Proteomics

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Analysis of SLP-76 interactomes of human primary CD4+ T cells in presence or absence of Dasatinib treatmentAnalysis of SLP-76 interactomes of human primary CD4+ T cells in presence or absence of Dasatinib treatment


ABSTRACT: Using a CRISPR/Cas9-based approach, we engineered human primary CD4+ T cells in which the bait protein SLP76 was tagged with an affinity Twin-Strep-tag (OST). Through affinity purification coupled with quantitative mass spectrometry, this system allows determining the composition and dynamics of the SLP76 signalosome following T cell activation, and it can be used to assess the mechanisms of action of drugs targeting human T cell activation. Dasatinib is an inhibitor that blocks the adenosine triphosphate binding sites of LCK. Here, we assessed the effect of the Dasatinib treatment on the SLP76 signalosome in CD4+ human T cells. Affinity purification of the OST tagged protein was performed using Streptactin beads, from T cells left non-stimulated, or stimulated for 30s or 120s with anti-CD3 and anti-CD28 antibodies. Prior to stimulation, they were preincubated for 45 min at 37°C with either Dasatinib (100 nM) or vehicle alone (DMSO). Each AP-MS purification was associated with a corresponding control (purification from non-edited WT CD4+ T cells, cultured and stimulated in the same conditions). The number of replicate biological experiments was n=4 for all conditions.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Primary Cell, T Cell

SUBMITTER: Anne Gonzalez de Peredo  

LAB HEAD: Odile Schiltz

PROVIDER: PXD028939 | Pride | 2022-01-28

REPOSITORIES: pride

Dataset's files

Source:
Action DRS
Experimental_design_SLP76_Dasatinib.txt Txt
MaxQuant_files.zip Other
QEMYC210903_02.raw Raw
QEMYC210903_04.raw Raw
QEMYC210903_06.raw Raw
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