SHD — Asparagus officinalis

Summary

AoSHD (A4U43_C04F8030) on asparagus chromosome 4 encodes a heat shock protein 90 (HSP90) family member, characterized by Hsp90, HATPase_C and Hsp90_fam domains. The product is annotated with ATP-dependent protein folding chaperone activity and has been associated with diverse molecular functions including DNA polymerase activity, transcription regulator activity, and telomeric repeat binding. AoSHD is linked to numerous biological processes such as cellular response to unfolded protein, response to brassinosteroid stimulus, double-strand break repair, and negative regulation of cellulose anabolism. It localizes to the chloroplast outer membrane, ER lumen, and plasma membrane periphery. The gene has been connected to agronomically relevant traits including seed set percent, submergence tolerance, bacterial and viral disease response, temperature stress response, floral organ morphology, and photoperiod-sensitive flowering time. Studies of related genes in other species link the family to thermotolerance, broad-spectrum disease resistance, salinity tolerance, and chloroplast function.