References
PMID:22671595
Caveolin-1 is an endocytic scaffolding protein
It binds independently to claudin-2 and occludin (co-immunoprecipitation assays).
The finding that caveolin-1 interacts with claudin-2 and occludin, but notwith claudin-4 or ZO-1, suggests a potential mechanism for selective retrieval of tight junction components.