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From Biology-Online Dictionary | Biology-Online Dictionary
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(Science: oncogene) oncogene from an avian sarcoma retrovirus found in chickens carriers, and which causes fibrosarcoma tumours.

The normal product of the proto-oncogene is transcription regulation factor AP-1, which is formed by dimerisation with fos via a zipper motif.

The product of the oncogene causes abnormal gene transcription rates.