Carotenoid DB: CR00172

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Carotenoids DB: CR00172

Entry

CR00172

Classification

1. Oxidoreductions of C15 beta,- apocarotenoid
De-epoxidation and desaturation (epsilon end and keton forming)
Reaction center(s): C5,6, C3, and C4,5 in beta,- carotenoid

Name

xanthoxin oxidase

Definiton

Xanthoxin + NAD+ = Abscisic aldehyde + NADH + H+

Substrate

CA00867 Xanthoxin (9Z, 3-OH, 11-al, 5,6-Epoxy, 5,6+H, 11-apo, beta)

Product

CA00866 Abscisic aldehyde (9Z, 6-OH, 11-al, 3=O, 11-apo, epsilon)

Comment

Structure change

Chemical Fingerprint Changes

3-OH, 5,6-Epoxy, 5,6+H, beta -> 6-OH, 3=O, epsilon
( Help )

Chemical Fingerprint Changes
(improved)

3-OH(Up), 5,6-Epoxy(Down), 5,6+H, beta -> 6-OH(Down), 3=O, epsilon

Chemical Fingerprint Changes
(improved ver.2)

3-OH(Up), 5,6-Epoxy(Down), 5,6+H, beta(Down) -> 6-OH(Down), 3=O, epsilon

EC number

1.1.1.288

Protein Name

ABA2

Organism(s) in references

Medicago truncatula

Data sources/References

Ref.554 : Daniela S. Floss and Michael H. Walter, Plant Signaling & Behavior 4:3, 172-175; March 2009, "Role of carotenoid cleavage dioxygenase 1 (CCD1) in apocarotenoid biogenesis revisited"

Links to other DB

KEGG REACTION: R06954
KEGG ORTHOLOGY: K09841(ABA2)
KEGG ENZYME: 1.1.1.288
BRENDA: 1.1.1.288
IUBMB: 1.1.1.288

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