PYK — Phaseolus vulgaris

Summary

PHAVU_003G114500, symbol PYK (PvPYK), encodes a protein with Huntingtin-interacting K (HINT-K) and HYPK_UBA domains, placing it in the NAC-like UBA protein family. In French bean (Phaseolus vulgaris) on chromosome 3, this gene is associated with disaccharide transport, sucrose metabolism, fermentation, protein stabilization, upregulation of protein ubiquitination, cell growth, embryo development ending in seed dormancy, salinity response, and response to thirst. It is linked to biomass yield, plant embryo development, and phenotypes including suspensor development, embryo development, endosperm cellularization, globular-stage embryo defects, dwarf curled leaves with enhanced immunity, and embryogenesis. The protein localizes to the NatA complex, plasmodesmata, mitochondria, cytosol, and nucleus. Studies of related genes in other species connect the family to drought tolerance and thermotolerance.