Description : (at4g34890 : 982.0) Encodes a xanthine dehydrogenase, involved in purine catabolism. Ubiquitously expressed, but the transcript level is altered during aging, senescence, salt and cold stress, ABA treatment, and dark treatment. RNAi lines that suppress both XDH1 and XDH2 produce small plants with reduced fertility and accelerated leaf senescence. Role in drought tolerance.; xanthine dehydrogenase 1 (XDH1); CONTAINS InterPro DOMAIN/s: Aldehyde oxidase/xanthine dehydrogenase (InterPro:IPR016208), Ferredoxin (InterPro:IPR001041), Molybdopterin dehydrogenase, FAD-binding (InterPro:IPR002346), [2Fe-2S]-binding (InterPro:IPR002888), FAD-binding, type 2, subdomain 1 (InterPro:IPR016167), FAD-binding, type 2 (InterPro:IPR016166), CO dehydrogenase flavoprotein, C-terminal (InterPro:IPR005107), 2Fe-2S ferredoxin, iron-sulphur binding site (InterPro:IPR006058), CO dehydrogenase flavoprotein-like, FAD-binding, subdomain 2 (InterPro:IPR016169), Aldehyde oxidase/xanthine dehydrogenase, a/b hammerhead (InterPro:IPR000674), Aldehyde oxidase/xanthine dehydrogenase, molybdopterin binding (InterPro:IPR008274); BEST Arabidopsis thaliana protein match is: xanthine dehydrogenase 2 (TAIR:AT4G34900.1); Has 21952 Blast hits to 20911 proteins in 1336 species: Archae - 451; Bacteria - 13165; Metazoa - 1072; Fungi - 101; Plants - 265; Viruses - 0; Other Eukaryotes - 6898 (source: NCBI BLink). & (q7xh05|aldo1_orysa : 523.0) Probable aldehyde oxidase 1 (EC 1.2.3.1) (AO-1) - Oryza sativa (Rice) & (reliability: 1964.0) & (original description: no original description)
Condition specificity: 11 h after dark (SPM: 0.45, entropy: 2.75, tau: 0.46)