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Gene ontology
Version 2014-12-22
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Details for post-translational protein modification
Gene ontology ID
GO:0043687
Definition
The process of covalently altering one or more amino acids in a protein after the protein has been completely translated and released from the ribosome
Comment
This term should only be used to annotate a protein modification process that occurs after the protein has been released from the ribosome, and is therefore strictly post-translational. Modification of a free protein (one not attached to a ribosome) and modification of a C-terminal residue are post-translational processes. Some protein modifications occur while the protein is still in the ribosome but before translation has been completed; these modification processes are considered co-translational and should not be annotated using this term.
Synonyms
1. post-translational amino acid modification
2. post-translational modification
3. posttranslational amino acid modification
4. posttranslational modification
5. posttranslational protein modification
6. PTM
References
1. GOC: jsg
2. Wikipedia: Posttranslational modification
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