| Gene Symbol | AAO3 |
|---|---|
| Entrez Gene | 817257 |
| Alt Symbol | ABSCISIC ALDEHYDE OXIDASE 3, AOdelta, Aldehyde oxidase delta, Arabidopsis thaliana aldehyde oxidase 3, At-AO3, AtAAO3, F20F1.2, F20F1_2, abscisic aldehyde oxidase 3 |
| Species | Arabidopsis thaliana |
| Gene Type | protein-coding |
| Description | abscisic-aldehyde oxidase |
| Other Description | - |
| Swissprots | O64429 Q7GD73 Q7G9P4 Q9SLZ2 Q9SIG7 |
| Accessions | AAD22498 AEC07944 AEC07945 CAW36688 CAW39024 CAW41203 CAW47219 CAW63639 CAW71869 CAW80361 CAW82853 CAW86256 CAY36062 CAY38307 CBC02641 CBC04894 CBC06854 CBC12995 CBC45825 CBC62246 CBC79179 CBC84128 CBC89082 Q7G9P4 NM_001084497 NP_001077966 NM_128273 NP_180283 |
| Function | In higher plants aldehyde oxidases (AO) appear to be homo- and heterodimeric assemblies of AO subunits with probably different physiological functions. AO-delta seems to be involved in the last step of abscisic acid biosynthesis, at least in leaves and seeds. In vitro, AO-delta oxidizes abscisic aldehyde to abscisic acid (ABA). In vitro, AO-delta also uses indole-3- aldehyde (IAld), benzaldehyde, 1-naphthaldehyde and cinnamaldehyde as substrate; the AAO2-AAO3 dimer also uses abscisic aldehyde as substrate. {ECO:0000269|PubMed:10972874, ECO:0000269|PubMed:11050171, ECO:0000269|PubMed:15122034, ECO:0000269|PubMed:15574845, ECO:0000269|PubMed:16930325}. |
| Subcellular Location | Cytoplasm {ECO:0000305}. |
| Tissue Specificity | Expressed in vascular tissues of all organs, particularly in phloem companion cells and xylem parenchymatic cells. Highly expressed in roots and rosettes, and to lower extent in seedlings, stems and flowers. Expressed at very low levels in siliques and dry seeds. Also detected in root dividing cells (tips and primordia), in mesophyll cells and inside the guard cells. {ECO:0000269|PubMed:10972874, ECO:0000269|PubMed:11050171, ECO:0000269|PubMed:15064376, ECO:0000269|PubMed:15122034, ECO:0000269|PubMed:15574845, ECO:0000269|PubMed:9489015, ECO:0000269|PubMed:9615466}. |
| Top Pathways | Carotenoid biosynthesis |