Members of the HD-Zip II and III families are strictly linked to auxin machinery, helping adjust plant architecture (like leaf and root development).
These proteins originated in green algae and expanded through multiple duplication events to help plants adapt to terrestrial life. Links to Hormone Networks
These proteins act as specific transcription factors that coordinate plant growth, development, and environmental adaptation by linking directly to hormone signaling pathways. hormon.zip
Regulates responses to abiotic stress (drought, cold) and ABA signaling. Involved in light response and auxin-mediated development. HD-Zip III
Some HD-Zip genes are regulated by ethylene and methyl-jasmonic acid, signaling responses to biotic threats like insect herbivores. Functional Classification Members of the HD-Zip II and III families
The Arabidopsis genome contains , categorized into four distinct families based on their structure and function: Key Functions HD-Zip I
The highly conserved homeodomain binds to specific DNA sequences to regulate gene expression. Regulates responses to abiotic stress (drought, cold) and
While "hormon.zip" likely refers to the plant-specific HD-Zip proteins, the term generally describes chemical messengers that travel through the bloodstream to regulate vital processes in all living organisms. In humans, these include: