AtPAP2, a Unique Member of the PAP Family, Functions in the Plasma Membrane

Genes
Qingqing SunHongbo Gao

Abstract

Purple acid phosphatases (PAPs) play various physiological roles in plants. AtPAP2 was previously shown to localize to both chloroplasts and mitochondria and to modulate carbon metabolism in Arabidopsis. Over-expression of AtPAP2 resulted in faster growth and increased biomass in several plant species, indicating its great potential for crop improvement of phosphate use and yield. Here, we studied the localization of AtPAP2 by transient expression in tobacco leaves. The results showed AtPAP2 was localized to the plasma membrane through the secretory pathway, which is different from previous studies. We also found that AtPAP2 had a close relationship with fungal PAP2-like proteins based on phylogenetic analysis. In addition, the C-terminal transmembrane domain conserved in land plants is unique among other AtPAPs except AtPAP9, which is a close homolog of AtPAP2. Taken together, our results provide information for further study of AtPAP2 in understanding its special function in crop improvement.

References

Oct 8, 1999·Archives of Biochemistry and Biophysics·G SchenkJ de Jersey
Sep 18, 2004·Plant Biology·P ZimmermannM Bucher
Sep 12, 2007·Bioinformatics·M A LarkinD G Higgins
May 17, 2011·Plant Physiology·Jianbo ShenFusuo Zhang
Jul 4, 2012·Plant Signaling & Behavior·Feng SunBoon Leong Lim
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Sep 10, 2013·Gene Expression Patterns : GEP·Katayoun ZamaniAmir Mousavi
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Aug 25, 2015·Frontiers in Plant Science·Sridhar RavichandranBalakrishnan Prithiviraj
Mar 24, 2016·Molecular Biology and Evolution·Sudhir KumarKoichiro Tamura

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Citations

Aug 18, 2021·Plant Cell Reports·Jyoti Bhadouria, Jitender Giri

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Methods Mentioned

BETA
PCR

Software Mentioned

TMHMM
MEGA
TMHMM Server
Adobe Photoshop CC
ClustalW2

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