Gene Symbol: TOPP4
Description: type one serine/threonine protein phosphatase 4
Alias: type one serine/threonine protein phosphatase 4, type one serine/threonine protein phosphatase 4
Species: thale cress
Takemiya A, Ariyoshi C, Shimazaki K. Identification and functional characterization of inhibitor-3, a regulatory subunit of protein phosphatase 1 in plants. Plant Physiol. 2009;150:144-56 pubmed publisher
..These results define Inh3 as a regulatory subunit of PP1 in plants and suggest that Inh3 plays a crucial role in early embryogenesis in Arabidopsis...
Templeton G, Nimick M, Morrice N, Campbell D, Goudreault M, Gingras A, et al
. Identification and characterization of AtI-2, an Arabidopsis homologue of an ancient protein phosphatase 1 (PP1) regulatory subunit. Biochem J. 2011;435:73-83 pubmed publisher
..TAP (tandem affinity purification)-tag experiments with plant I-2 showed in vivo association with several Arabidopsis PP1 isoforms and identified other potential I-2 binding proteins. ..
Takemiya A, Yamauchi S, Yano T, Ariyoshi C, Shimazaki K. Identification of a regulatory subunit of protein phosphatase 1 which mediates blue light signaling for stomatal opening. Plant Cell Physiol. 2013;54:24-35 pubmed publisher
..PRSL1 did not affect the catalytic activity of Arabidopsis PP1c but it stimulated the localization of PP1c in the cytoplasm. We conclude that PRSL1 functions as a regulatory subunit of PP1 and regulates blue light signaling in stomata. ..
Qin Q, Wang W, Guo X, Yue J, Huang Y, Xu X, et al
. Arabidopsis DELLA protein degradation is controlled by a type-one protein phosphatase, TOPP4. PLoS Genet. 2014;10:e1004464 pubmed publisher
..We have identified a dwarfed dominant-negative Arabidopsis mutant, named topp4-1. Reduced expression of TOPP4 using an artificial microRNA strategy also resulted in a dwarfed phenotype...
Yue J, Qin Q, Meng S, Jing H, Gou X, Li J, et al
. TOPP4 Regulates the Stability of PHYTOCHROME INTERACTING FACTOR5 during Photomorphogenesis in Arabidopsis. Plant Physiol. 2016;170:1381-97 pubmed publisher
..In this study, we identified a type 1 protein phosphatase, TOPP4, that is essential for PIF5 protein stability in Arabidopsis (Arabidopsis thaliana)...
Smith R, Walker J. Expression of multiple type 1 phosphoprotein phosphatases in Arabidopsis thaliana. Plant Mol Biol. 1993;21:307-16 pubmed
..In this study, we report the isolation of five distinct Arabidopsis cDNA clones (TOPP1, TOPP2, TOPP3, TOPP4 and TOPP5) which encode the catalytic subunit (PP1c) of type 1 protein phosphatases...
Guo X, Qin Q, Yan J, Niu Y, Huang B, Guan L, et al
. TYPE-ONE PROTEIN PHOSPHATASE4 regulates pavement cell interdigitation by modulating PIN-FORMED1 polarity and trafficking in Arabidopsis. Plant Physiol. 2015;167:1058-75 pubmed publisher
..Here, we show that a type-one protein phosphatase, TOPP4, is essential for the formation of interdigitated pavement cell (PC) pattern in Arabidopsis (Arabidopsis thaliana) ..