Editing Gene expression (section)

===RNA export===
{{main|Nuclear transport}}
In eukaryotes most mature RNA must be exported to the cytoplasm from the [[cell nucleus|nucleus]]. While some RNAs function in the nucleus, many RNAs are transported through the [[nuclear pore]]s and into the [[cytosol]].<ref name="K2007">{{cite journal | vauthors = Köhler A, Hurt E | title = Exporting RNA from the nucleus to the cytoplasm | journal = Nature Reviews. Molecular Cell Biology | volume = 8 | issue = 10 | pages = 761–773 | date = October 2007 | pmid = 17786152 | doi = 10.1038/nrm2255 | s2cid = 10836137 }}</ref> Export of RNAs requires association with specific proteins known as exportins. Specific exportin molecules are responsible for the export of a given RNA type. mRNA transport also requires the correct association with [[Exon junction complex|Exon Junction Complex]] (EJC), which ensures that correct processing of the mRNA is completed before export. In some cases RNAs are additionally transported to a specific part of the cytoplasm, such as a [[synapse]]; they are then towed by [[motor protein]]s that bind through linker proteins to specific sequences (called "zipcodes") on the RNA.<ref name="Jambhekar2007">{{cite journal | vauthors = Jambhekar A, Derisi JL | title = Cis-acting determinants of asymmetric, cytoplasmic RNA transport | journal = RNA | volume = 13 | issue = 5 | pages = 625–642 | date = May 2007 | pmid = 17449729 | pmc = 1852811 | doi = 10.1261/rna.262607 }}</ref>