Summary of Study ST003190

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR001986. The data can be accessed directly via it's Project DOI: 10.21228/M81142 This work is supported by NIH grant, U2C- DK119886.

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This study contains a large results data set and is not available in the mwTab file. It is only available for download via FTP as data file(s) here.

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Study IDST003190
Study TitleA clade of receptor-like cytoplasmic kinases and 14-3-3 proteins coordinate the inositol hexaphosphate accumulation
Study SummaryInositol hexaphosphate (InsP6) is the major storage form of phosphorus in seeds. Reducing seed InsP6 content is a breeding objective in agriculture, as InsP6 negatively impacts animal nutrition and the environment. Nevertheless, how InsP6 accumulation is regulated remains largely unknown. Here, we identify a clade of receptor-like cytoplasmic kinases (RLCKs), named Inositol Polyphosphate-related Cytoplasmic Kinases 1-6 (IPCK1-IPCK6), deeply involved in InsP6 accumulation. The InsP6 concentration is dramatically reduced in seeds of ipck quadruple (T-4m/C-4m) and quintuple (C-5m) mutants, accompanied with the obviously increase of phosphate (Pi) concentration. The plasma membrane-localized IPCKs recruit IPK1 involved in InsP6 synthesis, and facilitate its binding and activity via phosphorylation of GRF 14-3-3 proteins. IPCKs also recruit IPK2s and PI-PLCs required for InsP4/InsP5 and InsP3 biosynthesis respectively, to form a potential IPCK-GRF-PLC-IPK2-IPK1 complex. Our findings therefore uncover a previously uncharacterized regulatory mechanism of InsP6 accumulation governed by IPCKs, shedding new light on the mechanisms of InsP biosynthesis in eukaryotes.
Institute
Zhejiang University
Last NameXU
First NameLILIN
Addresszhejiang university
Email1164702127@qq.com
Phone18667919279
Submit Date2024-04-28
Raw Data AvailableYes
Raw Data File Type(s).xml
Analysis Type DetailOther
Release Date2024-05-08
Release Version1
LILIN XU LILIN XU
https://dx.doi.org/10.21228/M81142
ftp://www.metabolomicsworkbench.org/Studies/ application/zip

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Factors:

Subject type: Plant; Subject species: Arabidopsis thaliana (Factor headings shown in green)

mb_sample_id local_sample_id Sample source Treatment
SA347864WT-IP5-Fig2fPlant Seed Control
SA347865WT-IP3-FigS2bPlant Seed Control
SA347866WT-IP8-FigS2bPlant Seed Control
SA347867WT-IP6-Fig2fPlant Seed Control
SA347868WT-IP7-FigS2bPlant Seed Control
SA347869WT-IP4-FigS2bPlant Seed Control
SA347870WT-IP5-FigS2bPlant Seed Control
SA347871WT-IP6-FigS2bPlant Seed Control
SA347872C-5m-2-IP7-FigS2bPlant Seed mutant
SA347873C-5m-2-IP6-FigS2bPlant Seed mutant
SA347874C-5m-2-IP5-FigS2bPlant Seed mutant
SA347875C-5m-2-IP5-Fig2fPlant Seed mutant
SA347876C-5m-2-IP4-FigS2bPlant Seed mutant
SA347877C-5m-2-IP6-Fig2fPlant Seed mutant
SA347878C-5m-2-IP8-FigS2bPlant Seed mutant
SA347879C-5m-1-IP7-FigS2bPlant Seed mutant
SA347880C-5m-1-IP5-FigS2bPlant Seed mutant
SA347881C-5m-1-IP4-FigS2bPlant Seed mutant
SA347882C-5m-1-IP3-FigS2bPlant Seed mutant
SA347883C-5m-1-IP6-FigS2bPlant Seed mutant
SA347884C-5m-1-IP8-FigS2bPlant Seed mutant
SA347885C-5m-1-IP6-Fig2fPlant Seed mutant
SA347886C-5m-1-IP5-Fig2fPlant Seed mutant
SA347887C-5m-2-IP3-FigS2bPlant Seed mutant
Showing results 1 to 24 of 24
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