Site-Specific GlcNAcylation of Human Erythrocyte Proteins

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FIG. 4.
FIG. 4.

O-GlcNAc as potential biomarkers for diabetes. Specific O-GlcNAc sites (underlined Ser) on ankyrin-1 (identified and quantified by QSTAR) and catalase (identified by LTQ-Orbitrap) were upregulated 2.7- and 3.9-fold, respectively. A: Extracted ion chromatogram (XIC). B: Averaged full-scan spectra during elution time of the ion pairs. C: MS/MS spectra that showed the peptide sequences and mapped DTT attachment sites.

This Article

  1. Diabetes vol. 58 no. 2 309-317