Nucleocytoplasmic transport occurs through nuclear pore complexes (NPCs), which are enormous macromolecular assemblies embedded in the nuclear envelope ... nuclear pre-60S ribosome before nuclear ...

Ribosomes are highly complex ... This maturation process continues in the cytoplasm after they pass across the nuclear envelope via the nuclear pore complexes (NPC). In the cytoplasm, the ...

ribosome subunits and viruses in a bidirectional manner. Molecules smaller than ∼40 kDa can pass freely across the nuclear envelope and do not require passage through the NPC. Molecules >40 ...

During mitosis, however, the nuclear envelope disassembles, allowing large cytoplasmic components such as ribosomes to mix with nuclear material. When the nuclear envelope reassembles following ...