Abscizinski-aldehid oksidaza
(Preusmjereno sa stranice AAO3)
Abscizinski-aldehid oksidaza | |||||||||
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Identifikatori | |||||||||
EC broj | 1.2.3.14 | ||||||||
CAS broj | 129204-36-0 | ||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB | RCSB PDB PDBe PDBj PDBsum | ||||||||
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Abscizinski-aldehid oksidaza (EC 1.2.3.14, abscisinska aldehidna oksidaza, AAO3, AOd, AOdelta) je enzim sa sistematskim imenom abscisinski-aldehid:kiseonik oksidoreduktaza.[1][2][3] Ovaj enzim katalizuje sledeću hemijsku reakciju:
- abscisinski aldehid +H2O + O2 abscisat +H2O2
Ovaj enzim deluje na (+)- i (-)-abscisinski aldehid. On učestvuje u biosintezi abscisinske-kiseline kod biljki, zajedno sa EC 1.1.1.288, (ksantoksin dehidrogenazom), EC 1.13.11.51 (9-cis-epoksikarotenoid dioksigenazom) i EC 1.14.13.93 ((+)-abscisinski kiselina 8'-hidroksilazom). Dok je abscisinski aldehid najbolji supstrat, ovaj enzim takođe deluje na indol-3-aldehid, 1-naftaldehid i benzaldehid kao supstrate, mada malom brzinom.
- ↑ Sagi, M., Fluhr, R. and Lips, S.H. (1999). „Aldehyde oxidase and xanthin dehydrogenase in a flacca tomato mutant with deficient abscisic acid and wilty phenotype”. Plant Physiol. 120: 571-577. PMID 10364409.
- ↑ Seo, M., Peeters, A.J., Koiwai, H., Oritani, T., Marion-Poll, A., Zeevaart, J.A., Koornneef, M., Kamiya, Y. and Koshiba, T. (2000). „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. PMID 11050171.
- ↑ Seo, M., Koiwai, H., Akaba, S., Komano, T., Oritani, T., Kamiya, Y. and Koshiba, T. (2000). „Abscisic aldehyde oxidase in leaves of Arabidopsis thaliana”. Plant J. 23: 481-488. PMID 10972874.
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