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. 1993 Jul;13(7):4125–4136. doi: 10.1128/mcb.13.7.4125

Cell cycle regulation of the c-Myc transcriptional activation domain.

A Seth 1, S Gupta 1, R J Davis 1
PMCID: PMC359962  PMID: 8321217

Abstract

The product of the c-myc gene (c-Myc) is a sequence-specific DNA-binding protein that has previously been demonstrated to be required for cell cycle progression. Here we report that the c-Myc DNA binding site confers cell cycle regulation to a reporter gene in Chinese hamster ovary cells. The observed transactivation was biphasic with a small increase in G1 and a marked increase during the S-to-G2/M transition of the cell cycle. This cell cycle regulation of transactivation potential is accounted for, in part, by regulatory phosphorylation of the c-Myc transactivation domain. Together, these data demonstrate that c-Myc may have an important role in the progression of cells through both the G1 and G2 phases of the cell cycle.

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Selected References

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