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Email: info@nsjbio.com
- Tel: 858.663.9055
- Email: info@nsjbio.com
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MCM5 Antibody recognizes Minichromosome maintenance complex component 5, a nuclear DNA replication licensing factor encoded by the MCM5 gene and a core subunit of the MCM2-7 helicase complex. Minichromosome maintenance complex component 5 antibody, also widely referred to as MCM5 antibody and MCM complex protein 5 antibody in cell cycle research, detects a protein essential for initiation and progression of DNA replication. As part of the heterohexameric MCM complex, MCM5 participates in unwinding double-stranded DNA at replication origins, enabling recruitment of replication machinery and S phase entry.
MCM5 is localized predominantly in the nucleus of actively proliferating cells, where it assembles with MCM2, MCM3, MCM4, MCM6, and MCM7 to form the functional replicative helicase. During G1 phase, the MCM complex is loaded onto chromatin to license replication origins. Activation by cyclin-dependent kinases and DDK converts the complex into an active helicase that drives replication fork progression. Because MCM5 is expressed in cells that are licensed for replication but absent in quiescent G0 cells, MCM5 antibody serves as a sensitive marker of proliferative capacity and cell cycle engagement.
In normal tissues, MCM5 expression is typically restricted to basal epithelial compartments, germinal centers, and other progenitor cell populations undergoing active division. Differentiated and terminally specialized cells show little to no nuclear staining. In tumor pathology, elevated MCM5 expression has been documented in a broad range of malignancies including colorectal carcinoma, breast carcinoma, lung cancer, prostate cancer, and hematologic neoplasms. Increased nuclear labeling with MCM5 antibody correlates with higher proliferative index and aggressive tumor behavior, supporting its use as a proliferation-associated marker.
Functionally, Minichromosome maintenance complex component 5 is critical for maintaining genomic stability by ensuring that DNA replication occurs once per cell cycle. Dysregulation of replication licensing proteins such as MCM5 can contribute to replication stress and chromosomal instability, hallmarks of oncogenesis. MCM5 Antibody (clone 4G10) is designed to detect endogenous MCM5 protein in research applications and produces distinct nuclear staining in actively cycling cells. By targeting a key DNA replication licensing factor, this antibody supports studies of cell cycle regulation, tumor growth kinetics, and replication control mechanisms across diverse tissue types.
Optimal dilution of the MCM5 antibody should be determined by the researcher.
A human recombinant partial protein (amino acids K206-H723) was used as the immunogen for the MCM5 antibody.
After reconstitution, the MCM5 antibody can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.
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