exteins
Polypeptide sequences of precursor self-splicing proteins that are joined together during formation of the final, functional protein. They are separated from one another by intein sequences, which they flank.

Microbiology. . 2009.

Look at other dictionaries:

  • RNA splicing — In molecular biology and genetics, splicing is a modification of an RNA after transcription, in which introns are removed and exons are joined. This is needed for the typical eukaryotic messenger RNA before it can be used to produce a correct… …   Wikipedia

  • Intein — An intein is a segment of a protein that is able to excise itself and rejoin the remaining portions (the exteins) with a peptide bond. Inteins have also been called protein introns . [cite journal |author=Anraku Y, Mizutani R, Satow Y… …   Wikipedia

  • inteins — Internal intervening sequences of precursor self splicing proteins that separate exteins and are removed during formation of the final protein …   Dictionary of microbiology

  • protein splicing — The post translational process in which part of a precursor polypeptide is removed before the mature polypeptide folds into its final shape; it is carried out by self splicing proteins that remove inteins and join the remaining exteins …   Dictionary of microbiology

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