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https://www.selleckchem.com/products/BafilomycinA1.html ClpB disaggregase, in particular, ClpB3 from A. thaliana. ClpB3 was produced recombinantly in Escherichia coli and affinity-purified to near homogeneity. ClpB3 forms a hexameric complex in the presence of MgATP and displays intrinsic ATPase activity. We demonstrate that ClpB3 has ATPase activity in a wide range of pH and temperature values and is particularly resistant to heat. ClpB3 specifically targets unstructured polypeptides and mediates the reactivation of heat-denatured model substrates without the aid of the Hsp70 system. Overall, this work represents the first in-depth biochemical description of a ClpB protein from plants and strongly supports its role as the putative disaggregase chaperone in chloroplasts. Enhanced bioactive JA (JA-Ile) accumulation in OsJAZ9 overexpressing rice helps plantstolerate K deficiency. Potassium (K) represents up to 10% of the plant's total dry biomass, and its deficiency makes plants highly susceptible to both abiotic and biotic stresses. K shortage results in the inhibition of root and shoots growth, but the underlying mechanism of this response is unclear. Our RNA-Seq and qPCR analysis suggested leading roles for JA pathway genes under K deficiency in rice. Notably, K deficiency and JA application produced similar phenotypic and transcriptional responses. Here, we integrated molecular, physiological and morphological studies to analyze the role of OsJAZ9 in JA homeostasis and K deficiency responses. We raised OsJAZ9 over-expression, knockdown, transcriptional reporter, translational reporter and C-terminal deleted translational reporter lines in rice to establish the role of JA signaling in K ion homeostasis. JA profiling revealed significantly increased JA-Ile levels in OsJAZ9 l studies to analyze the role of OsJAZ9 in JA homeostasis and K deficiency responses. We raised OsJAZ9 over-expression, knockdown, transcriptional reporter, translational reporter and C-terminal d

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