5I7Z92359224912ENSG00000130545ENSMUSG00000044279Q9BUF7Q8QZT4NM_139161NM_174881NM_174882NM_177638NM_001347408NM_001359813NM_001359814NP_631900NP_777377NP_777378NP_001334337NP_808306NP_001346742NP_001346743Crumbs protein homolog 3 is a protein that in humans is encoded by the CRB3 gene.

[5] This gene encodes a member of the Crumbs family of proteins.

This protein may play a role in epithelial cell polarity and is associated with tight junctions at the apical surface of epithelial cells.

Alternate transcriptional splice variants, encoding different isoforms, have been characterized.

[5] This article on a gene on human chromosome 19 is a stub.