WITHDRAWN: Quantitative mass spectrometry analysis of PD-L1 protein expression, N-glycosylation and expression stoichiometry with PD-1 and PD-L2 in human melanoma

Abstract

This article has been withdrawn by the authors. We discovered an error after this manuscript was published as a Paper in Press. Specifically, we learned that the structures of glycans presented for the PD-L1 peptide were drawn and labeled incorrectly. We wish to withdraw this article and submit a corrected version for review.

Keywords: Absolute quantification; Biomarker: Prognostic; Clinical proteomics; Drug targets*; Glycosylation; Immunohistochemistry; Melanoma; Parallel reaction monitoring; immune checkpoint; immunotherapeutics.