This immunodeficient nude mouse originated from NIH and was originally thought to be a BALB/c congenic. It was later determined that it was not inbred and is therefore maintained as an outbred. It is not associated with any stock or strain. The animal lacks a thymus, is unable to produce T cells, and is therefore immunodeficient. To Charles River from NCI in 2010.

Coat Color

Hairless, albino background

Ideal For:

Tumor biology and xenograft research

Strain Code:

490 (Homozygous), 491 (Heterozygous, not immunodeficient)

I need to...

Pre-identify my animal.

Our Pre-ID™ services enable you to receive animal models that have been identified with the codes you provide us.