IntEnz

EC 1.2.3.14 - Abscisic-aldehyde oxidase

IntEnz Enzyme Nomenclature
EC 1.2.3.14

Names

Reaction

• 20529 [IUBMB]
  2-cis-(+)-abscisic aldehyde

  2-cis-(+)-abscisic aldehyde

  Name origin: UniProt - CHECKED (C)

  CHEBI:31157

  Formula: C15H20O3
  Charge: 0

  ChEBI compound status: CHECKED (C)

  

  +

  H₂O

  H2O

  Name origin: UniProt - CHECKED (C)

  CHEBI:15377

  Formula: H2O
  Charge: 0

  ChEBI compound status: CHECKED (C)

  

  +

  O₂

  O2

  Name origin: UniProt - CHECKED (C)

  CHEBI:15379

  Formula: O2
  Charge: 0

  ChEBI compound status: CHECKED (C)

  

  =

  2-cis-(+)-abscisate

  2-cis-(+)-abscisate

  Name origin: UniProt - CHECKED (C)

  CHEBI:37569

  Formula: C15H19O4
  Charge: -1

  ChEBI compound status: CHECKED (C)

  

  +

  H⁺

  H(+)

  Name origin: UniProt - CHECKED (C)

  CHEBI:15378

  Formula: H
  Charge: 1

  ChEBI compound status: CHECKED (C)

  

  +

  H₂O₂

  H2O2

  Name origin: UniProt - CHECKED (C)

  CHEBI:16240

  Formula: H2O2
  Charge: 0

  ChEBI compound status: CHECKED (C)

  

Comments:

Acts on both (+)- and (−)-abscisic aldehyde. Involved in the abscisic-acid biosynthesis pathway in plants, along with EC 1.1.1.288, (xanthoxin dehydrogenase), EC 1.13.11.51 (9-cis-epoxycarotenoid dioxygenase) and EC 1.14.13.93 [(+)-abscisic acid 8'-hydroxylase]. While abscisic aldehyde is the best substrate, the enzyme also acts with indole-3-aldehyde, 1-naphthaldehyde and benzaldehyde as substrates, but more slowly [3].

Links to other databases

References

1. Sagi, M., Fluhr, R. and Lips, S.H.
   Aldehyde oxidase and xanthin dehydrogenase in a flacca tomato mutant with deficient abscisic acid and wilty phenotype.
   Plant Physiol. 120 : 571-578 (1999). [PMID: 10364409]
2. Seo, M., Peeters, A.J., Koiwai, H., Oritani, T., Marion-Poll, A., Zeevaart, J.A., Koornneef, M., Kamiya, Y. and Koshiba, T.
   The Arabidopsis aldehyde oxidase 3 (AAO3) gene product catalyzes the final step in abscisic acid biosynthesis in leaves.
   Proc. Natl. Acad. Sci. USA 97 : 12908-12913 (2000). [PMID: 11050171]
3. Seo, M., Koiwai, H., Akaba, S., Komano, T., Oritani, T., Kamiya, Y. and Koshiba, T.
   Abscisic aldehyde oxidase in leaves of Arabidopsis thaliana.
   Plant J. 23 : 481-488 (2000). [PMID: 10972874]

[EC 1.2.3.14 created 2005]