CKX5 — Triticum aestivum

Summary

TaCKX5 (TRAESCS3B02G344600) on bread wheat chromosome 3B encodes a cytokinin dehydrogenase (EC 1.5.99.12) with cytokinin dehydrogenase activity and FAD binding, placing it in the cytokinin dehydrogenase family. The gene is associated with cytokinin breakdown, metabolism, and signaling, as well as inflorescence development, and numerous other processes including vitamin, sulfur compound, and lipid metabolism. TaCKX5 is associated with tillering and tiller number in wheat, and its product localizes to the extracellular region, cytosol, and nucleus. Studies of related genes in other species connect the family to cytokinin regulation, but these associations are not yet established for TaCKX5 itself.