The mouse intestinal lumen
Bacteria (red) interact closely with the mucus layer (green) of the mouse intestine (nuclear staining of villi in blue)

photo: Qi Yan Ang
Phylogenetic tree
16S rRNA sequence variants transplanted from humans to mice

image: Jordan Bisanz

Orders and billing for the Gnotobiotics Core are moving to iLab effective 3/9/20.

In order to request mice and/or experiments with the core, you will need to use the form(s) on the Gnotobiotics Core iLab page.

If you don’t already have an iLab account, you will need to make one in order to request services.  The landing page for UCSF iLab is here - from this site you can access a step by step guide to starting out with iLab, as well as a link to training guides on the RRP website.


Gnotobiotics is derived from the Greek gnosos, meaning known, and bios, meaning life. This technology enables the breeding and maintenance of germ-free animals that are devoid of any associated microorganisms, including bacteria, archaea, microscopic fungi, parasites, and viruses.  The mission of the Gnotobiotic Core is to enable UCSF researchers to perform experiments introducing defined microbes or microbial consortia to test their impact on host physiology and disease.