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EC 1.4.1.24 Details
EC number
1.4.1.24
Accepted name
3-dehydroquinate synthase II
Reaction
2-amino-3,7-dideoxy-D-threo-hept-6-ulosonate + H2O + NAD+ = 3-dehydroquinate + NH3 + NADH + H+
Other name(s)
DHQ synthase II, MJ1249 (gene name), aroB&prime, (gene name)
Systematic name
2-amino-3,7-dideoxy-D-threo-hept-6-ulosonate:NAD+ oxidoreductase (deaminating)
Comment
The enzyme, which was isolated from the archaeon Methanocaldococcus jannaschii, plays a key role in an alternative pathway for the biosynthesis of 3-dehydroquinate (DHQ), an intermediate of the canonical pathway for the biosynthesis of aromatic amino acids. The enzyme catalyses a two-step reaction - an oxidative deamination, followed by cyclization.
History
created 2012
EC Tree
1.4.1.6 created 1961, deleted 1982