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commented
12 years ago MOD:01894 is the parent term, with no formula, Origin "X", and no Term Spec. It properly has the Dbxref UniMod:58. MOD:00451 is a child term for a propanoylated alpha-amino residue. It incorrectly had Dbxref UniMod:58 without "site". that has been corrected. MOD:01398 is a child term for N6-propanoyllysine. The Dbxref for UniMod:58 "site" has been added. UniMod:58 also has a third child for what is presumably an O3-propanoylserine. That has not been reported as a natural modification. Nor is it mentioned in any of the three citations. Of those three citations Source PMID:12175151 and PMID:11999733 do not mention propanoylation of any type. I would have added a new child for the serine but I could not find any evidence for it.
Original comment by: jsgaravelli
Entries MOD:00451 and MOD:01894 maybe are duplicated. If they're not duplicated, the unimod mapping to the more concrete term (MOD:00451) should be deleted.
Reported by: dovelleiro