Editing RNA splicing (section)

==Protein splicing==
{{Main|Protein splicing}}
In addition to RNA, proteins can undergo splicing. Although the biomolecular mechanisms are different, the principle is the same: parts of the protein, called [[intein]]s instead of introns, are removed. The remaining parts, called [[extein]]s instead of exons, are fused together.
Protein splicing has been observed in a wide range of organisms, including bacteria, [[archaea]], plants, yeast and humans.<ref>{{cite journal | vauthors = Hanada K, Yang JC | title = Novel biochemistry: post-translational protein splicing and other lessons from the school of antigen processing | journal = Journal of Molecular Medicine | volume = 83 | issue = 6 | pages = 420–428 | date = June 2005 | pmid = 15759099 | doi = 10.1007/s00109-005-0652-6 | s2cid = 37698110 | url = https://zenodo.org/record/1232581 }}</ref>