Nucleus membrane {Experimental EvidencePubMed:22863006}; Multi-pass membrane protein {Experimental EvidencePubMed:22863006}. Note=During metaphase, localizes near the mitotic spindle region, and its localization shifts to the chromosomes as they reach the end of the spindle. During karyomere fusion, detected in prominent puncta, mainly at karyomere-karyomere interfaces corresponding to putative fusion sites.
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.