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 inner membrane of the nucleus is the membrane which separates the nuclear matrix from the intermembrane space. In mammals, the inner nuclear membrane is associated with heterochromatin and the nuclear lamina.
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.
Involved in nuclear migration and anchoring in hypodermal precursor cells (PubMed:10375507, PubMed:11748140, PubMed:12169658, PubMed:11907270, PubMed:16481402, PubMed:20921138, PubMed:21411627, PubMed:23150597, PubMed:25023515, PubMed:25057012). Most likely recruits anc-1 to the nuclear envelope where anc-1 functions to tether the nucleus to the actin cytoskeleton (PubMed:12169658). Component of the unc-83-unc-84 LINC (LInker of Nucleoskeleton and Cytoskeleton) complex where it recruits and interacts with unc-83 to form a bridge connecting the nuclear envelope to the cytoskeleton which allows for nuclear transport along microtubules (PubMed:11748140, PubMed:16481402). Its role in nuclear migration may be in association with lamin, lmn-1 (PubMed:25057012). Regulates nuclear migrations in one-cell embryos, controlling the posterior migration of the male pronucleus following fertilization (PubMed:21798253). Not required for centrosome attachment to the nucleus (PubMed:10375507, PubMed:11907270). Plays a role in the maintenance of the nuclear envelope architecture in body wall muscle cells (PubMed:25023515). May be involved in DNA damage repair through an association with zyg-12 (PubMed:27956467). Potentially has roles in homologous recombination, double strand break repair and meiotic recombination (PubMed:27956467). Specifically, may in part inhibit non-homologous end joining repair, most likely through recruiting fan-1 to the nucleoplasm, to facilitate the repair of DNA cross-links (PubMed:27956467). {Experimental EvidencePubMed:10375507, Experimental EvidencePubMed:11748140, Experimental EvidencePubMed:11907270, Experimental EvidencePubMed:12169658, Experimental EvidencePubMed:16481402, Experimental EvidencePubMed:20921138, Experimental EvidencePubMed:21411627, Experimental EvidencePubMed:21798253, Experimental EvidencePubMed:23150597, Experimental EvidencePubMed:25023515, Experimental EvidencePubMed:25057012, Experimental EvidencePubMed:27956467}.
National and Kapodistrian University of Athens
Department of Biology
Biophysics & Bioinformatics Laboratory