TY - JOUR AU1 - Larson, Austin AU2 - Baker, Peter AU3 - Milev, Miroslav AU4 - Press, Craig AU5 - Sokol, Ronald AU6 - Cox, Mary AU7 - Lekostaj, Jacqueline AU8 - Stence, Aaron AU9 - Bossler, Aaron AU1 - Mueller, Jennifer AU1 - Prematilake, Keshika AU1 - Tadjo, Thierry AU1 - Williams, Charles AU1 - Sacher, Michael AU1 - Moore, Steven AB - Background: Transport protein particle (TRAPP) is a supramolecular protein complex that functions in localizing proteins to the Golgi compartment. The TRAPPC11 subunit has been implicated in muscle disease by virtue of homozygous and compound heterozygous deleterious mutations being identified in individuals with limb girdle muscular dystrophy and congenital muscular dystrophy. It remains unclear how this protein leads to muscle disease. Furthermore, a role for this protein, or any other membrane trafficking protein, in the etiology of the dystroglycanopathy group of muscular dystrophies has yet to be found. Here, using a multidisciplinary approach including genetics, immunofluorescence, western blotting, and live cell analysis, we implicate both TRAPPC11 and another membrane trafficking protein, GOSR2, in α-dystroglycan hypoglycosylation. Case presentation: Subject 1 presented with severe epileptic episodes and subsequent developmental deterioration. Upon clinical evaluation she was found to have brain, eye, and liver abnormalities. Her serum aminotransferases and creatine kinase were abnormally high. Subjects 2 and 3 are siblings from a family unrelated to subject 1. Both siblings displayed hypotonia, muscle weakness, low muscle bulk, and elevated creatine kinase levels. Subject 3 also developed a seizure disorder. Muscle biopsies from subjects 1 and 3 were severely dystrophic with abnormal immunofluorescence and western blotting TI - TRAPPC11 and GOSR2 mutations associate with hypoglycosylation of α-dystroglycan and muscular dystrophy JF - Skeletal Muscle DO - 10.1186/s13395-018-0163-0 DA - 2018-05-31 UR - https://www.deepdyve.com/lp/springer-journals/trappc11-and-gosr2-mutations-associate-with-hypoglycosylation-of-h62RmQ9kaa SP - 1 EP - 10 VL - 8 IS - 1 DP - DeepDyve ER -