We optimized a procedure of phosphotyrosine enrichment with immunoprecipitation. Then the optimized procedure was applied into a global analysis of phosphotyrosine status in culture cells treated with Erlotinib.
Phosphotyrosine (pY) enrichment is critical for expanding fundamental and clinical understanding of cellular signaling by mass spectrometry-based proteomics. However, current pY enrichment methods exhibit a high cost per sample and limited reproducibility due to expensive affinity reagents and manua...
Protein tyrosine phosphatases (PTPs) cooperate with protein tyrosine kinases to regulate intracellular tyrosine phosphorylation levels, and their dysfunction is associated with various diseases. However, due to the low abundance of PTPs in cells, comprehensive analysis requires an enrichment step pr...
Phosphotyrosine signaling plays a critical role in many biological processes, from cell proliferation to immune response. Despite its importance, proteomic studies of tyrosine phosphorylation have been limited in scale and throughput by costly reagents and labor-intensive protocols. To address this,...
ORGANISM(S): Homo sapiens (Human) Saccharomyces cerevisiae Saccharomyces cerevisiae (Baker's yeast)
KRAS is one of the most frequently mutated genes across all cancer subtypes. Two of the most frequent oncogenic KRAS mutations observed in patients result in glycine to aspartic acid substitution at either codon 12 (G12D) or 13 (G13D). Although the biochemical differences between these two predomina...
Cerebrospinal Fluid (CSF) surrounds the brain and provides it protection inside the skull. It is also used clinically for diagnosis of neurological disorders as well as to monitor disease progression. Neurodegeneration in the brain is known to be associated with altered phosphorylation of proteins e...
Parkinson’s disease (PD) is the second most prevalent neurodegenerative disorder caused by dopaminergic neuronal deaths. For a proper treatment of PD, biomarkers that would enable us to monitor disease progression or responses to a disease-modifying agent, or that can be used as a presymptomatic mar...
