SHD — Nicotiana attenuata

Summary

A4A49_60946 (SHD, NaSHD) on coyote tobacco chromosome 9 encodes a heat shock protein 90 family member with ATP-dependent protein folding chaperone activity and multiple annotated molecular functions including DNA polymerase, transcription regulator, and pectate lyase activities. The gene is associated with diverse biological processes such as viral translation, cellular response to unfolded protein, double-strand break repair, respiratory burst in defense response, and long-chain fatty acid metabolism. It localizes to the chloroplast outer membrane, ER lumen, Tic complex, and cell periphery. NaSHD is associated with floral organ morphology, seed set percent, bacterial and viral disease response, submergence tolerance, temperature stress response, aphid response, reproductive growth time, and starch grain synthesis. Related genes in other species are linked to thermotolerance, broad-spectrum disease resistance, salinity tolerance, and chloroplast envelope maintenance.