4.2.3.154: demethyl-4-deoxygadusol synthase

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For detailed information about demethyl-4-deoxygadusol synthase, go to the full flat file.

Reaction

Synonyms

Ava_3858, DDGS, desmethyl-4-deoxygadusol synthase, Npun_5600

ECTree

4 Lyases

4.2 Carbon-oxygen lyases

4.2.3 Acting on phosphates

4.2.3.154 demethyl-4-deoxygadusol synthase

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Results	in table
2	Activating Compound
2	AA Sequence
2	Cloned(Commentary)
1	Cofactor
3	General Information
2	kcat/KM [mM/s]
2	KM Value [mM]
3	Natural Substrates/ Products (Substrates)
3	Organism
1	Pathway
2	pH Optimum
2	Purification (Commentary)
1	Reaction
3	Reference
6	Substrates and Products (Substrate)
6	Synonyms
1	Systematic Name
2	Temperature Optimum [°C]
2	Turnover Number [1/s]

Systematic Name

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Systematic Name on EC 4.2.3.154 - demethyl-4-deoxygadusol synthase

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D-sedoheptulose-7-phosphate phosphate-lyase (cyclizing; demethyl-4-deoxygadusol-forming)

The enzyme, characterized from the cyanobacterium Nostoc punctiforme PCC 73102, is involved in the biosynthesis of the sunscreen compound shinorine. It requires a divalent metal ion (Zn2+ or Co2+) and an NAD+ cofactor, which is transiently reduced during the reaction. cf. EC 4.2.3.152, 2-epi-5-epi-valiolone synthase and EC 4.2.3.155, 2-epi-valiolone synthase.