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80 kDa MCM3-associated protein is a protein that in humans is encoded by the MCM3APgene.
Function
The minichromosome maintenance protein 3 (MCM3) is one of the MCM proteins essential for the initiation of DNA replication. The protein encoded by this gene is an MCM3 binding protein. It was reported to have phosphorylation-dependent DNA-primase activity, which was up-regulated in antigenimmunization induced germinal center. This protein was demonstrated to be an acetyltransferase that acetylates MCM3 and plays a role in DNA replication. The mutagenesis of a nuclear localization signal of MCM3 affects the binding of this protein with MCM3, suggesting that this protein may also facilitate MCM3 nuclear localization.
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Kuwahara K, Yoshida M, Kondo E, Sakata A, Watanabe Y, Abe E, Kouno Y, Tomiyasu S, Fujimura S, Tokuhisa T, Kimura H, Ezaki T, Sakaguchi N (2000). "A novel nuclear phosphoprotein, GANP, is up-regulated in centrocytes of the germinal center and associated with MCM3, a protein essential for DNA replication". Blood. 95 (7): 2321–8. doi:10.1182/blood.V95.7.2321. PMID10733502.
Abe E, Kuwahara K, Yoshida M, Suzuki M, Terasaki H, Matsuo Y, Takahashi EI, Sakaguchi N (2000). "Structure, expression, and chromosomal localization of the human gene encoding a germinal center-associated nuclear protein (GANP) that associates with MCM3 involved in the initiation of DNA replication". Gene. 255 (2): 219–27. doi:10.1016/S0378-1119(00)00336-X. PMID11024281.