psf-1 Antibody
Description
Introduction to PSF1 Antibody
The PSF1 antibody is a research tool designed to detect and study Partner of SLD Five 1 (PSF1), a protein encoded by the GINS1 gene in humans. PSF1 is a critical subunit of the GINS complex, a heterotetrameric assembly (PSF1, PSF2, PSF3, SLD5) essential for DNA replication initiation and fork progression . This antibody is widely used in molecular biology and oncology to investigate PSF1's role in cellular proliferation, cancer biology, and stem cell regulation.
Research Applications
PSF1 antibodies are utilized in diverse experimental workflows:
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Western Blot (WB): Detects PSF1 in lysates from cancer cell lines (e.g., leukemia) .
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Immunohistochemistry (IHC): Localizes PSF1 in spermatogonia and tumor microenvironments .
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Immunoprecipitation (IP): Identifies PSF1 interaction partners (e.g., p54nrb) .
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Flow Cytometry: Quantifies PSF1 expression in hematopoietic stem cells .
Clinical and Therapeutic Implications
Cancer Research
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Drug Resistance: High PSF1 expression in leukemia cells correlates with chemoresistance and proximity to vascular niches .
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Cancer Vaccines: PSF1-derived peptide (YLYDRLLRI) induces cytotoxic T lymphocyte responses in HLA-A*02:01 contexts, suggesting immunotherapy potential .
Recent Research Findings
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Embryogenesis: PSF1 is indispensable for blastocyst development; knockout models show ICM proliferation failure .
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Cancer Stem Cells (CSCs): PSF1 is enriched in CSCs, linking it to tumor recurrence and metastasis .
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Post-Transcriptional Regulation: PSF1 binds HIV-1 mRNA instability elements (INS), modulating viral gene expression .
