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.gov website belongs to an official
government organization in the United States.
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The nag2 operon was of a mosaic-type pattern. The gray scale of individual genes within the nag2 operon indicates % similarity to nag-U2 (black) or nag-CJ2 (white). The numbers beneath the nag2 operon indicates the % similarity to nag-U2/nag-CJ2/neither.
