Strain specific analysis of CD155 gene expression in wild type (WT) and B-Hcd155 mice by RT-PCR. 

Mouse Cd155 mRNA was detectable only in splenocytes of wild type (+/+) mice. Human CD155 mRNA was detectable only in homozygous B-hCD155 but not in wild-type mice.

Strain specific CD155 expression analysis in homozygous B-hCD155 mice by flow cytometry. 

Peritoneal washing macrophage were collected from wild-type (+/+) and homozygous B-hCD155 (H/H) mice and analyzed by flow cytometry with species-specific anti-CD155 antibody. Mouse CD155 was detectable in wild-type mice. Human CD155 was exclusively detectable in homozygous B-hCD155 but not in wild-type mice.