Walter, R.D. and Wrenger, C. The vitamin B1 metabolism of Staphylococcus aureus is controlled at enzymatic and transcriptional levels. PLoS One 4:e7656 (2009). [PMID: 19888457]
5.  Kolos, I.K. and Makarchikov, A.F. [Identification of thiamine monophosphate hydrolyzing enzymes in chicken liver] Ukr Biochem J 86 (2014) 39–49. [PMID: 25816604] (in Russian)
6.  Mimura, M., Zallot, R., Niehaus, T.D., Hasnain, G., Gidda, S.K., Nguyen, T.N., Anderson, E.M., Mullen, R.T., Brown, G., Yakunin, A.F., de Crecy-Lagard, V., Gregory, J.F., 3rd, McCarty, D.R. and Hanson, A.D. Arabidopsis TH2 encodes the orphan enzyme thiamin monophosphate phosphatase. Plant Cell 28 (2016) 2683–2696. [PMID: 27677881]
[EC created 2016]

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