4rj9

Structural highlights

Function

[GAP1_ORYSJ] Mediates the transient calcium-dependent interaction of PYR/PYL/RCAR abscisic acid (ABA) receptors with the plasma membrane and thus regulates ABA sensitivity (By similarity). Stimulates the GTPase/ATPase activities of YchF1, and regulates its subcellular localization. Promotes tolerance towards salinity stress by limiting the accumulation of reactive oxygen species (ROS) (PubMed:19086295, PubMed:23550829). Promotes resistance to bacterial pathogens (e.g. Xanthomonas oryzae pv. oryzae and P. syringae pv. tomato DC3000) (PubMed:19086295).[UniProtKB:Q9LVH4]^{[1] [2]}

References

1. ↑ Cheung MY, Zeng NY, Tong SW, Li WY, Xue Y, Zhao KJ, Wang C, Zhang Q, Fu Y, Sun Z, Sun SS, Lam HM. Constitutive expression of a rice GTPase-activating protein induces defense responses. New Phytol. 2008 Jul;179(2):530-45. PMID:19086295
2. ↑ Cheung MY, Li MW, Yung YL, Wen CQ, Lam HM. The unconventional P-loop NTPase OsYchF1 and its regulator OsGAP1 play opposite roles in salinity stress tolerance. Plant Cell Environ. 2013 Nov;36(11):2008-20. doi: 10.1111/pce.12108. Epub 2013, Apr 25. PMID:23550829 doi:http://dx.doi.org/10.1111/pce.12108