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The caveolin gene family. An alignment of the protein sequences of murine caveolin-1, -2, and -3 is shown. Identical residues are boxed and highlighted. Note that caveolin-1 and -3 are most closely related, while caveolin-2 is divergent. Translation initiation sites are circled. In addition, the positions of the membrane-spanning segment (green) and the oligomerization domain (purple) are indicated.
