nuclear protein

File:Diagram_of_nuclear_uptake_of_protein.jpg

A nuclear protein is a protein found in the cell nucleus.{{Cite web|url=https://meshb.nlm.nih.gov/record/ui?name=Nuclear%20Proteins|title=MeSH Browser|website=meshb.nlm.nih.gov|access-date=2019-05-12}} Proteins are transported inside the nucleus with the help of the nuclear pore complex, which acts a barrier between cytoplasm and nuclear membrane. The import and export of proteins through the nuclear pore complex plays a fundamental role in gene regulation and other biological functions.{{cite journal | vauthors = Freitas N, Cunha C | title = Mechanisms and signals for the nuclear import of proteins | journal = Current Genomics | volume = 10 | issue = 8 | pages = 550–7 | date = December 2009 | pmid = 20514217 | pmc = 2817886 | doi = 10.2174/138920209789503941 }}{{cite journal | vauthors = Jühlen R, Fahrenkrog B | title = Moonlighting nuclear pore proteins: tissue-specific nucleoporin function in health and disease | journal = Histochemistry and Cell Biology | volume = 150 | issue = 6 | pages = 593–605 | date = December 2018 | pmid = 30361777 | doi = 10.1007/s00418-018-1748-8 | s2cid = 53030528 }}