1SJE:
reference: A hairpin turn in a class II MHC-bound peptide orients residues outside the binding groove for T cell recognition., Zavala-Ruiz Z, Strug I, Walker BD, Norris PJ, Stern LJ, Proc Natl Acad Sci U S A 2004 Sep 7;101(36):13279-84. Epub 2004 Aug 26. PMID: 15331779

This OCA Structure page
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