Definition of intein in English:

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Pronunciation: /ˈɪntiːn/

Entry from British & World English dictionary


An internal segment of amino acids that is excised from a protein precursor to generate a new protein.
Example sentences
  • Intein excision depends on the splicing domain of the intein and the first amino acid residue of the C-extein.
  • It encodes a bifunctional protein with two domains, a homing endonuclease and a self-splicing intein.
  • The MSI group takes the molecule of interest - say, a protein ligand - and attaches an intein to it.


1990s: from internal + protein.

For editors and proofreaders

Line breaks: in¦tein

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