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MCM4 minichromosome maintenance complex component 4

Gene ID: 4173, updated on 4-Jan-2025
Gene type: protein coding
Also known as: NKCD; CDC21; CDC54; IMD54; NKGCD; hCdc21; P1-CDC21

Summary

The protein encoded by this gene is one of the highly conserved mini-chromosome maintenance proteins (MCM) that are essential for the initiation of eukaryotic genome replication. The hexameric protein complex formed by MCM proteins is a key component of the pre-replication complex (pre_RC) and may be involved in the formation of replication forks and in the recruitment of other DNA replication related proteins. The MCM complex consisting of this protein and MCM2, 6 and 7 proteins possesses DNA helicase activity, and may act as a DNA unwinding enzyme. The phosphorylation of this protein by CDC2 kinase reduces the DNA helicase activity and chromatin binding of the MCM complex. This gene is mapped to a region on the chromosome 8 head-to-head next to the PRKDC/DNA-PK, a DNA-activated protein kinase involved in the repair of DNA double-strand breaks. Alternatively spliced transcript variants encoding the same protein have been reported. [provided by RefSeq, Jul 2008]

Genomic context

Location:
8q11.21
Sequence:
Chromosome: 8; NC_000008.11 (47960941..47978160)
Total number of exons:
16

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