CYP — Daucus carota subsp. sativus

Summary

DCAR_003043 (CYP, DcCYP95) on carrot chromosome 1 encodes a cyclophilin-type peptidylprolyl isomerase (EC 5.2.1.8) with cyclosporin A binding, cis-trans proline isomerase activity, RNA folding chaperone activity, and mRNA, identical protein, and zinc binding. It is associated with protein folding, regulation of protein refolding, RNA splicing via the spliceosome, cold acclimation, response to salt, abscisic acid, mannitol, and cold, as well as carotenoid anabolism and polar cell growth. The gene is linked to leaf length, cell elongation, low temperature, oxidative stress, and salt tolerance traits, and to phenotypes including cell size, endoreplication, cell expansion, organ growth, impaired vacuolar transport, reduced seed coat mucilage, and drought, freezing, and salt stress tolerance. It localizes to the nucleus, cytosol, cytoplasm, plasmalemma, chloroplast stroma, mitochondria, and nuclear speck. Related genes in other species link the family to drought and freezing tolerance.