CAM1 — Sorghum bicolor

Summary

SORBI_3001G032000 (SbCAM1) on sorghum chromosome 1 encodes an uncharacterized protein with PTR2 symporter and POT family domains, belonging to the major facilitator superfamily. The gene is annotated for vitamin Bt transporter activity, S-nitrosoglutathione reductase activity, and carbohydrate transmembrane transporter activity. SbCAM1 is associated with cellular responses to cold, salinity, and drought, as well as leaf senescence, seed development, heat acclimation, and programmed cell death. It has been linked to traits including iron sensitivity, shoot branching, stem elongation, stomatal opening, flowering time, disease tolerance, and photosynthetic rate. Localization evidence connects the product to the tonoplast, chloroplast envelope, plastid, mitochondria, and chromatin. Studies of related genes in other species link the family to salt, drought, and cold stress tolerance, root development, and formaldehyde detoxification.