Rice OsHMA3 is a vacuolar cadmium (Cd) transporter belonging to the P 1B-ATPase family and has a long (273aa) C-terminal region. We analyzed the function of the region related to Cd using the transgenic Arabidopsis Col-0 ecotype, which is sensitive to Cd. The OsHMA3 variant containing a truncated (58aa) C-terminal region did not confer Cd tolerance, whereas an OsHMA3 variant containing a longer truncated (105aa) C-terminal region conferred Cd tolerance to transgenic Arabidopsis. We conclude that the C-terminal region, particularly the region containing the first 105aa, has an important role in OsHMA3 activity. © 2014 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
CITATION STYLE
Kumagai, S., Suzuki, T., Tezuka, K., Satoh-Nagasawa, N., Takahashi, H., Sakurai, K., … Akagi, H. (2014). Functional analysis of the C-terminal region of the vacuolar cadmium-transporting rice OsHMA3. FEBS Letters, 588(5), 789–794. https://doi.org/10.1016/j.febslet.2014.01.037
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