Immunostaining for dystrophin and laminin α2 surrogates in GALGT2-overexpressing FKRP P448Lneo− muscle. FKRP P448Lneo− muscles (gastroc) were injected with rAAVrh74.MCK.GALGT2 and analyzed at 3 months after injection. Cross-sections of muscle were immunostained with antibodies to the indicated proteins (red) and counterstained with WFA (green). Nuclei are stained with Hoechst 33342 (blue). Scale bar = 50 μm. GALGT2, β-1,4 N-acetylgalactosaminyltransferase 2; gastroc, gastrocnemius; MCK, muscle creatine kinase; rAAV, recombinant adeno-associated virus; WFA, Wisteria floribunda agglutinin.