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J Neuroimmunol. 2005 Apr;161(1-2):40-8.

Delineation of the minimal encephalitogenic epitope of proteolipid protein peptide(91-110) and critical residues required for induction of EAE in HLA-DR3 transgenic mice.

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1
Department of Immunology, Mayo Clinic College of Medicine, 200, 1st Street SW Rochester, MN 55905, USA.

Abstract

Previously, we have reported that proteolipid protein (PLP) peptide 91-110 can induce experimental autoimmune encephalomyelitis (EAE) in HLA-DR3 transgenic (tg) mice. Here we, report that residues spanning 97-108 are the minimal epitope required for induction of EAE in DR3 mice. Utilizing a series of alanine-substituted peptides, positions 99, 101, 102, 103, 104, and 106 are identified as residues necessary for an immune response. Further analysis indicated that amino acid isoleucine (99), aspartate (102) and lysine (104) are anchor residues facilitating binding to HLA-DR3 molecules. These results may have applications in the future design of peptide based immunotherapy.

PMID:
15748942
DOI:
10.1016/j.jneuroim.2004.12.012
[Indexed for MEDLINE]
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