Nucleus, nuclear pore complex. Nucleus membrane {By
SimilarityUniProtKB:O08587}; Peripheral membrane protein {By
SimilarityUniProtKB:O08587}; Nucleoplasmic side {By
SimilarityUniProtKB:O08587}. Note=Localizes to the nucleoplasmic fibrils of the nuclear pore complex. Dissociates from the NPC structure early during prophase of mitosis. Associates with the newly formed nuclear membrane during telophase. In the testis, the localization changes during germ cell differentiation from the nuclear surface in spermatocytes to the whole nucleus (interior) in spermatids and back to the nuclear surface in spermatozoa. {By
SimilarityUniProtKB:O08587, ECO:0000250|UniProtKB:Q9UKX7}.
The nuclear envelope is a membrane system which surrounds the nucleoplasm of eukaryotic cells. It is composed of the nuclear lamina, nuclear pore complexes and two nuclear membranes. The space between the two membranes is called the nuclear intermembrane space.
The membrane surrounding the nucleus. This term is used when it is not known if the protein is found in or associated with the inner or outer nuclear membrane.
The nuclear pore complex (NPC) constitutes the exclusive means of nucleocytoplasmic transport. NPCs allow the passive diffusion of ions and small molecules and the active bidirectional transport of macromolecules such as proteins, RNAs etc across the double-membrane nuclear envelope.The NPC is composed of at least 30 distinct subunits known as Nucleoporins (NUPs).
Component of the nuclear pore complex that has a direct role in nuclear protein import (PubMed:10811608). Actively displaces NLSs from importin-alpha, and facilitates disassembly of the importin- alpha:beta-cargo complex and importin recycling (PubMed:16222336). Interacts with regulatory proteins of cell cycle progression including CDKN1B (PubMed:10891500, PubMed:10811608). This interaction is required for correct intracellular transport and degradation of CDKN1B (PubMed:10811608). {Experimental EvidencePubMed:10811608, Experimental EvidencePubMed:10891500, Experimental EvidencePubMed:16222336}.
National and Kapodistrian University of Athens
Department of Biology
Biophysics & Bioinformatics Laboratory