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Modification post-traductionnelle

Une modification post-traductionnelle est une modification chimique d'une protéine, réalisée le plus souvent par une enzyme, après sa synthèse ou au cours de sa vie dans la cellule. Généralement cette modification entraîne un changement de la fonction de la protéine considérée, que ce soit au niveau de son action, de sa demi-vie, ou de sa localisation cellulaire.

Addition d'un groupe fonctionnel

[modifier | modifier le code]

Addition de groupes peptidiques ou de protéines

[modifier | modifier le code]

Changement de la nature chimique des acides aminés

[modifier | modifier le code]

Changements structuraux

[modifier | modifier le code]
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Modification post-traductionnelle
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