Nearly all patients had detectable AChR antibodies, but no MuSK (MG patients have antibodies against the muscle‐specific kinase, MuSK) or LRP4 (MG patients have antibodies against the agrin receptor low‐density lipoprotein receptor‐related protein 4, LRP4), similar to studies about TAMG.6 This evidence concerns the gene MUSK and myasthenia gravis.