Date published: 2026-5-9

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ORC3 Antibody (C-12): sc-374231

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Datasheets
  • ORC3 Antibody (C-12) is a mouse monoclonal IgG1 κ provided at 200 µg/ml
  • raised against amino acids 617-707 mapping at the C-terminus of ORC3 of human origin
  • Anti-ORC3 Antibody (C-12) is recommended for detection of ORC3 of mouse, rat and human origin by WB, IP, IF and ELISA
  • Anti-ORC3 Antibody (C-12) is available conjugated to agarose for IP; HRP for WB, IHC(P) and ELISA; and to either phycoerythrin or FITC for IF, IHC(P) and FCM
  • also available conjugated to Alexa Fluor® 488, Alexa Fluor® 546, Alexa Fluor® 594 or Alexa Fluor® 647 for WB (RGB), IF, IHC(P) and FCM, and for use with RGB fluorescent imaging systems, such as iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • also available conjugated to Alexa Fluor® 680 or Alexa Fluor® 790 for WB (NIR), IF and FCM; for use with Near-Infrared (NIR) detection systems, such as LI-COR®Odyssey®, iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • m-IgG Fc BP-HRP and m-IgGκ BP-HRP are the preferred secondary detection reagents for ORC3 Antibody (C-12) for WB applications. These reagents are now offered in bundles with ORC3 Antibody (C-12) (see ordering information below).
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    ORC3 Antibody (C-12) is a mouse monoclonal IgG1 kappa light chain antibody that detects ORC3 in mouse, rat, and human samples through applications such as western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and enzyme-linked immunosorbent assay (ELISA). Anti-ORC3 antibody (C-12) is available in both non-conjugated and various conjugated forms, including agarose, horseradish peroxidase (HRP), phycoerythrin (PE), fluorescein isothiocyanate (FITC), and multiple Alexa Fluor® conjugates. ORC3 is a vital component of the origin recognition complex (ORC), which is essential for the initiation of DNA replication. ORC3 plays a critical role in forming pre-replication complexes necessary for accurate and timely DNA replication during the cell cycle. ORC3, along with other ORC subunits, binds to specific origins of replication, serving as a scaffold for assembling additional initiation factors. This interaction ensures DNA replication occurs at the right time and place within the cell, maintaining genomic stability. ORC3 and associated proteins are particularly important in proliferating cells, where any dysregulation can lead to uncontrolled cell division or genomic instability, common features of cancer.

    For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

    Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

    LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

    ORC3 Antibody (C-12) References:

    1. Interactions and subcellular distribution of DNA replication initiation proteins in eukaryotic cells.  |  Brand, N., et al. 2007. Mol Genet Genomics. 278: 623-32. PMID: 17680271
    2. ATP-dependent assembly of the human origin recognition complex.  |  Siddiqui, K. and Stillman, B. 2007. J Biol Chem. 282: 32370-83. PMID: 17716973
    3. Human origin recognition complex is essential for HP1 binding to chromatin and heterochromatin organization.  |  Prasanth, SG., et al. 2010. Proc Natl Acad Sci U S A. 107: 15093-8. PMID: 20689044
    4. TORC1 signaling regulates DNA replication via DNA replication protein levels.  |  Yamamoto, K., et al. 2018. Biochem Biophys Res Commun. 505: 1128-1133. PMID: 30316513
    5. The ORC ubiquitin ligase OBI1 promotes DNA replication origin firing.  |  Coulombe, P., et al. 2019. Nat Commun. 10: 2426. PMID: 31160578
    6. Novel candidate biomarkers of origin recognition complex 1, 5 and 6 for survival surveillance in patients with hepatocellular carcinoma.  |  Wang, XK., et al. 2020. J Cancer. 11: 1869-1882. PMID: 32194798
    7. The dynamic nature of the human origin recognition complex revealed through five cryoEM structures.  |  Jaremko, MJ., et al. 2020. Elife. 9: PMID: 32808929
    8. Human ORC/MCM density is low in active genes and correlates with replication time but does not delimit initiation zones.  |  Kirstein, N., et al. 2021. Elife. 10: PMID: 33683199
    9. Systemic analysis of the DNA replication regulator origin recognition complex in lung adenocarcinomas identifies prognostic and expression significance.  |  Tang, M., et al. 2023. Cancer Med. 12: 5035-5054. PMID: 36205357
    10. Multiple mechanisms for licensing human replication origins.  |  Yang, R., et al. 2024. Nature. 636: 488-498. PMID: 39604729

    Ordering Information

    Product NameCatalog #UNITPriceQtyFAVORITES

    ORC3 Antibody (C-12)

    sc-374231
    200 µg/ml
    $322.00

    ORC3 Antibody (C-12): m-IgG Fc BP-HRP Bundle

    sc-529693
    200 µg Ab; 10 µg BP
    $361.00

    ORC3 Antibody (C-12): m-IgGκ BP-HRP Bundle

    sc-522667
    200 µg Ab, 40 µg BP
    $361.00

    ORC3 Antibody (C-12) AC

    sc-374231 AC
    500 µg/ml, 25% agarose
    $424.00

    ORC3 Antibody (C-12) HRP

    sc-374231 HRP
    200 µg/ml
    $322.00

    ORC3 Antibody (C-12) FITC

    sc-374231 FITC
    200 µg/ml
    $336.00

    ORC3 Antibody (C-12) PE

    sc-374231 PE
    200 µg/ml
    $349.00

    ORC3 Antibody (C-12) Alexa Fluor® 488

    sc-374231 AF488
    200 µg/ml
    $364.00

    ORC3 Antibody (C-12) Alexa Fluor® 546

    sc-374231 AF546
    200 µg/ml
    $364.00

    ORC3 Antibody (C-12) Alexa Fluor® 594

    sc-374231 AF594
    200 µg/ml
    $364.00

    ORC3 Antibody (C-12) Alexa Fluor® 647

    sc-374231 AF647
    200 µg/ml
    $364.00

    ORC3 Antibody (C-12) Alexa Fluor® 680

    sc-374231 AF680
    200 µg/ml
    $364.00

    ORC3 Antibody (C-12) Alexa Fluor® 790

    sc-374231 AF790
    200 µg/ml
    $364.00

    For Western Blot, is it recommended to use denatured or non-denatured conditions with ORC3 (C-12): sc-374231 monoclonal antibody?

    Asked by: Germaine
    Thank you for your question. We recommend this antibody for use in denatured Western Blot conditions. It has not been validated for use in non-denatured conditions. Please contact our Technical Service Department for further details or inquiries.
    Answered by: Technical Support
    Date published: 2017-02-27
    • y_2026, m_5, d_8, h_10CST
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    Rated 5 out of 5 by from Good Western Blot data of ORC3 expressionGood Western Blot data of ORC3 expression in HeLa and Jurkat whole cell lysates. -SCBT QC
    Date published: 2015-02-24
    Rated 5 out of 5 by from Satisfactory Western Blot data of ORC3 expressionSatisfactory Western Blot data of ORC3 expression in Raji whole cell lysate. -SCBT QC
    Date published: 2014-09-02
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    ORC3 Antibody (C-12) is rated 5.0 out of 5 by 2.
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