Supplementary information to paper: The Atlantic cod MHC I compartment has the properties needed for cross-presentation in the absence of MHC II. Authors: Synne Arstad Bjørnestad, Monica Hongrø Solbakken, Bernd Thiede, Ketil Hylland, Kjetill S Jakobsen, Sissel Jentoft, Oddmund Bakke, Cinzia Progida @ University of Oslo, Norway.