Aliases for MCM4 Gene
External Ids for MCM4 Gene
Previous HGNC Symbols for MCM4 Gene
Previous GeneCards Identifiers for MCM4 Gene
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]
GeneCards Summary for MCM4 Gene
MCM4 (Minichromosome Maintenance Complex Component 4) is a Protein Coding gene. Diseases associated with MCM4 include primary immunodeficiency with natural-killer cell deficiency and adrenal insufficiency and natural killer cell and glucocorticoid deficiency with dna repair defect. Among its related pathways are Cell Cycle, Mitotic and DNA Damage. GO annotations related to this gene include ATPase activity and ATP-dependent DNA helicase activity. An important paralog of this gene is MCM8.
UniProtKB/Swiss-Prot for MCM4 Gene
Acts as component of the MCM2-7 complex (MCM complex) which is the putative replicative helicase essential for once per cell cycle DNA replication initiation and elongation in eukaryotic cells. The active ATPase sites in the MCM2-7 ring are formed through the interaction surfaces of two neighboring subunits such that a critical structure of a conserved arginine finger motif is provided in trans relative to the ATP-binding site of the Walker A box of the adjacent subunit. The six ATPase active sites, however, are likely to contribute differentially to the complex helicase activity.