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31.
Background
Inteins are self-splicing protein elements. They are translated as inserts within host proteins that excise themselves and ligate the flanking portions of the host protein (exteins) with a peptide bond. They are encoded as in-frame insertions within the genes for the host proteins. Inteins are found in all three domains of life and in viruses, but have a very sporadic distribution. Only a small number of intein coding sequences have been identified in eukaryotic nuclear genes, and all of these are from ascomycete or basidiomycete fungi. 相似文献32.
Eelke van der Horst Julio E Peironcely Adriaan P IJzerman Margot W Beukers Jonathan R Lane Herman WT van Vlijmen Michael TM Emmerich Yasushi Okuno Andreas Bender 《BMC bioinformatics》2010,11(1):316