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- Tel: 858.663.9055
- Email: info@nsjbio.com
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Minichromosome maintenance complex component 7 (MCM7) is a highly conserved nuclear protein encoded by the MCM7 gene and is a core member of the minichromosome maintenance (MCM) helicase complex that drives eukaryotic DNA replication. MCM7 Antibody for IF is designed to visualize this essential replication factor using immunofluorescence microscopy, enabling researchers to examine nuclear distribution patterns associated with cell cycle progression and proliferative activity. The MCM2-7 complex forms a hexameric helicase that unwinds double-stranded DNA at replication origins, allowing replication forks to form and progress during S phase.
Within the nucleus, MCM7 associates with other members of the MCM protein family including MCM2, MCM3, MCM4, MCM5, and MCM6 to assemble the functional replicative helicase. The protein is frequently described in the literature as CDC47 or P1-MCM3 and is commonly referred to as a DNA replication licensing factor because of its role in preparing chromosomal origins for DNA synthesis. During the G1 phase of the cell cycle, MCM complexes are loaded onto chromatin as part of the pre-replication complex. Once DNA synthesis begins, the helicase activity of the MCM2-7 complex enables the separation of DNA strands, ensuring accurate genome duplication.
Immunofluorescence analysis of MCM7 provides a powerful approach for visualizing proliferative cell populations because the protein is strongly expressed in actively cycling cells but reduced in quiescent or terminally differentiated cells. A rabbit polyclonal MCM7 Antibody for IF allows clear visualization of nuclear MCM7 distribution in cultured cells or tissue sections, where staining typically appears as punctate or diffuse nuclear fluorescence corresponding to chromatin-associated replication complexes. This nuclear localization pattern makes immunofluorescence particularly useful for studying replication licensing, replication fork formation, and cell cycle dynamics.
MCM7 expression is tightly linked to cellular proliferation and has therefore been investigated extensively as a biomarker of cell division in both normal tissues and malignancies. Elevated levels of the protein have been reported in numerous tumor types including breast cancer, colorectal cancer, lung cancer, and lymphoid malignancies, reflecting the increased DNA replication activity characteristic of rapidly dividing tumor cells. Because immunofluorescence can resolve subcellular localization with high spatial precision, researchers frequently use an MCM7 Antibody for IF to examine nuclear replication foci and to correlate replication licensing with other cell cycle markers.
At the molecular level, MCM7 contains conserved helicase domains belonging to the AAA+ ATPase family, which provide the energy required for DNA strand separation during replication. These domains enable ATP binding and hydrolysis, processes that drive conformational changes within the MCM helicase ring as it translocates along DNA. Through these activities, the protein contributes to the maintenance of genomic stability and accurate chromosome duplication. Dysregulation of MCM7 expression or function can disrupt replication control mechanisms and has been associated with oncogenic transformation and abnormal cell cycle regulation.
Because of its nuclear localization and strong association with proliferating cells, immunofluorescence studies using a rabbit polyclonal antibody targeting MCM7 are widely applied to visualize DNA replication machinery, identify actively cycling cells, and investigate replication licensing mechanisms in cell biology and cancer research models.
Variations in secondary/substrate sensitivities and test protocols may require the MCM7 antibody for IF to be titrated for optimal performance.
Human partial recombinant protein (AA 526-719) was used as the immunogen for this MCM7 antibody.
The lyophilized MCM7 antibody can be stored at 4oC to -20oC. After reconstitution, aliquot and store at -20oC. Avoid repeated freeze/thaws.
CDC47 antibody, P1-MCM3 antibody, DNA replication licensing factor MCM7 antibody, Minichromosome maintenance protein 7 antibody, MCM7 replication factor antibody
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