title: On the octagonality of the nuclear pore complex.
mesh_terms: D002460:Cell Line; D002467:Cell Nucleus / Q000032:analysis; D002843:Chromatin / Q000032:analysis; D003593:Cytoplasm; D005613:Freeze Etching; D006570:Heterochromatin / Q000032:analysis; D006651:Histocytochemistry; D006652:Histological Techniques; D006801:Humans; D008545:Melanoma; D008722:Methods; D008854:Microscopy, Electron; D008867:Microtomy; D012270:Ribosomes
chemical_list: D002843:Chromatin; D006570:Heterochromatin