CASP1 — Sorghum bicolor

Summary

SORBI_3006G106900, designated SbCASP1, encodes a CASP-like (CASPL) family protein with a conserved CASP domain and protein homodimerization and protein binding activities. The gene is associated with Casparian strip assembly and cell-cell junction assembly, consistent with its localization to the Casparian strip and plasma membrane. SbCASP1 is also linked to cell wall modification and organization, proteolysis, regulation of protein stability, and response to salt stress. Associations with root length and salt tolerance (SALTTL) have been noted, and Casparian strip formation has been observed for this gene. Related genes in other species link the family to root elongation, lateral root development, lignin deposition, calcium homeostasis, and growth under stress, as well as to membrane-related processes.