Nuclear envelopes of Xenopus oocytes visualized by field emission in-lenS SEM
Nuclear envelopes of Xenopus oocytes visualized by field emission in-lens SEM
Cytoplasmic filament Central plug Cytoplasmic ring Spoke Outer nuclea membrane Nuclear Lumen envelope Inner nuclear Nuclear membrane ring Basket Nuclear basket filament Terminal ring Cut-away model of the NPc
Cut-away model of the NPC
Three-dimensional models of the npo A structure with eightfold symmetry The NPC consists of an assembly of eight spokes arranged around a central channel 4 The spokes are connected to rings at the nuclear and cvtoplasmic surfaces
Three-dimensional models of the NPC ❖ A structure with eightfold symmetry ❖ The NPC consists of an assembly of eight spokes arranged around a central channel ❖ The spokes are connected to rings at the nuclear and cytoplasmic surfaces
Electron micrograph of NPC
Electron micrograph of NPC
NLSs direct nuclear proteins to the nucleus The nuclear proteins are selective traffic across the nuclear envelope from the cytoplasm to the nucleus . The nlss include histones, DNA polymerases, RNA polymerases, transcription factors, splicing factors transport through NPC
NLSs direct nuclear proteins to the nucleus ❖The nuclear proteins are selective traffic across the nuclear envelope from the cytoplasm to the nucleus ❖The NLSs include histones, DNA polymerases, RNA polymerases, transcription factors, splicing factors transport through NPC