A Scientist Asks

A question posed to a geneontology mailing list:

The following are listed as Synonyms:

protein ubiquitination
protein ubiquitinylation
protein ubiquitylation

Is one preferred or more correct?

Now, I don't know anything about proteins, but surely all three must have their merits as fun words to drop occasionally into a conversation.

I wouldn't mind seeing them all the time, all over the place—even ubiquitinationally.

I did get this piece of marketing in the mail though, which might help settle the question asked: