Immunopurification of rat brain Nav1.2 from control and seizure animals.
A, immunoblot analysis of Nav1.2 and Kv2.1 in control (C) and seizure (S) RBM samples (10 μg of protein/lane). B, solubilization of Nav1.2 in 1% Triton X-100 detergent extract. T, total RBM starting material; S, detergent-soluble fraction; I, detergent-insoluble fraction. C, immunoblot analysis of Nav1.2 IP. Input, 20 μg of protein; FT, flow-through fraction from immunopurification; IP, IP fraction. Fractions were each 10 μg of protein. D, colloidal Coomassie Blue staining of IP products from control and seizure brain. Nav, Nav channel band excised for analysis. Hspa5, IgG binding protein. mAb, mAb IgG heavy chain. Numbers to the left of panels refer to Mr standards.