Browse
Submit Data
Databases
API
Help

Dataset Information

272 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Total Proteome Analysis from Arabidopsis thaliana SUMO E3 Ligase Mutants

ABSTRACT: Proteomic Analysis of the total proteome from Arabidopsis thaliana SUMO E3 Ligase mutants siz1-2 and mms21-1 and wild-type (Col-0) 8-day old seedlings

INSTRUMENT(S): Q Exactive

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

TISSUE(S): Plant Cell, Rosette

SUBMITTER: Therese Rytz

LAB HEAD: Richard D Vierstra

PROVIDER: PXD009274 | Pride | 2018-04-23

REPOSITORIES: Pride

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
	Col_1_1.raw	Raw
	Col_1_2.raw	Raw
	Col_1_3.raw	Raw
	Col_1_4.raw	Raw
	Col_2_1.raw	Raw

Items per page:

1 - 5 of 37

Publications

SUMOylome Profiling Reveals a Diverse Array of Nuclear Targets Modified by the SUMO Ligase SIZ1 during Heat Stress.

Rytz Thérèse C TC Miller Marcus J MJ McLoughlin Fionn F Augustine Robert C RC Marshall Richard S RS Juan Yu-Ting YT Charng Yee-Yung YY Scalf Mark M Smith Lloyd M LM Vierstra Richard D RD

The Plant cell 20180327 5

The posttranslational addition of small ubiquitin-like modifier (SUMO) is an essential protein modification in plants that provides protection against numerous environmental challenges. Ligation is accomplished by a small set of SUMO ligases, with the SAP-MIZ domain-containing SIZ1 and METHYL METHANESULFONATE-SENSITIVE21 (MMS21) ligases having critical roles in stress protection and DNA endoreduplication/repair, respectively. To help identify their corresponding targets in <i>Arabidopsis thalian ...[more]

PMID: 29588388

Similar Datasets

Microautophagy of storage proteins in maize aleurone cells.

Project description:Pulldown of an ER localized HPPase to identify putative ER microautophagy receptors.

2022-02-08 | PXD011039 | Pride

INTEGRATED MULTI-OMICS ANALYSES OF MAIZE REVEAL ROLES FOR AUTOPHAGIC DURING FIXED CARBON STARVATION

Project description:The turnover of cytoplasmic material via autophagic encapsulation and delivery to vacuoles is essential for recycling cellular constituents, especially under nutrient-limiting conditions. To determine how cells/tissues rely on autophagy, we applied in-depth multi-omic analyses to study maize (Zea mays) autophagy mutants grown after fixed carbon starvation. Surprisingly, broad alterations in the leaf metabolome were evident in plants missing the core autophagy component ATG12 even without stress, particularly affecting products of lipid turnover and secondary metabolites, which were underpinned by substantial changes in the transcriptome and/or proteome. Cross-comparison of mRNA and protein abundances allowed for the identification of organelles, protein complexes, and individual proteins targeted for selective autophagic clearance, and revealed several processes controlled by this catabolism. Fixed carbon starvation induced the proteins involved in alternative respiration together with the upregulation of various alternative catabolic processes. Collectively, we describe a facile proteomic strategy to survey autophagic substrates, and show that autophagy has a greater than expected influence in sculpting plant proteomes and membranes both before and during nitrogen stress.

2020-07-15 | PXD017077 | Pride

INTEGRATED MULTI-OMICS ANALYSES OF MAIZE REVEAL ROLES FOR AUTOPHAGIC RECYCLING IN PROTEOME REMODELING AND LIPID TURNOVER

Project description:The turnover of cytoplasmic material via autophagic encapsulation and delivery to vacuoles is essential for recycling cellular constituents, especially under nutrient-limiting conditions. To determine how cells/tissues rely on autophagy, we applied in-depth multi-omic analyses to study maize (Zea mays) autophagy mutants grown under nitrogen-replete and starvation conditions. Surprisingly, broad alterations in the leaf metabolome were evident in plants missing the core autophagy component ATG12 even without stress, particularly affecting products of lipid turnover and secondary metabolites, which were underpinned by substantial changes in the transcriptome and/or proteome. Cross-comparison of mRNA and protein abundances allowed for the identification of organelles, protein complexes, and individual proteins targeted for selective autophagic clearance, and revealed several processes controlled by this catabolism. Collectively, we describe a facile proteomic strategy to survey autophagic substrates, and show that autophagy has a greater than expected influence in sculpting plant proteomes and membranes both before and during nitrogen stress.

2018-10-08 | PXD009627 | Pride

A Spirodela polyrhiza genome and proteome reveal conserved chromosomal structure and translation favoring energy production

Project description:Duckweeds are a monophyletic group of rapidly reproducing aquatic monocots in the Lemnaceae family. Spirodela polyrhiza, the Greater Duckweed, has the largest body plan yet the smallest genome size in the family (1C = 150 Mb). Given their clonal, exponentially fast reproduction, a key question is whether genome structure is conserved across the species in the absence of meiotic recombination. We generated a highly contiguous, chromosome-scale assembly of Spirodela polyrhiza line Sp7498 using Oxford Nanopore plus Hi-C scaffolding (Sp7498_HiC) that is highly syntenic with a related line (Sp9509). Both the Sp7498_HiC and Sp9509 genome assemblies reveal large chromosomal misorientations in a recent PacBio assembly of Sp7498, highlighting the necessity of orthogonal long-range scaffolding techniques like Hi-C and BioNano optical mapping. Proteome analysis of Sp7498 verified the expression of nearly 2,250 proteins and revealed a high level of proteins involved in photosynthesis and carbohydrate metabolism among other functions. In addition, a strong increase in chloroplast proteins was observed that correlated to chloroplast density. This Sp7498_HiC genome was generated cheaply and quickly with a single Oxford Nanopore MinION flow cell and one Hi-C library in a classroom setting. Combining these data with a mass spectrometry-generated proteome, demonstrates that duckweed is a model for genomics- and proteomics-based education.

2022-10-26 | PXD017093 | Pride

Variation in upstream open reading frames contributes to allelic diversity in protein abundance

Project description:The 5' untranslated region (UTR) sequence of eukaryotic mRNAs may contain upstream open reading frames (uORFs), which can regulate translation of the main open reading frame (mORF). The current model of translational regulation by uORFs posits that when a ribosome scans an mRNA and encounters a uORF, translation of that uORF can prevent ribosomes from reaching the mORF and cause decreased mORF translation. In this study, we first observed that rare variants in the 5' UTR dysregulate protein abundance. Upon further investigation, we found that rare variants near the start codon of uORFs can repress or derepress mORF translation, causing allelic changes in protein abundance. This finding holds for common variants as well, and common variants that modify uORF start codons also contribute disproportionately to metabolic and whole-plant phenotypes, suggesting that translational regulation by uORFs serves an adaptive function. These results provide evidence for the mechanisms by which natural sequence variation modulates gene expression, and ultimately, phenotype.

2021-11-02 | PXD026378 | Pride

Protein disaggregation by HSP101

Project description:Proteins that are vital to cell survival can become unfolded during heat stress, leading to the formation of toxic aggregates. Molecular chaperones, proteases and autophagic pathways are required to protect cells from the accumulation of protein aggregates. Small Heat Shock Proteins (sHSPs) form a first line of defense by binding to unfolding proteins to prevent irreversible protein aggregation and the complex is rapidly sequestered in stress granules during heat stress recovery. HSP101 subsequently accumulates on the surface of these insoluble foci to mediate protein disaggregation. The dynamics of this process is consistent between different cell types but indicates that protein homeostasis varies particularly between shoot and root cells. Immunoblot analysis revealed that a substantial portion of proteins present in these foci have ubiquitin moieties and protein disaggregation is necessary prior to proteasomal degradation. Co-immuno precipitation of HSP101 revealed an interaction with the 26S proteasome and localization studies revealed that HSP101 and RPN1 (Proteasome regulatory particle) initially accumulate in distinct cytosolic foci during heat stress but co-localize in the same foci during heat stress recovery which could spatiotemporal facilitate the degradation of the aggregated ubiquitinated proteins. To determine which proteins are degraded by the proteasome after disaggregation, we catalogued 620 proteins that are resolubilized by HSP101 during heat stress recovery. GO-annotation analysis revealed a significant enrichment for RNA-binding proteins, UBC13-MMS2 complex, transcription factors and ubiquitin-protein ligases. None of these proteins were preferentially targeted by the proteasome, indicating that ubiquitination occurs on a broad range of proteins and is important for the clearance of a diverse array of proteins.

2019-05-14 | PXD011483 | Pride

Maize seed proteome of autophagy deficient plants throughout development

Project description:Autophagy or ‘self-eating’ is a conserved and essential route for recycling intracellular constituents in eukaryotes. For plants, autophagy supports robust crop performance by regulating traits such as nitrogen-use efficiency, carbon allocation, reproduction, grain fill, and protection against various environmental stresses. To define the autophagic mechanisms underlining nutrient partitioning, which are used to sustain plant fitness during rapid growth of sink tissues, we applied a comprehensive multi-omic approach using maize (Zea mays) mutants lacking the core autophagy component ATG12. A sink tissue of particular interest are seeds, which require massive investments of fixed carbon for development. The transcriptome, proteome, metabolome, and ionome of developing seeds from atg12 mutants at 8 and 18 days after pollination (DAP) were analyzed. Developing atg12 seeds exhibited pronounce transcriptional reprogramming at 8 DAP, which may contribute to the observed hyperaccumulation of proteins, metabolites, and ions at 18 DAP. Collectively, this multi-omic approach should provide new perspectives into the adaptive role(s) of autophagy in coordinating nutrient allocation.

2023-03-10 | PXD022863 | Pride

Rhizogenic Agrobacterium protein RolB interacts with the TOPLESS and NINJA repressor proteins to reprogram plant jasmonate signaling (GUS overexpression)

Project description:RNA sequencing was performed on tomato hairy root lines transformed with a GUS overexpression construct, 24 h after mock and jasmonate (JA) treatment. This set-up allowed us to map the gene targets of JA in tomato hairy roots after 24h.

2022-07-08 | E-MTAB-11876 | biostudies-arrayexpress

Rhizogenic Agrobacterium protein RolB interacts with the TOPLESS and NINJA repressor proteins to reprogram plant jasmonate signaling (rolB overexpression)

Project description:RNA sequencing was performed to compare the gene expression in tomato hairy root lines transformed with the inducible rolB, rolBmEAR2 or GFP overexpression constructs, 24 h after mock and β-estradiol treatments. This set-up allowed us to map the general RolB targets as well as the specific targets of the RolB-mediated inhibition of the TPL function.

2022-07-08 | E-MTAB-11880 | biostudies-arrayexpress

Redox activation of excitatory pathways in auditory neurons as mechanism of age-related hearing loss

Project description:Age-related hearing (ARHL) loss affects a large part of the human population with a major impact on our aging societies. Yet, underlying mechanisms are not understood, and no validated therapy or prevention exists. NADPH oxidases (NOX), are important sources of reactive oxygen species (ROS) in the cochlea and might therefore be involved in the pathogenesis of ARHL. Here we investigate ARHL in a mouse model. Wild type mice showed early loss of hearing and cochlear integrity, while animals deficient in the NOX subunit p22phox remained unaffected up to six months. Genes of the excitatory pathway were down-regulated in p22phox-deficient auditory neurons. Our results demonstrate that NOX activity leads to upregulation of genes of the excitatory pathway, to excitotoxic cochlear damage, and ultimately to ARHL. In the absence of functional NOXs, aging mice conserve hearing and cochlear morphology. Our study offers new insights into pathomechanisms and future therapeutic targets of ARHL.

2020-12-18 | E-MTAB-8668 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

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