Strikingly , despite the observed repertoire heterogeneity , all clones displayed a narrow range of MHC /peptide density requirements in cytotoxicity assays ( ED50 between 9 and 36 nM ) .
strikingly , despite the observed repertoire heterogeneity , all clones displayed a narrow range of mhc /peptide density requirements in cytotoxicity assays ( ed50 between 9 and 36 nm ) .
O O O O O O O O O O O O O O O B-protein_complex O O O O B-other_name I-other_name O B-other_name O O O O O O O