Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Disabled-2 interacting proteins in U46619-stimulated human platelet activation

ABSTRACT: The interacting proteins of Disabled-2 (Dab2) and their functional consequences in U46619-stimulated human platelets were investigated.

INSTRUMENT(S): LTQ Orbitrap

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Blood Platelet, Platelet

SUBMITTER: Hui-Ju Tsai

LAB HEAD: Professor Ching-Ping Tseng

PROVIDER: PXD048490 | Pride | 2024-10-24

REPOSITORIES: Pride

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
	20230818-CPT01-150min-all.mzid.gz	Mzid
	20230818-CPT01-150min.mzML	Mzml
	20230818-CPT01-150min.raw	Raw
	20230818-CPT02-150min-all.mzid.gz	Mzid
	20230818-CPT02-150min.mzML	Mzml

Items per page:

1 - 5 of 12

Similar Datasets

Identification of AKTIP protein interaction partners in breast cancer cells MCF7

Project description:AKTIP (also named FTS) was initially identified as an interacting partner of AKT. However, the binding between AKTIP and AKT appears to be context dependent. In this study, the protein binding partners of AKTIP was determined by immunoprecipitation followed by mass spectrometry using samples of breast cancer cells MCF7.

2023-01-02 | PXD035716 | Pride

The phosphatase DUSP22/JKAP inhibits UBR2-mediated K63-ubiquitination and activation of Lck in TCR signaling

Project description:DUSP22 (also named JKAP) is a dual-specificity phosphatase that inhibits T cell activation. Here we identified the E3 ubiquitin ligase UBR2 as an upstream activator of Lck during T-cell activation. JKAP dephosphorylated UBR2 at two residues, leading to ubiquitin-mediated UBR2 degradation. The SCF (SKP1-CUL1-βTrCP) complex induced UBR2 Lys48-linked ubiquitination at three lysine residues. Moreover, single-cell RNA sequencing analysis and UBR2 knockout showed that UBR2 increased proinflammatory cytokines. Remarkably, UBR2 induced Lys63-linked ubiquitination of Lck at two lysine residues and subsequent Lck Tyr394 phosphorylation/activation in TCR signaling. Conversely, TCR-induced Lck activation and JKAP knockout-enhanced inflammatory phenotypes were attenuated by UBR2 knockout. Consistently, the UBR2- Lck interaction and Lck Lys63-linked ubiquitination were induced in peripheral blood T cells of human SLE patients. Collectively, UBR2 protein stability and UBR2-induced Lck ubiquitination/activation are inhibited by JKAP, leading to attenuation of T-cell activation and T-cell-mediated inflammation.

2024-01-04 | PXD043490 | Pride

The phosphatase DUSP22/JKAP inhibits UBR2-mediated K63-ubiquitination and activation of Lck in TCR signaling ( Sequential regulation of Lck K63-ubiquitination and autophosphorylation by UBR2 and DUSP22/JKAP in TCR signaling)

Project description:DUSP22 (also named JKAP) is a dual-specificity phosphatase that inhibits T cell activation. Here we identified the E3 ubiquitin ligase UBR2 as an upstream activator of Lck during T-cell activation. JKAP dephosphorylated UBR2 at two residues, leading to ubiquitin-mediated UBR2 degradation. The SCF (SKP1-CUL1-βTrCP) complex induced UBR2 Lys48-linked ubiquitination at three lysine residues. Moreover, single-cell RNA sequencing analysis and UBR2 knockout showed that UBR2 increased proinflammatory cytokines. Remarkably, UBR2 induced Lys63-linked ubiquitination of Lck at two lysine residues and subsequent Lck Tyr394phosphorylation/activation in TCR signaling. Conversely, TCR-induced Lck activation and JKAP knockout-enhanced inflammatory phenotypes were attenuated by UBR2 knockout. Consistently, the UBR2-Lck interaction and Lck Lys63-linked ubiquitination were induced in peripheral blood T cells of human SLE patients. Collectively, UBR2 protein stability and UBR2-induced Lck ubiquitination/activation are inhibited by JKAP, leading to attenuation of T-cell activation and T-cell-mediated inflammation.

2024-01-04 | PXD043454 | Pride

The phosphatase DUSP22/JKAP inhibits UBR2-mediated K63-ubiquitination and activation of Lck in TCR signaling

2024-01-04 | PXD043463 | Pride

Epitope mapping of potential novel immunogenic proteins of Campylobacter jejuni NCTC 11168

Project description:A number of seven proteins were selected during immunoscreening and further analyses. The proteins were in silico divided into overlapping 15-mer oligopeptides with an overlap of 11 residues. The microarrays were incubated with different antibodies to C. jejuni, Escherichia coli and Salmonella enterica. Each microarray was separated into three individual incubation chambers using ProPlate 3-Well modules. Within each incubation chamber, each peptide was spotted in triplicate with the controls spotted nine times each. The controls included human-IgG, rabbit-IgG, mouse-IgG and myelin basal protein (MBP). Each chamber was incubated independently using different polyclonal antibodies to C. jejuni, and for specificity testing, with an antibody to E. coli or S. enterica. Thus, samples 4_1, 4_2, 5_1 and 5_2 represent epitope mapping of three proteins with C. jejuni antibodies, while 6_1, 6_2, 7_1 and 7_2 represent the data after incubation with an E. coli antibody investigating unspecific interactions of the antibody to the potential linear epitopes from C. jejuni. Finally, for four different proteins from C. jejuni, the set two indicated by S2 was performed. Here, S2_6_1, S2_7_1, S2_7_2, S2_8_1 and S2_8_2 indicate epitope mapping after incubation with antibodies to C. jejuni, while the remaining samples were performed to test these latter 4 proteins for specificity by incubation with antibody to S. enterica.

2013-04-06 | E-GEOD-45542 | biostudies-arrayexpress

Alanine scan of 11 amino acid long novel linear epitope from C. jejuni cj0669 protein

Project description:A short sequence of 11 amino acids belonging to the cj0669 protein from Campylobacter jejuni NCTC 11168, which was previously identified as potentially immunogenic, was analyzed via alanine scanning to narrow down the significant amino acid residues within the sequence. Twelve peptides, one representing the original sequence and eleven peptides with each residue replaced by alanine in turn, were synthesized on microarrays by JPTs Pepstar Technology. For each microarray, nine replicates for each peptide were spotted. The microarray was separated into three incubation chambers by the ProPlate 3-well module (Grace Biolabs) to allow for incubation with different antibodies in parallel. For specific interactions, rabbit polyclonal IgG to C. jejuni was used, while unspecific binding to the epitope sequence was checked using rabbit polyclonal IgG to Salmonella enterica.

2013-04-06 | E-GEOD-45556 | biostudies-arrayexpress

Alanine scan of 11 amino acid long novel linear epitope from C.jejuni cj0669 protein [2]

Project description:A short sequence of 11 amino acids belonging to the cj0669 protein from Campylobacter jejuni NCTC 11168 which was previously identified as potentially immunogenig was analyzed via alanine scanning to narrow down the significant amino acid residues within the sequence. Twelve peptides, one representing the original sequence and eleven peptides with each residue replaced by alanine in turn, were synthesized on microarrays by JPTs Pepstar Technology. For each microarray, nine replicates for each peptide were spotted. The microarray was seperated into three incubation chambers by the ProPlate 3-well module (Grace Biolabs) to allow for incubation with different antibodies in parallel. For specific interaction rabbit polyclonal IgG to C.jejuni was used, while non-specific binding to the epitope sequence was checked using rabbit polyclonal IgG to H. pylori (Abcam ab20459).

2013-05-06 | E-GEOD-46651 | biostudies-arrayexpress

Epitope Mapping of potential novel immunogenic proteins of Klebsiella pneumoniae MGH 78578

Project description:A number of six proteins were selected during immunoscreening and further analyses. The proteins were divided in silico into overlapping 15-mer oligopeptides with an overlap of 11 residues. The microarrays were incubated with different antibodies to K. pneumoniae, C. jejuni and S. aureus. Each microarray was seperated into three individual incubation chambers using ProPlate 3-Well modules. Within each incubation chamber each peptide was spotted in triplicate with the controls spotted nine times each. The controls included Human-IgG, Rabbit-IgG, Mouse-IgG and Myelin Basal Protein. Each chamber was incubated independently using different polyclonal antibodies to K. pneumoniae and for specificity testing with antibodies to C. jejuni or S. aureus. Thus, samples 2_1, 2_2, 3_1 and 3_2 represent epitope mapping of three proteins and S2_5_1, S2_5_2, S2_6_1 and S2_6_2 epitope mapping of three different proteins with K. pneumoniae antibodies, while 4_1, 4_2, 5_1 and 5_2 represent specificity assays for the first set of proteins (using C. jejuni and S. aureus antibodies) and S2_1_1, S2_1_2, S2_2_1, S2_2_2 (C. jejuni AB) as well as S2_7_1, S2_7_2, S2_8_1, S2_8_2 (S. aureus AB) for the second set of proteins.

2014-02-02 | E-GEOD-52537 | biostudies-arrayexpress

HDAC8 regulates escape from BRAF inhibitor therapy in Melanoma: IMAC Phosphoproteomics

Project description:Melanoma cells are highly plastic and have the ability to switch to a dedifferentiated, invasive phenotype in response to multiple stimuli. Here, we show that exposure of melanoma cell lines and patient specimens to multiple stresses including BRAF-MEK inhibitor therapy, hypoxia and UV-irradiation leads to an increase in histone deacetylase 8 (HDAC8) expression/activity, and in turn, the adoption of a drug-resistant, invasive phenotype. Systems level analyses using mass spectrometry-based phosphoproteomics implicated HDAC8 in the regulation of MAPK and AP-1 signaling pathways. Introduction of HDAC8 into drug-naïve melanoma cells conveyed resistance both in vitro and in in vivo xenograft models. HDAC8-mediated BRAF inhibitor resistance was mediated via receptor tyrosine kinase (RTK) activation leading to Ras/CRAF/MEK/ERK signaling. Although HDACs primarily function at the histone level, they also regulate signaling through the modulation of non-histone substrates. In line with this, HDAC8 introduction decreased the acetylation of c-Jun, increasing its transcriptional activity and enriching for an AP-1 gene signature. Mutation of the putative c-Jun acetylation site at lysine residue 273 reduced the transcriptional activation of c-Jun in melanoma cells and conveyed resistance to BRAF inhibition through increased RTK expression and enhanced MAPK pathway activity. In vivo xenograft studies confirmed the key role of HDAC8 in therapeutic adaptation, with both non-selective and HDAC8-specific inhibitors enhancing the durability of response to BRAF inhibitor therapy. Our studies demonstrate that HDAC8-specific inhibitors could represent an excellent strategy to limit the adaptation of melanoma cells to multiple stresses and therapeutic interventions, including BRAF-MEK inhibitor combinations.

2020-07-07 | PXD012813 | Pride

Identification of novel immunodominant proteins from Campylobacter jejuni and the characterization of linear epitopes

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2013-04-06 | E-GEOD-44717 | biostudies-arrayexpress