Defective autophagy in a fibroin secretion-deficient silkworm mutant

: naked pupa; OSBPL2: oxysterol binding protein like 2; PD: Parkinson disease; PE: phosphatidylethanolamine; p-EIF4EBP: phosphorylated eukaryotic initiation factor 4E binding protein; PROM1: prominin 1; p-RPS6KB: phosphorylated ribosomal protein S6 kinase B; PSEN: presenilin; PSG: posterior silk gland; SDS-PAGE: sodium dodecyl sulfate-polyacrylamide gel electrophoresis; SEM: standard error of the mean; SOD1: superoxide dismutase 1; SQSTM1/p62: sequestosome 1; TARDBP: TAR DNA binding protein; TORC1: target of rapamycin complex 1; UBQLN2: ubiquilin 2; V-ATPase: vacuolar-type ATPase.