2. Signaling Pathways
  3. Cell Cycle/DNA Damage
  4. RAD51

RAD51

RAD51

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RAD51, an essential eukaryotic DNA recombinase, promotes homologous pairing and strand exchange during homologous recombination (HR) and the recombinational repair of double strand breaks. RAD51 protein is recruited onto the DNA break by BRCA2 and forms homopolymeric filaments that invade the homologous chromatid and use it as a template for repair. RAD51 filaments are detectable by immunofluorescence as distinct foci in the cell nucleus, and their presence is a read out of HR proficiency. RAD51 is an essential gene, protecting cells from genetic instability.

RAD51 recombinase activity plays a critical role for cancer cell proliferation and survival, and often contributes to drug-resistance. Abnormally elevated RAD51 function and hyperactive homologous recombination (HR) rates have been found in a panel of cancers, including breast cancer and chronic myeloid leukaemia (CML). Directly targeting RAD51 and attenuating the deregulated RAD51 activity has therefore been proposed as an alternative and supplementary strategy for cancer treatment.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-D0086
    DIDS sodium salt
    		Inhibitor 99.13%
    DIDS sodium salt (MDL101114ZA) is a dual inhibitor of ABCA1 and VDAC1. DIDS also inhibits RAD51, inhibiting RAD51-mediated homologous pairing and strand exchange reactions. DIDS inhibits anion exchange and binding to red blood cell membranes, inhibits the activation of caspase-3 and -9, and can be used in cancer research.
    DIDS sodium salt
  • HY-101462
    RAD51 Inhibitor B02
    		Inhibitor 99.91%
    RAD51 Inhibitor B02 (B02) is an inhibitor of human RAD51 with an IC50 of 27.4 μM.
    RAD51 Inhibitor B02
  • HY-19793
    RS-1
    		Activator 98.95%
    RS-1 is a RAD51 activator, and also increases CRISPR/Cas9-mediated knock-in efficiencies.
    RS-1
  • HY-15317
    RI-1
    		Inhibitor 99.83%
    RI-1 is a RAD51 inhibitor, with IC50s ranging from 5 to 30 μM. RI-1 binds covalently to the surface of RAD51 protein at cysteine 319. RI-1 inactivates RAD51 by directly binding to a protein surface that serves as an interface between protein subunits in RAD51 filaments. RI-1 can disrupt homologous recombination in human cells.
    RI-1
  • HY-103710
    IBR2
    		Inhibitor 98.34%
    IBR2 is a potent and specific RAD51 inhibitor and inhibits RAD51-mediated DNA double-strand break repair. IBR2 disrupts RAD51 multimerization, accelerates proteasome-mediated RAD51 protein degradation, inhibits cancer cell growth and induces apoptosis.
    IBR2
  • HY-N3980R
    Guaiol (Standard)
    Guaiol (Standard) is the analytical standard of Guaiol. This product is intended for research and analytical applications. Guaiol is a sesquiterpenoid alcohol with oral activity found in various traditional Chinese medicines, exhibiting biological activities such as anti-proliferative, autophagy-promoting, insecticidal, anti-anxiety, anti-inflammatory, diuretic, and blood pressure-lowering effects. Guaiol induces apoptosis in non-small cell lung cancer cells by regulating the stability of RAD51 through autophagy modulation. Guaiol can also act directly on parasites, inhibiting their growth by affecting the kinetoplast, mitochondrial matrix and plasma membrane of the promastigotes. Guaiol kills amastigotes at an IC50 of 0.01 µg/mL. Guaiol can be used in research related to cancer, infections, cardiovascular diseases, and inflammatory conditions[4]
    Guaiol (Standard)
  • HY-P10516
    BRC4 peptide
    BRC4 peptide is a specific peptide in BRCA2 protein that interacts with RAD51 protein to help repair broken DNA chains. BRC4 peptide can be used to study DNA repair mechanisms and cancer occurrence.
    BRC4 peptide
  • HY-126972
    RI(dl)-2
    		Inhibitor
    RI(dl)-2 blocks RAD51’s D-loop activity in biochemical systems with an IC50 value of 11.1 µM and inhibits homologous recombination (HR) activity with an IC50 value of 3.0 µM. RI(dl)-2 inhibits HR-mediated repair of DNA double strand breaks and sensitizes different cancer cell lines.
    RI(dl)-2
  • HY-150147
    CAM833
    		Inhibitor 99.79%
    CAM833 is a potent orthosteric inhibitor of the interaction between BRCA2 and RAD51 with a Kd of 366 nM against the ChimRAD51 protein. CAM833 also inhibits RAD51 oligomerization. CAM833 increases the progression of G2/M-arrested cells into apoptosis.
    CAM833
  • HY-126020
    Bractoppin
    		Inhibitor 99.70%
    Bractoppin is a potent and selective agent-like inhibitor of phosphopeptide recognition by the human BRCA1 tandem(t) BRCT domain (binding IC50: 74 nM). Bractoppin diminishes BRCA1 recruitment to DNA breaks, in turn suppressing damage-induced G2 arrest and assembly of the recombinase, RAD51. Bractoppin preferentially inhibits BRCA1 tBRCT-dependent steps in the DNA damage response.
    Bractoppin
  • HY-10206
    Amuvatinib
    		Inhibitor 99.47%
    Amuvatinib (MP470) is an orally bioavailable multi-targeted tyrosine kinase inhibitor with potent activity against mutant c-Kit, PDGFRα, Flt3, c-Met and c-Ret. Amuvatinib (MP470) is also a DNA repair suppressor through suppression of DNA repair protein RAD51, thereby disrupting DNA damage repair. Antineoplastic activity.
    Amuvatinib
  • HY-N3980
    Guaiol
    		99.67%
    Guaiol is a sesquiterpenoid alcohol with oral activity found in various traditional Chinese medicines, exhibiting biological activities such as anti-proliferative, autophagy-promoting, insecticidal, anti-anxiety, anti-inflammatory, diuretic, and blood pressure-lowering effects. Guaiol induces apoptosis in non-small cell lung cancer cells by regulating the stability of RAD51 through autophagy modulation. Guaiol can also act directly on parasites, inhibiting their growth by affecting the kinetoplast, mitochondrial matrix and plasma membrane of the promastigotes. Guaiol kills amastigotes at an IC50 of 0.01 µg/mL. Guaiol can be used in research related to cancer, infections, cardiovascular diseases, and inflammatory conditions[4]
    Guaiol
  • HY-122705
    RAD51-IN-1
    		Inhibitor 99.89%
    RAD51-IN-1, a derivative of  B02, is a potent inhibitor of RAD51. RAD51-IN-1 can be used for cancer research.
    RAD51-IN-1
  • HY-16904
    RI-2
    		Inhibitor 99.90%
    RI-2 is a reversible RAD51 inhibitor, with an IC50 of 44.17 μM, and specifically inhibits homologous recombination repair in human cells.
    RI-2
  • HY-111887
    Emzadirib
    		Inhibitor 99.63%
    Emzadirib (RAD51-IN-2) is a RAD51 inhibitor extracted from patent WO2019/051465A1.
    Emzadirib
  • HY-148183
    Homologous recombination-IN-1
    		Inhibitor 99.65%
    Homologous recombination-IN-1 is a novel RAD51-BRCA2 protein-protein interaction inhibitor (EC50=19 μM). Homologous recombination-IN-1 can interfere with homologous recombination.
    Homologous recombination-IN-1
  • HY-126972A
    RI(dl)-2 TFA
    		Inhibitor 98.02%
    RI(dl)-2 TFA is a potent and selective RAD51-mediated D-loop formation inhibitor with an IC50 of 11.1 μM. RI(dl)-2 TFA does not influence RAD51 binding to ssDNA and inhibits homologous recombination (HR) activity in human cells (IC50 of 3.0 μM).
    RI(dl)-2 TFA
  • HY-136604
    RAD51-IN-3
    		Inhibitor 99.24%
    RAD51-IN-3 is a Rad51 inhibitor extracted from patent WO2019051465A1, compound Example 66A.
    RAD51-IN-3
  • HY-143736
    RAD51-IN-5
    		Inhibitor 98.87%
    RAD51-IN-5 is a potent inhibitor of RAD51. RAD51 is a eukaryote gene. RAD51-IN-5 has the potential for the research of conditions involving mitochondrial defects (extracted from patent WO2021164746A1, compound 3).
    RAD51-IN-5
  • HY-143735
    RAD51-IN-4
    		Inhibitor
    RAD51-IN-4 is a potent inhibitor of RAD51. RAD51 is a eukaryote gene. RAD51-IN-4 has the potential for the research of conditions involving mitochondrial defects (extracted from patent WO2019014315A1, compound R12).
    RAD51-IN-4
Cat. No. Product Name / Synonyms Application Reactivity