AT1G04400 — Arabidopsis thaliana

Summary

AT1G04400 (CRY2, also known as FHA) encodes a protein with cryptochrome and is annotated with blue light photoreceptor activity, DNA (6-4) photolyase activity, and histone kinase activity. CRY2 is associated with phototransduction, circadian behavior, thermomorphogenesis, magnetoception, and regulation of DNA recombination and mRNA metabolism. It localizes to chloroplast nucleoids, nuclear bodies, and SCF complexes, and participates in pathways including activation of CRY, formation of the COP1:SPA1 complex, and drought escape via ABA-dependent signaling. The gene is linked to numerous agronomic traits such as photoperiod sensitivity, leaf chlorophyll content, stem number, flower diameter, fruit growth, cell elongation, and responses to blue, red, and far-red light. Related genes in other species are linked to fruit antioxidant content, high-intensity light resistance, resistance to Pseudomonas syringae, and grain yield.