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. 2017 Nov 14;7:469. doi: 10.3389/fcimb.2017.00469

Figure 1.

Figure 1

Extracted ion chromatograms of four representative doubly charged SYNGR2 peptides. Jurkat cells were treated with Cdt holotoxin as described in Materials and Methods for 1 h. Cell extracts were prepared and immunoprecipitated with immobilized anti-CdtB or isotype control IgG and the samples analyzed as described. The immunoprecipitates obtained with anti-CdtB mAb show strong signals for the peptides indicated; results are consistent with detection of MS/MS spectra for SYNGR2 peptides obtained exclusively with this mAb and were not detectable in the control immunoprecipitate.