XIST – Wikipedia
https://en.wikipedia.org/wiki/XIST
also XIC
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Xist (X-inactive specific transcript) is an RNA gene on the X chromosome of the placental mammals that acts as a major effector of the X inactivation process.[4] It is a component of the Xic – X-chromosome inactivation centre[5] – along with two other RNA genes (Jpx and Ftx) and two protein genes (Tsx and Cnbp2).[6]
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