title: A periodic ultrastructure in intermediate filaments.
mesh_terms: D000818:Animals; D003594:Cytoplasmic Granules / Q000648:ultrastructure*; D003893:Desmin; D007633:Keratins / Q000032:analysis*; D008854:Microscopy, Electron; D008970:Molecular Weight; D009124:Muscle Proteins / Q000032:analysis*; D012867:Skin / Q000648:ultrastructure
chemical_list: D003893:Desmin; D009124:Muscle Proteins; D007633:Keratins