Medical Definition of Cis acting
1.
Having to do with a genetic element (such as a promoter or other regulatory locus) having an effect (like promotion or suppression) on two unrelated targets (such as genes) on the same chromosome as a result of their relative positions on the chromosome.
A gene which regulates the transcription into mRNA of other genes nearby on the same chromosome by binding protein transcription factors which are necessary to turn transcription on or off.
(09 Oct 1997)
Lexicographical Neighbors of Cis Acting
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