has part has measurement unit label is about has specified input has specified output MHC protein complex X-ray crystallography 3D molecular structure determination assay 3D structural organization datum purified MHC molecule preparation X-ray crystallography assay determining the 3D structure of a MHC:ligand complex PERSON:Randi Vita, Jason Greenbaum, Bjoern Peters IEDB X-ray crystallography assay determining the 3D structure of a MHC:ligand complex 3D structure|x-ray crystallography|angstroms A X-ray crystallography 3D molecular structure determination assay that characterizes the 3-dimensional molecular structure of a MHC:ligand complex. 3D molecular structure determination assay of a MHC:ligand complex MHC:ligand complex metadata complete angstrom