EC 1 - Oxidoreductases
EC 1.1 - Acting on the CH-OH group of donors
EC 1.1.1 - With NAD+ or NADP+ as acceptor
EC 1.1.1.282 - Quinate/shikimate dehydrogenase [NAD(P)+]
IntEnz view
ENZYME view
IntEnz Enzyme Nomenclature
EC 1.1.1.282
Names
Accepted name:
quinate/shikimate dehydrogenase [NAD(P)+]
Other
names:
YdiB
quinate/shikimate dehydrogenase [ambiguous]
quinate/shikimate dehydrogenase [ambiguous]
Systematic name:
L-quinate:NAD(P)+ 3-oxidoreductase
Reactions
- (1) L-quinate + NAD(P)+ = 3-dehydroquinate + NAD(P)H + H+
- (2) shikimate + NAD(P)+ = 3-dehydroshikimate + NAD(P)H + H+
Comments:
This is the second shikimate dehydrogenase enzyme found in Escherichia coli. It can use both quinate and shikimate as substrates and either NAD+ or NADP+ as acceptor. The low catalytic efficiency with both quinate and shikimate suggests that neither may be the physiological substrate. cf. EC 1.1.1.24, quinate/shikimate dehydrogenase (NAD+), EC 1.1.5.8, quinate/shikimate dehydrogenase (quinone), and EC 1.1.1.25, shikimate dehydrogenase (NADP+).
Links to other databases
References
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Structures of shikimate dehydrogenase AroE and its paralog YdiB. A common structural framework for different activities.J. Biol. Chem. 278 : 19463-19472 (2003). [PMID: 12637497]
-
The 2.3-Å crystal structure of the shikimate 5-dehydrogenase orthologue YdiB from Escherichia coli suggests a novel catalytic environment for an NAD-dependent dehydrogenase.J. Biol. Chem. 278 : 19176-19182 (2003). [PMID: 12624088]
[EC 1.1.1.282 created 2004]