The CDC45 antibody is a crucial tool in studying the role of Cell Division Cycle 45 (CDC45), a conserved protein essential for DNA replication and cell cycle progression. CDC45 forms part of the CMG (CDC45-MCM-GINS) helicase complex, which unwinds DNA during replication initiation in eukaryotes. It interacts with minichromosome maintenance (MCM) proteins and GINS components to ensure proper replication fork movement and genome stability.
Research using CDC45 antibodies has elucidated its involvement in cell cycle checkpoints, replication stress responses, and developmental processes. These antibodies enable detection of CDC45 expression levels, localization, and interactions via techniques like Western blot, immunofluorescence, and co-immunoprecipitation. Dysregulation of CDC45 is linked to diseases, particularly cancers, where its overexpression correlates with uncontrolled proliferation and poor prognosis in malignancies such as breast, liver, and colorectal cancer. Additionally, mutations in CDC45 are associated with developmental disorders like Meier-Gorlin syndrome.
Antibody specificity is validated using knockout cell lines or siRNA-mediated knockdown to confirm target recognition. Commercial CDC45 antibodies are typically raised against conserved epitopes in human, mouse, or rat homologs, with applications spanning basic research and clinical studies. Ongoing investigations focus on CDC45's potential as a biomarker or therapeutic target in oncology, emphasizing its critical role in replication licensing and cancer pathogenesis.