Proteomics

Dataset Information

0

C1R.A*01:01, C1R.A*02:01, C1R.A*24:02 MHC class I immunopeptidome LC-MSMS

ABSTRACT: Characterisation of peptide ligands of Major histocompatibility class (MHC) I isolated by immunoaffinity purification from the C1R (Class I reduced) B-lymphoblastoid cell line, transfected with the MHC class I allele HLA-A*01:01, or HLA-A*02:01, HLA-A*24:02. In addition, public mass spectrometry (MS) datasets of HLA-I and HLA-II immunopeptidome derived from patients’ samples, PBMC or cell lines, and shotgun proteomics from trypsin/elastase digestion were analysed.

INSTRUMENT(S): TripleTOF 6600

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Cell Culture, Jurkat Cell, Blood, Hela Cell

SUBMITTER: Shutao Mei  

LAB HEAD: Anthony W. Purcell

PROVIDER: PXD014754 | Pride | 2020-07-27

REPOSITORIES: Pride

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Dataset's files

Source:
Action DRS
0120403_EXQ1_MiBa_SA_JY_mHLA_19.mgf Mgf
0120411_EXQ1_MiBa_SA_JY_mHLA_15-10-250.mgf Mgf
0120411_EXQ1_MiBa_SA_JY_mHLA_5_15-10-250.mgf Mgf
0120515_EXQ3_MiBa_SA_HCT116_mHLA-1.mgf Mgf
0120518_EXQ0_MiBa_SA_HCT116_mHLA-2.mgf Mgf
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Publications

Immunopeptidomic Analysis Reveals That Deamidated HLA-bound Peptides Arise Predominantly from Deglycosylated Precursors.

Mei Shutao S   Ayala Rochelle R   Ramarathinam Sri H SH   Illing Patricia T PT   Faridi Pouya P   Song Jiangning J   Purcell Anthony W AW   Croft Nathan P NP  

Molecular & cellular proteomics : MCP 20200501 7

The presentation of post-translationally modified (PTM) peptides by cell surface HLA molecules has the potential to increase the diversity of targets for surveilling T cells. Although immunopeptidomics studies routinely identify thousands of HLA-bound peptides from cell lines and tissue samples, in-depth analyses of the proportion and nature of peptides bearing one or more PTMs remains challenging. Here we have analyzed HLA-bound peptides from a variety of allotypes and assessed the distribution  ...[more]

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