HLA-I immunopeptidome profiling of human cells infected with high-containment enveloped viruses

STAR Protoc. 2022 Dec 16;3(4):101910. doi: 10.1016/j.xpro.2022.101910. Epub 2022 Dec 8.

Abstract

Immunopeptidome profiling of infected cells is a powerful technique for detecting viral peptides that are naturally processed and loaded onto class I human leukocyte antigens (HLAs-I). Here, we provide a protocol for preparing samples for immunopeptidome profiling that can inactivate enveloped viruses while still preserving the integrity of the HLA-I complex. We detail steps for lysate preparation of infected cells followed by HLA-I immunoprecipitation and virus inactivation. We further describe peptide purification for mass spectrometry outside a high-containment facility. For complete details on the use and execution of this protocol, please refer to Weingarten-Gabbay et al. (2021).1.

Keywords: Immunology; Mass Spectrometry; Microbiology.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Histocompatibility Antigens Class I*
  • Humans
  • Mass Spectrometry
  • Peptides / chemistry
  • Viruses*

Substances

  • Histocompatibility Antigens Class I
  • Peptides