Resident CD45.2 microglia from both control and GVHD mice are F11r+ and remain F11r+ throughout the course of the disease (3 weeks) without increasing CD45.2 surface expression (Figure S4, Table S6) or expressing CD45.1 (Figure 4C, CD11b+ CD45.1- population below R2). The gene discussed is ITGAM; the disease is graft versus host disease.