Figure 4. Sodium dodecyl sulfate PAGE (SDS-PAGE) and immunoblot analysis of connexin 46 and connexin 50 in lysate of whole lens. A: Electrophoretic pattern of proteins stained with Coomassie Brilliant Blue. B: Representative western blots for connexin 46 and connexin 50 (with β-actin as loading control) in lenses of 16-day-old Wistar rat pups. M-Marker; N- Group I (normal); S- Group II (selenite-challenged, cataract untreated); T- Group III (selenite-challenged, ALCAR-treated).