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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Gene Review: 

ACA9  -  calcium-transporting ATPase 9

Arabidopsis thaliana

Synonyms: ATACA9, AUTOINHIBITED CA(2+)-ATPASE, autoinhibited Ca(2+)-ATPase 9
 
 
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High impact information on ACA9

  • Complementation was observed by using a ACA9-yellow fluorescence protein (YFP) fusion that displayed plasma membrane localization [1].
  • Three independent T-DNA [portion of the Ti (tumor-inducing) plasmid that is transferred to plant cells] gene disruptions of ACA9 were found to result in partial male sterility [1].
  • Recent genetic studies based on a few transporters, including plasma membrane H+ pump AHA3, Ca2+ pump ACA9, and K+ channel SPIK, further support the expression patterns and the inferred functions revealed by our analyses [2].
  • However, Arabidopsis type IIB calcium pump isoforms ACA8, ACA9 and ACA10 form a separate outgroup and, based on the high molecular masses of the encoded proteins, are good candidates for plasma membrane bound Ca(2+)-ATPases [3].

References

  1. A plant plasma membrane Ca2+ pump is required for normal pollen tube growth and fertilization. Schiøtt, M., Romanowsky, S.M., Baekgaard, L., Jakobsen, M.K., Palmgren, M.G., Harper, J.F. Proc. Natl. Acad. Sci. U.S.A. (2004) [Pubmed]
  2. Integrating membrane transport with male gametophyte development and function through transcriptomics. Bock, K.W., Honys, D., Ward, J.M., Padmanaban, S., Nawrocki, E.P., Hirschi, K.D., Twell, D., Sze, H. Plant Physiol. (2006) [Pubmed]
  3. Molecular aspects of higher plant P-type Ca(2+)-ATPases. Geisler, M., Axelsen, K.B., Harper, J.F., Palmgren, M.G. Biochim. Biophys. Acta (2000) [Pubmed]
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