ALAAT1 — Daucus carota subsp. sativus
Summary
DCAR_016090 (symbol ALAAT1, DcALAAT1) on carrot chromosome 5 encodes a pyridoxal phosphate-dependent aminotransferase of the ALAT1/2-like family, with alanine transaminase (EC 2.6.1.2), nicotianamine aminotransferase, and 1-aminocyclopropane-1-carboxylate synthase activities. The gene is associated with L-alanine and tyrosine breakdown, ethylene anabolism, amino acid metabolism, and responses to cadmium and hypoxia. It has been linked to hypoxia tolerance and recovery, nitrogen metabolism and utilization, and fruit ripening. The encoded protein localizes to the amyloplast membrane, mitochondria, and nucleus. Studies of related genes in other species connect the family to pathogen resistance, lateral root length, and impaired starch degradation under hypoxia, though these associations are not yet established in carrot.
Annotations
- Chromosome
- 5
- Related genes
- ALAAT1, ALAAT2, AlaAT1
- GO terms
- L-alanine breakdown, L-tyrosine-2-oxoglutarate transaminase activity, L-alanine:2-oxoglutarate Transaminase Activity, Pyridoxal Phosphate Binding, 1-aminocyclopropane-1-carboxylate Synthase Activity, Fruit Ripening, response to cadmium, Amino Acid Metabolic Process
- Publications
- 25830496, 17595195, 16033780, 16336779, 31488841, 17163439, 16547123, 28441590
- Traits
- other miscellaneous trait, Reduced Growth on Low-Nitrogen Media with Alanine, Reduced Growth on Alanine Media, Abnormal Alanine Metabolism During Hypoxia, Retarded Growth, Impaired Starch Degradation, Mean(TLRL) ABA, clim-aet11, hypoxia recovery, nitrogen metabolism