Empty MHC class I molecules come out in the cold.
Ljunggren HG, Stam NJ, Ohlén C, Neefjes JJ, Höglund P, Heemels MT, Bastin J, Schumacher TN, Townsend A, Kärre K, et al.
Ljunggren HG, et al. Among authors: hoglund p.
Nature. 1990 Aug 2;346(6283):476-80. doi: 10.1038/346476a0.
Nature. 1990.
PMID: 2198471