PHD2 — Brassica oleracea var. botrytis

Summary

BoPHD2 (PHD2) on cauliflower chromosome 3 encodes a histone reader with histone-binding and protein-binding activity, belonging to the AIPP2-like SPOC and PHD zinc-finger domain families. The protein localises to the nucleus and is associated with detection of hypoxia, negative regulation of transcription elongation by RNA polymerase II, epigenetic downregulation of gene expression, and regulation of photoperiodism and flowering. It has been linked to transcriptional repression. Studies of related genes in other species connect the family to early flowering under long-day conditions, dwarfism with small leaves and poor fertility, and photochemical quenching.