Transformers: Is there a Prime that is also a Decepticon?

I just need to know, has there been a Prime which has also been a Decepticon, or at least turned into a Decepticon?Transformers: Is there a Prime that is also a Decepticon?The closest thing is Nemesis Prime, an Optimus Prime who was taken from his dimension by Unicron and kept prisoner and tortured within him for millions of years until he could no longer feel the distinction between joy and pain. He emerged a black Shadow of his former self, the Matrix he carried tainted by his dark persona.
He appeared in the Armada series

In Robots in Disguise there was a black Optimus Prime Decepticon who's stasis pod scanned an oil tanker truck and Optimus at the same time. The result was a dark Decepticon with the appearance, strength, and reverse personality of Optimus Prime, who became the leader of the Decepticons

There are Decepticons with an affinity for the Matrix, which can only be used by a Prime, like Thunderwing, Scourge, Starscream, but they do not count as they are DecepticonsTransformers: Is there a Prime that is also a Decepticon?on the movie transformers 2 there was a attack aircraft black (JetFire of the first麓s Prime麓s) that have the Decepticon insignia on the Smithsonian scene that he had switched sides so he was an AutobotTransformers: Is there a Prime that is also a Decepticon?No. All Primes are autobots. Sentinel prime in transformers 3 is just an autobot who made a deal with the decepticonsTransformers: Is there a Prime that is also a Decepticon?
the new guy in transformers 3 ended up being a decepticon

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