The upstream stimulatory factor USF1 is regulated by protein kinase CK2 phosphorylation.

Lupp S, Gotz C, Khadouma S, Horbach T, Dimova EY, Bohrer AM, Kietzmann T, Montenarh M
Cell Signal. 2014 Dec;26(12):2809-17. doi: 10.1016/j.cellsig.2014.08.028. Epub 2014 Sep 4. PubMed Article

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