The Enzyme Database

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Accepted name: futalosine hydrolase
Reaction: futalosine + H2O = dehypoxanthine futalosine + hypoxanthine
For diagram of the futalosine pathway, click here
Glossary: futalosine = 3-(3-((3S,4R)-3,4-dihydroxy-5-(6-oxo-3H-purin-9(6H)-yl)tetrahydrofuran-2-yl)propanoyl)benzoate
dehypoxanthine futalosine = 7-(3-carboxyphenyl)-D-ribo-7-dehydro-5,6-dideoxyheptose
Other name(s): futalosine nucleosidase; MqnB (ambiguous)
Systematic name: futalosine ribohydrolase
Comments: This enzyme, which is specific for futalosine, catalyses the second step of a novel menaquinone biosynthetic pathway that is found in some prokaryotes.
Links to other databases: BRENDA, EXPASY, Gene, KEGG, MetaCyc
1.  Hiratsuka, T., Furihata, K., Ishikawa, J., Yamashita, H., Itoh, N., Seto, H. and Dairi, T. An alternative menaquinone biosynthetic pathway operating in microorganisms. Science 321 (2008) 1670–1673. [DOI] [PMID: 18801996]
[EC created 2008]

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