Variation in H-2K(k) peptide motif revealed by sequencing naturally processed peptides from T-cell hybridoma class I molecules

G. G. Burrows, K. Ariail, B. Celnik, J. E. Gambee, B. F. Bebo, Halina Offner, Arthur Vandenbark

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Class I major histocompatibility complex (MHC) molecules interact with a diverse array of self and foreign peptides, displaying them on the cell surface and providing an extracellular indication of intracellular invasion. The most clearly defined role for these class I/peptide complexes is to cause effector responses upon binding to antigen-specific receptors of cytotoxic T cells. We have characterized the mouse thymoma/rat Vβ8.2+ T-cell hybridoma C14/BW12-12A1 by fluorescence-activated cell sorting analysis and have used immunoaffinity chromatography to purify class I molecules from these cells. The peptides bound to the class I molecules were fractionated by high- performance liquid chromatography and sequenced. Self-peptide mixtures eluted from the mouse H-2K(k) class I allele revealed a dominant primary sequence motif, with a carboxyl-terminal residue that appeared to be invariantly valine and a secondary or auxiliary anchor residue at position 2 that could be either glutamate or proline. The majority of naturally processed peptide ligands appeared to be octamers. Although peptides eluted off H-2K(k) molecules from tissue derived from a number of different inbred mouse strains also appeared to be octamers, others have reported that isoleucine is the dominant carboxyl-terminal residue. Thus, different cell types displayed distinct differences in naturally processed peptides bound by the same class I alleles. The variation in naturally processed peptides loaded onto the same class I allele most likely reflects the nature of the pool of peptides within the cell available for loading class I molecules.

Original languageEnglish (US)
Pages (from-to)803-811
Number of pages9
JournalJournal of Neuroscience Research
Volume45
Issue number6
DOIs
StatePublished - Sep 15 1996

Fingerprint

Peptide T
Hybridomas
T-Lymphocytes
Peptides
Alleles
Antigen Receptors
Inbred Strains Mice
Thymoma
Isoleucine
Valine
Major Histocompatibility Complex
Proline
Chromatography
Glutamic Acid
Flow Cytometry
High Pressure Liquid Chromatography
Ligands

Keywords

  • AKV virus
  • autoimmune disease
  • H-2K(k)
  • MHC class I
  • peptide-binding motif

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Variation in H-2K(k) peptide motif revealed by sequencing naturally processed peptides from T-cell hybridoma class I molecules. / Burrows, G. G.; Ariail, K.; Celnik, B.; Gambee, J. E.; Bebo, B. F.; Offner, Halina; Vandenbark, Arthur.

In: Journal of Neuroscience Research, Vol. 45, No. 6, 15.09.1996, p. 803-811.

Research output: Contribution to journalArticle

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