spacer Crystal Structure of the MHC Class II Molecule HLA-DR1 in Complex with the Fluorogenic Peptide, AcPKXVKQNTLKLAT (X=3-[5-(dimethylamino)-1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl]-L-alanine) and the Superantigen, SEC3 Variant 3B2


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Quaternary structure
Assembly:1

Heterosearch Tetramericsearch
4 subunits of 4 distinct polymers entities (8 molecules in total including ligands)
Author defined assembly.

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