AT4G38130 — Arabidopsis thaliana

Summary

AT4G38130 (HD1, also known as AtHDA19) encodes a histone deacetylase with NAD-independent activity, belonging to the HDAC_I/II family. The encoded protein possesses histone deacetylase binding, chromatin binding, and transcription corepressor activity. In Arabidopsis, HD1 is associated with histone deacetylation, plant development, inflorescence meristem identity, floral development, root epidermal cell length, and salinity tolerance. The gene is linked to numerous biological processes including regulation of seed maturation, fruit abscission, floral organ abscission, and responses to biotic stimuli. It localizes to HDAC complexes, the PRC2 complex, and the nucleolus. HD1 has been connected to diverse traits such as tiller angle, floral organ length, seed volume, drought sensitivity, potassium content, branch angle, leaf morphology, and brassinosteroid content. Studies of related genes in other species link the family to meiotic recombination, disease tolerance, and soluble sugar content.