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T cell antigen receptor (TCR) signaling depends upon the kinases Lck and Zap70. Lck phosphorylates the TCR, facilitating Zap70 recruitment to the stimulated TCR. Lck also phosphorylates Zap70, relieving its auto-inhibition and activating its catalytic domain. Zap70 then phosphorylates the critical a...
ORGANISM(S): Homo sapiens (Human) 
2019-11-12 | PXD008258 | Pride
Memory T cells are primed for rapid responses to antigen; however, the molecular mechanisms responsible for priming remain incompletely defined. CpG methylation in promoters is an epigenetic modification, which regulates gene transcription. Using targeted bisulfite sequencing, we examined methylatio...
ORGANISM(S): Homo sapiens 
To study bi-directional signaling between cancer-associated fibroblasts (CAFs) and cancer cells, we used stable isotope labeling by amino acids in cell culture (SILAC) to determine changes in tyrosine phosphorylation upon direct contact of the two cell types.
ORGANISM(S): Homo sapiens (Human) 
2020-05-26 | PXD003574 | Pride
Sequencing the tyrosine phosphoproteome using MS-based proteomics is challenging due to the low abundance of tyrosine phosphorylation in cells, a challenge compounded in scarce samples like primary cells or clinical samples. The broad-spectrum optimization of selective triggering (BOOST) method was ...
ORGANISM(S): Mus musculus (Mouse) 
2025-12-08 | PXD053863 | Pride
Vav1, a Rac/Rho guanine nucleotide exchange factor and a critical component of the T cell receptor (TCR) signaling cascade, is rapidly tyrosine phosphorylated in response to T cell activation. Previous studies using Vav1 knockout models have demonstrated its importance in TCR signaling. Although Vav...
ORGANISM(S): Homo sapiens (Human) 
2016-05-31 | PXD002022 | Pride
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