cytokinin oxidase 4 AT4G29740 CKX4 ATCKX4 cytokinin oxidase 4 (CKX4); FUNCTIONS IN: primary amine oxidase activity, cytokinin dehydrogenase activity; INVOLVED IN: cytokinin catabolic process; LOCATED IN: endomembrane system; EXPRESSED IN: 15 plant structures; EXPRESSED DURING: 9 growth stages; CONTAINS InterPro DOMAIN/s: Cytokinin dehydrogenase 1, FAD/cytokinin binding domain (InterPro:IPR015345), FAD-binding, type 2 (InterPro:IPR016166), FAD-linked oxidase-like, C-terminal (InterPro:IPR016164), FAD linked oxidase, N-terminal (InterPro:IPR006094); BEST Arabidopsis thaliana protein match is: cytokinin oxidase 2 (TAIR:AT2G19500.1); Has 4206 Blast hits to 4200 proteins in 818 species: Archae - 66; Bacteria - 2585; Metazoa - 17; Fungi - 1008; Plants - 323; Viruses - 0; Other Eukaryotes - 207 (source: NCBI BLink).