FBLN2 and keratosis pilaris: Western blotting of fibulin-2 in KP cells revealed two bands with molecular weights of approximately 190 kD and 150 kD; by densitometric analysis, the larger band was more abundant in metastatic KP cell lines (344SQ, 531LN2, 531LN3, and 344P) than it was in non-metastatic KP cell lines (307P, 393P, and 412P) (Figure 2B).