1FNE:
reference: Structural and functional consequences of altering a peptide MHC anchor residue., Kersh GJ, Miley MJ, Nelson CA, Grakoui A, Horvath S, Donermeyer DL, Kappler J, Allen PM, Fremont DH, J Immunol 2001 Mar 1;166(5):3345-54. PMID: 11207290

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