Referring to events that occur after translation.
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post·trans·la·tion·al -tran(t)s-'lā-shnəl, -shən-əl adj occurring or existing after genetic translation <\posttranslational modification of a molecule>
post·trans·la·tion·al·ly -ē adv
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post·trans·la·tion·al (pōst-trans-laґshən-əl) occurring following translation (def. 2), used of modifications to protein structure that take place after synthesis.Medical dictionary. 2011.