CBL1 — Oryza sativa Japonica

Summary

OsCBL1 (OS05G0534400) on rice chromosome 5 encodes a calcineurin B-like protein with EF-hand calcium-binding domains and annotated calcium ion sensor activity, along with methylthioadenosine nucleosidase activity, ATPase inhibitor activity, and protein kinase regulator activity. In rice, OsCBL1 is associated with phosphorus, nitrogen, nitrate, phosphate, and calcium responses, as well as seedling traits. The related gene CBL8 is linked to drought stress response, salt tolerance, temperature stress, grain and panicle traits, and growth. OsCBL1 is also associated with raffinose anabolism, monoatomic ion homeostasis, regulation of K+ transport, cellular response to nitrogen levels, and hypotonic salinity response. It localizes to the nucleotide-activated protein kinase complex, aleurone grain membrane, root hair tip, and pollen tube. Related genes in other species are linked to salinity tolerance, potassium acquisition, cold tolerance, and photoperiodic flowering.