Primarily involved in epidermal cell differentiation and lipid metabolism.
HD-Zip proteins are unique to the plant kingdom and are characterized by a linked to a leucine zipper (LZ) motif. hormon.zip
HD-Zip proteins serve as "master switches" that integrate internal hormone signals with external environmental cues. hormon.zip
Members of the HD-Zip II and III families are strictly linked to auxin machinery, helping adjust plant architecture (like leaf and root development). hormon.zip
The highly conserved homeodomain binds to specific DNA sequences to regulate gene expression.
Critical for vascular development and apical meristem maintenance.
Some HD-Zip genes are regulated by ethylene and methyl-jasmonic acid, signaling responses to biotic threats like insect herbivores. Functional Classification