• Product name
    Anti-ORC2 antibody [SB46]
    See all ORC2 primary antibodies
  • Description
    Mouse monoclonal [SB46] to ORC2
  • Tested applications
    Suitable for: IP, WB, Flow Cytmore details
  • Species reactivity
    Reacts with: Human, Saccharomyces cerevisiae
  • Immunogen

    Recombinant full length protein (Saccharomyces cerevisiae).



Our Abpromise guarantee covers the use of ab31930 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IP Use at an assay dependent concentration.
WB Use a concentration of 2 µg/ml. Predicted molecular weight: 66 kDa.
Flow Cyt Use 1µg for 106 cells.

ab170190 - Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.


  • Function
    Component of the origin recognition complex (ORC) that binds origins of replication. DNA-binding is ATP-dependent, however specific DNA sequences that define origins of replication have not been identified so far. ORC is required to assemble the pre-replication complex necessary to initiate DNA replication.
  • Sequence similarities
    Belongs to the ORC2 family.
  • Cellular localization
  • Information by UniProt
  • Database links
  • Alternative names
    • orc2 antibody
    • ORC2_HUMAN antibody
    • ORC2L antibody
    • Origin of replication 2 (yeast homolog) like antibody
    • Origin recognition complex protein 2 homolog antibody
    • Origin recognition complex subunit 2 antibody
    • Origin recognition complex subunit 2 isoform B antibody
    • Origin recognition complex subunit 2 like (yeast) antibody
    • Origin recognition complex, subunit 2 homolog antibody
    • Origin recognition complex, subunit 2, S. cerevisiae, homolog of antibody
    • Origin recognition complex, subunit 2-like (S. cerevisiae) antibody
    see all

Anti-ORC2 antibody [SB46] images

  • Predicted band size : 66 kDa

    Image from Granata M et al, PLoS Genet. 2010 Aug 5;6(8). pii: e1001047, Fig S1.

    The Western blots in which the presence of Rad9 was analyzed in the total (T), soluble (S) and chromatin-enriched (Ch) fractions from wt (K699) cells, were controlled for proper fractionation of control proteins, known to remain in the soluble fraction (Tubulin) or to bind to chromatin (Orc2, ab31930).
  • Overlay histogram showing HeLa cells stained with ab31930 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab31930, 1µg/1x106 cells) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was mouse IgG1 [ICIGG1] (ab91353, 2µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed.

References for Anti-ORC2 antibody [SB46] (ab31930)

This product has been referenced in:
  • Hiraga SI  et al. Human RIF1 and protein phosphatase 1 stimulate DNA replication origin licensing but suppress origin activation. EMBO Rep 18:403-419 (2017). Flow Cyt ; Human . Read more (PubMed: 28077461) »
  • Granata M  et al. Dynamics of Rad9 chromatin binding and checkpoint function are mediated by its dimerization and are cell cycle-regulated by CDK1 activity. PLoS Genet 6: (2010). WB ; Saccharomyces cerevisiae . Read more (PubMed: 20700441) »

See all 2 Publications for this product

Product Wall

Abcam guarantees this product to work in the species/application used in this Abreview.
Western blot
Human Cell lysate - other (Hela cell subcellular fractionation)
Loading amount
10 µg
Hela cell subcellular fractionation
Gel Running Conditions
Reduced Denaturing
Blocking step
Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C

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Submitted Dec 18 2007


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