2A83:
reference: Conformational dimorphism of self-peptides and molecular mimicry in a disease-associated HLA-B27 subtype., Ruckert C, Fiorillo MT, Loll B, Moretti R, Biesiadka J, Saenger W, Ziegler A, Sorrentino R, Uchanska-Ziegler B, J Biol Chem. 2006 Jan 27;281(4):2306-16. Epub 2005 Oct 12. PMID: 16221670

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