A comprehensive analysis of constitutive naturally processed and presented HLA-C*04:01 (Cw4)-specific peptides

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Abstract

The human B lymphoblastoid cell line C1R is widely regarded as human leukocyte antigen-A (HLA-A)/HLA-B negative and is therefore frequently exploited as a recipient cell line to study HLA class I functions. However, the normal levels of HLA-C*04:01 often hamper the investigation of introduced HLA class I allomorphs, which is particularly evident in sensitive applications such as mass spectrometry. Here we describe the comprehensive analysis of endogenous HLA-C*04:01 ligands expressed on the surface of C1R cells to (i) define a large sequence dataset of HLA-C*04:01 ligands, to (ii) refine the HLA-C*04:01 peptide-binding motif and (iii) to provide a resource that allows discrimination between peptides bound to introduced HLA class I subtypes and to the endogenous HLA-C*04:01 molecules.
Original languageEnglish
Pages (from-to)174-179
Number of pages6
JournalTissue Antigens
Volume83
Issue number3
DOIs
Publication statusPublished - Mar 2014

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