Editing Protein splicing (section)

===Naming conventions===
The first part of an intein name is based on the [[Binomial nomenclature|scientific name]] of the [[organism]] in which it is found, and the second part is based on the name of the corresponding gene or extein. For example, the intein found in ''[[Thermoplasma acidophilum]]'' and associated with Vacuolar ATPase subunit A (VMA) is called "Tac VMA".

Normally, as in this example, just three letters suffice to specify the organism, but there are variations. For example, additional letters may be added to indicate a strain. If more than one intein is encoded in the corresponding gene, the inteins are given a numerical suffix starting from [[Directionality (molecular biology)|5{{prime}} to 3{{prime}}]] or in order of their identification (for example, "Msm dnaB-1").

The segment of the gene that encodes the intein is usually given the same name as the intein, but to avoid confusion the name of the intein proper is usually capitalized (''e.g.'', Pfu RIR1-1), whereas the name of the corresponding gene segment is italicized (''e.g.'', Pfu ''rir1-1'').  A different disambiguating convention is to place a lowercase "i" after the source protein name, ''e.g.'' "Msm DnaBi1".<ref>{{cite journal |last1=Kelley |first1=Danielle S. |last2=Lennon |first2=Christopher W. |last3=Li |first3=Zhong |last4=Miller |first4=Michael R. |last5=Banavali |first5=Nilesh K. |last6=Li |first6=Hongmin |last7=Belfort |first7=Marlene |title=Mycobacterial DnaB helicase intein as oxidative stress sensor |journal=Nature Communications |date=19 October 2018 |volume=9 |issue=1 |page=4363 |doi=10.1038/s41467-018-06554-x|pmid=30341292 |pmc=6195587 |bibcode=2018NatCo...9.4363K |doi-access=free }}</ref>