Protection from lysis by natural killer cells of group 1 and 2 specificity is mediated by residue 80 in human histocompatibility leukocyte antigen C alleles and also occurs with empty major histocompatibility complex molecules
The Journal of Experimental Medicine (1996) - Comments
pubmed: 9064351  issn: 0022-1007  doi: 10.1084/jem.184.3.913  issn: 1540-9538 

O Mandelboim, H T Reyburn, M Valés-Gómez, L Pazmany, M Colonna, G Borsellino, J L Strominger