Basic Information

Strain Name
Common Name
B-hFOLR4 mice
Catalog number
IZUMO1R (FOLR4, FR-delta, Folbp3, JUNO)

Targeting strategy

Gene targeting strategy for B-hFOLR4 mice.

The exons 2-5 of mouse Folr4 gene that encode the full-length protein were replaced by human FOLR4 exons 1-4 in B-hFOLR4 mice.

mRNA and protein expression analysis

Strain specific analysis of FOLR4 gene expression in wild-type mice and B-hFOLR4 mice by RT-PCR. Mouse Folr4 mRNA was detectable in splenocyte of wild-type mice (+/+). Human FOLR4 mRNA was detectable only in homozygous B-hFOLR4 mice(H/H) but not in wild-type mice.

Strain specific FOLR4 expression analysis in homozygous B-hFOLR4 mice by western blot. Spleen tissue and Kidney tissue were collected from wild-type C57BL/6 mice (+/+) and homozygous B-hFOLR4 mice(H/H), and analyzed by western blot with anti-FOLR4 antibody. Human FOLR4 was detectable in wild-type mice and homozygous B-hFOLR4 mice, as the antibody is crossly reactive with FOLR4 in human and mice.


mRNA and protein expression analysis:

Human FOLR4 mRNA was detectable in B-hFOLR4 mice, and we proved that the protein could be expressed normally by western blot analysis.