1AQD: Hla-Dr1 (Dra, Drb1 0101) Human Class II Histocompatibility P (Extracellular Domain) Complexed With Endogenous Peptide
reference: The class II MHC protein HLA-DR1 in complex with an endogenous peptide: implications for the structural basis of the specificity of peptide binding., Murthy VL, Stern LJ, Structure 1997 Oct 15;5(10):1385-96. PMID: 9351812

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