Fig 1: Nogo-A interacts selectively with Apg-1 under endogenous conditions(A) Co-immunoprecipitation experiments with endogenously expressed RTN4-A/Nogo-A, RTN1-A and Apg-1 using mouse brain lysate. (B) Co-immunoprecipitation experiments with endogenously expressed Nogo-A, Hsp105 (A), and Apg-2 (B) using mouse brain lysate. A portion (10%) of the brain lysate that was used for co-immunoprecipitations serves as an immunoblotting control. IP, immunoprecipitation; rb, rabbit; WB, Western blot.