medical Definition of catenin
- Vascular-endothelium cadherins are coupled intracellularly to catenins, a family of proteins that form signaling complexes with downstream kinases and phosphatases.
- —Ralph L. Nachman et al., The New England Journal of Medicine, 18 Sept. 2008
- Beta-catenin normally helps to form junctions with neighboring cells.
- —Ricki L. Rusting, Scientific American, June 2001