HSP21 — Daucus carota subsp. sativus

Summary

DCAR_021555, also known as DcHSP21, encodes a small heat shock protein (SHSP) domain-containing protein on carrot chromosome 6. The product belongs to the HSP20-like chaperone family and is annotated with unfolded protein binding (GO:0051082). This gene is associated with responses to heat, hydrogen peroxide, stress, hypoxia, and salinity, as well as protein folding, protein oligomerization, fermentation, homologous recombination, translation elongation, cell growth, and the HOG response. It localizes to the cytosol and cytoplasm. DcHSP21 is associated with thermotolerance, heat stress response, embryogenesis, and photosynthetic rate. Studies of related genes in other species connect the family to salt and drought tolerance, acquired thermotolerance, high-temperature stress tolerance, and traits including seed longevity, fruit color, proline and sugar content, seed maturation, abscisic acid sensitivity, and root morphology.