De inre fragmenten hos proteinförelöpare (INternal proTEINS), vilka avlägsnas genom autokatalys vid proteinsplitsning. De flankerande fragmenten (exteiner) binds och bildar mogna proteiner. De nukleinsyrasekvenser som kodar för inteiner anses vara rörliga genelement. Inteiner består av självsplitsande domäner och en endonukleasdomän som har betydelse för spridningen av inteinets genomsekvens. Miniinteiner består bara av de självsplitsande domänerna.
The internal fragments of precursor proteins (INternal proTEINS) that are autocatalytically removed by PROTEIN SPLICING. The flanking fragments (EXTEINS) are ligated forming mature proteins. The nucleic acid sequences coding for inteins are considered to be MOBILE GENETIC ELEMENTS. Inteins are composed of self-splicing domains and an endonuclease domain which plays a role in the spread of the intein's genomic sequence. Mini-inteins are composed of the self-splicing domains only.
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Intein — Protein Introns — Intervening Protein Sequence — Intervening Protein Sequences — Protein Sequence, Intervening — Protein Sequences, Intervening — Sequence, Intervening Protein — Sequences, Intervening Protein — Introns, Protein — Intron, Protein — Protein Intron