Analysis of chimeric and homozygous mouse blood. (A) PCR was performed with whole blood of β3^−/−, WT, and WT/β3^−/− and β3^−/−/WT chimeric mice. PCR products were obtained as 538 bp for β3⁻/WT and 446 bp for WT/β3^−/−. (B) Blood cell counts of mice after bone marrow transplantation. Complete blood counts were obtained, including red cells (RBC), platelets (PLT), white blood cells (WBC), neutrophils (NE), lymphocytes (LY), and monocytes (MO). Data represent mean ± SD of 4-5 independent experiments.