Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Identification of flg22-responsive BSU1 phosphorylation sites

ABSTRACT: To investigate flg22-induced posttranslational modification of BSU1 family proteins, we performed metabolic Stable Isotope Labeling In Arabidopsis followed by Immuno-Precipitation and Mass Spectrometry (SILIA IP-MS) analysis, with the isotopes switched in replicate experiments.

INSTRUMENT(S): LTQ Orbitrap Velos

ORGANISM(S): Arabidopsis Thaliana (mouse-ear Cress)

TISSUE(S): Plant Cell, Shoot

SUBMITTER: Shouling Xu

LAB HEAD: Shouling Xu

PROVIDER: PXD016283 | Pride | 2023-03-10

REPOSITORIES: Pride

ACCESS DATA

Json Xml

Publications

Deconvoluting signals downstream of growth and immune receptor kinases by phosphocodes of the BSU1 family phosphatases.

Park Chan Ho CH Bi Yang Y Youn Ji-Hyun JH Kim So-Hee SH Kim Jung-Gun JG Xu Nicole Y NY Shrestha Ruben R Burlingame Alma L AL Xu Shou-Ling SL Mudgett Mary Beth MB Kim Seong-Ki SK Kim Tae-Wuk TW Wang Zhi-Yong ZY

Nature plants 20220613 6

Hundreds of leucine-rich repeat receptor kinases (LRR-RKs) have evolved to control diverse processes of growth, development and immunity in plants, but the mechanisms that link LRR-RKs to distinct cellular responses are not understood. Here we show that two LRR-RKs, the brassinosteroid hormone receptor BRASSINOSTEROID INSENSITIVE 1 (BRI1) and the flagellin receptor FLAGELLIN SENSING 2 (FLS2), regulate downstream glycogen synthase kinase 3 (GSK3) and mitogen-activated protein (MAP) kinases, respe ...[more]

PMID: 35697730

Similar Datasets

SPY mediates O-fucose modification of hundreds of proteins and sugar-dependent growth in Arabidopsis_(Part 2: EtHCD)

Project description:The recent discovery of SPY-catalyzed protein O-fucosylation reveals a novel mechanism for regulating nucleocytoplasmic protein functions in plants. Genetic evidence indicates important roles of SPY in diverse developmental and physiological processes, however, the upstream signal controlling SPY activity and the downstream substrate proteins O-fucosylated by SPY remain largely unknown. Here, we demonstrate that SPY mediates sugar-dependent growth. We further identify hundreds of O-fucosylated proteins using lectin affinity chromatography followed by mass spectrometry. All the O-fucosylation events quantified in proteomic analyses are undetectable or decreased in the spy mutants and thus likely catalyzed by SPY. The O-fucosylome includes mostly nuclear and cytosolic proteins. Many O-fucosylated proteins function in essential cellular processes, hormone signaling, and developmental programs, consistent with the genetic functions of SPY. The O-fucosylome also includes many proteins modified by O-linked-N-acetylglucosamine (O-GlcNAc) and by phosphorylation downstream of the target of rapamycin (TOR) kinase, revealing the convergence of these nutrient signaling pathways on key regulatory functions such as post-transcriptional/translational regulation and hormonal responses. Our study identifies numerous targets of SPY/O-fucosylation and potential nodes of crosstalk among sugar/nutrient signaling pathways, enabling future dissection of the signaling network that mediates sugar regulation of plant growth and development.

2023-05-10 | PXD038491 | Pride

SPY mediates O-fucose modification of hundreds of proteins and sugar-dependent growth in Arabidopsis_(Part 1: HCD)

2023-05-10 | PXD038490 | Pride

Quantitative proteomic comparison between wild type Col and acinus-2 pinin-1 mutant using 15N metabolic labeling

Project description:ACINUS and PININ genes regulate transcription and alternative splicing (Bi et al., 2021) and we hypothesize that some proteins should have altered expression in the double mutant. Therefore, MS experiments were designed to identify these altered proteins on a global scale using 15N metabolic labeling.

2022-02-04 | PXD030081 | Pride

15N Stable-isotope-labeling in Arabidopsis (SILIA) quantitative MS analysis of the AtACINUS interactome

Project description:AtACINUS protein is involved in regulation of alternative transcription and splicing(AS). Identifying interaction partners and protein complex compositions for AtACINUS can produce valuable information on the mechanisms by which they regulate transcription and AS, as well as post-translational modifications on AtACINUS. A homozygous 35S::AtACINUS-GFP/acinus-2 plant was selected for similar protein expression level to the endogenous AtACINUS protein of wild-type plants using a native α-AtACINUS antibody. We isolated putative AtACINUS interaction partners from young Arabidopsis seedlings using the native α-AtACINUS antibody. Plants expressing TAP-GFP under 35S promoter were used as controls.

2020-12-02 | PXD020700 | Pride

Quantitative proteomic comparison between wild type Col and sec-5 mutant using 15N metabolic labeling

Project description:SECRET AGENT (SEC) is an O-GlcNAc transferase involved in O-GlcNAcylation of many proteins. However, sec-5 null allele mutant phenotype is very subtle. To examine if there are proteins that show altered expression in the sec-5 mutant compared to wild-type Col, we designed MS experiments to identify these candidates on a global scale using 15N metabolic labeling.

2022-02-04 | PXD030575 | Pride

Relative quantification of 15N labeled acinus-2 pinin-1 and 14N labeled Col through Data Dependent Acquisition to obtain peptide information for targeted Parallel Reaction Monitoring experiment

Project description:To examine the properties of 14N and 15N labeled peptides using Parallel Reaction Monitoring (PRM) on a high resolution, high accuracy mass spectrometer we first set up this DDA experiment. The purpose of this experiment was to choose peptides that are good candidates for targeted quantification. The retention times, mass, and charge from 42 candidate peptides were acquired for targeted quantification.

2022-06-09 | PXD030098 | Pride

Application of TurboID-mediated proximity labeling and phosphoproteomics for mapping a GSK3 kinase signaling network in Arabidopsis

Project description:Transient protein-protein interactions (PPIs), such as those between posttranslational modifying enzymes and their substrates, play key roles in cellular regulation, but are difficult to identify. Here we demonstrate the application of enzyme-catalyzed proximity labeling (PL), using the engineered promiscuous biotin ligase TurboID, as a sensitive method for characterizing PPIs in signaling networks. We show that TurboID fused with the GSK3-like kinase BIN2 or a PP2A phosphatase biotinylate their known substrate, the BZR1 transcription factor, with high specifically and efficiency. We optimized the protocol of biotin labeling and affinity purification in transgenic Arabidopsis expressing a BIN2-TurboID fusion protein. Subsequent quantitative mass spectrometry (MS) analysis identified about three hundred proteins biotinylated by BIN2-TurboID more efficiently than the YFP-TurboID control. These include a significant subset of previously proven BIN2 interactors and a large number of new BIN2 interactors that uncover a broad BIN2 signaling network. Our study illustrates that PL-MS using TurboID is a powerful tool for mapping signaling networks in plants, and reveals broad roles of this GSK3-like kinase in cellular signaling and regulation.

2023-05-10 | PXD017085 | Pride

Phylogenetic patterns in the microbial response to resource availability: amino acid incorporation in San Francisco Bay

Project description:Aquatic microorganisms are typically identified as either oligotrophic or copiotrophic, representing trophic strategies adapted to low or high nutrient concentrations, respectively. Here, we sought to take steps towards identifying these and additional adaptations to nutrient availability with a quantitative analysis of microbial resource use in mixed communities. We incubated an estuarine microbial community with stable isotope labeled amino acids (AAs) at concentrations spanning three orders of magnitude, followed by taxon-specific quantitation of isotopic incorporation using NanoSIMS analysis of high-density microarrays. The resulting data revealed that trophic response to AA availability falls along a continuum between copiotrophy and oligotrophy, and high and low activity. To illustrate strategies along this continuum more simply, we statistically categorized microbial taxa among three trophic types, based on their incorporation responses to increasing resource concentration. The data indicated that taxa with copiotrophic-like resource use were not necessarily the most active, and taxa with oligotrophic-like resource use were not always the least active. Two of the trophic strategies were not randomly distributed throughout a 16S rDNA phylogeny, suggesting they are under selective pressure in this ecosystem and that a link exists between evolutionary relatedness and substrate affinity. The diversity of strategies to adapt to differences in resource availability highlights the need to expand our understanding of microbial interactions with organic matter in order to better predict microbial responses to a changing environment. manuscript accepted by PLoS ONE 4 datasets: 1) fluorescence data for 3 treatments combined, 2) isotopic data for treatment = LOW, 3) isotopic data for treatment = MEDIUM, 4) isotopic data for treatment = HIGH

2014-03-26 | E-GEOD-56119 | biostudies-arrayexpress

A type 2C protein phosphatase activates high-affinity nitrate uptake by directly dephosphorylating NRT2.1 in Arabidopsis

Project description:Nitrate transporter NRT2.1, which plays a central role in high-affinity nitrate uptake in roots, is activated at the post-translational level in response to nitrogen (N) starvation. However, critical enzymes required for post-translational activation of NRT2.1 remain to be identified. Here, we show that a type 2C protein phosphatase, designated CEPD-induced phosphatase (CEPH), activates high-affinity nitrate uptake by directly dephosphorylating S501 of NRT2.1, a residue that functions as a negative phospho-switch. CEPH is predominantly expressed in epidermal and cortex cells in roots and up-regulated by N starvation via a CEPDL2/CEPD1/2-mediated long-distance signaling from shoots. Loss of CEPH leads to a marked decrease in high-affinity nitrate uptake, tissue nitrate content, and plant biomass. Collectively, our results identify CEPH as a crucial enzyme in N starvation-dependent activation of NRT2.1, providing molecular and mechanistic insights into how plants regulate high-affinity nitrate uptake at the post-translational level in response to the N environment.

2021-03-02 | PXD022343 | Pride

Temperature induced remodeling of the photosynthetic machinery of the red alga Cyanidioschyzon merolae

Project description:Cyanidioschyzon merolae is a thermophilic red alga with an optimum growth temperature of 42°C. In this study we investigated the acclimation process of the alga to a colder temperature (25°C). To this aim we performed quantitative proteomic analyses of whole cells as well as solubilized thylakoid protein complexes.

2017-04-03 | PXD005615 | Pride

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data