High-density monitoring of tyrosine phosphorylation signaling targets in human tumors using internal standard triggered targeted quantitation

ABSTRACT: SureQuant pTyr, a targeted, tyrosine phosphorylation (pTyr) mass spectrometry method, was applied to profile the pTyr signatures of human colorectal tumor samples. Using internal standard guided acquisition with the SureQuant acquisition mode on the Oribtrap Exploris 480 mass spectrometer (Thermo Scientific), the real-time detection of trigger peptides during analysis initiates the sensitive and selective quantitation of endogenous pTyr targets. This framework allows for reliable quantification of several hundred commonly dysregulated pTyr targets with high quantitative accuracy and improves the robustness and usability of targeted acquisition.

INSTRUMENT(S):

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Colon

DISEASE(S): Colon Cancer

SUBMITTER: Lauren Stopfer  

LAB HEAD: Forest White

PROVIDER: PXD021857 | Pride | 2022-02-16

REPOSITORIES: Pride