Western blot analyses of JP1, BIN1, MG29, and CAV3 in WT and CASQ1-null mice during development. (A–D) Representative immunoblots showing expression levels of JP1 and BIN1 in EDL muscle homogenates from WT and CASQ1-null mice during development (from 1 week to 4 months of age). (C,D) Expression levels of MG29 and CAV3 in EDL muscle homogenates from WT and CASQ1-null mice at 4 months of age. Data are expressed relative to WT EDL muscles at 1 week of age (A,B) and to WT EDL muscles at 4 months of age (C,D). Data are shown as mean ± SEM; * p < 0.05. n = 6 muscles from 6 different mice for each group.