An enzyme profile of the nuclear envelope.

摘要: Publisher Summary The nuclear membrane (NM) is a characteristic structure separating the nucleus from cytoplasm in all eukaryotic cells. In different tissues and organisms, of envelope (NE) surprisingly uniform. Its common features are outer inner NMs, perinuclear space between these membranes, rather large (60-70 nm diameter) pores usually surrounded by an annulus having octagonal symmetry. NMs interact morphologically functionally with cytoplasmic structures therefore can be regarded as part both cell system. cells intensive metabolism, NE has numerous invaginations protrusions that increase nucleocytoplasmic interface enhance interaction cytoplasm. such cells—silk gland cells, neurons, certain glandular, embryonal cells—rupture its especially outbursts blebs NM, usual, formation vesicles possibly membranes endoplasmic reticulum NM often observed, well annulate lamella-a counterpart structure.