title: Nuclear pores. Can they expand and contrast to regulate nucleocytoplasmic exchange?
abstract: Recent evidence has revived the idea that translocations of macromolecules between nucleus and cytoplasm may be regulated via expansion and contraction of the entire diameter of the nuclear pore complex. The present investigation does not support this hypothesis.
mesh_terms: D003593:Cytoplasm / Q000648:ultrastructure; D005614:Freeze Fracturing; D046911:Macromolecular Substances; D009685:Nuclear Envelope / Q000502:physiology* / Q000648:ultrastructure; D012441:Saccharomyces cerevisiae / Q000648:ultrastructure
chemical_list: D046911:Macromolecular Substances