AbFlex® Rad21 antibody (rAb)

RRID: AB_2793817
Catalog No: 91245 Format: 100 µg $385 Buy
Catalog No: 91246 Format: 10 µg $85 Buy

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Antibody Type:
Protein A Chromatography
Molecular Weight:
100 kDa
Human, Mouse


Western Blot Validated Immunofluorescence Validated

Application Notes

Applications Validated by Active Motif:
IF: 0.25 - 1 µg/ml
WB*: 0.5- 2 µg/ml

*Note: many chromatin-bound proteins are not soluble in a low salt nuclear extract and fractionate to the pellet. Therefore, we recommend a High Salt / Sonication Protocol when preparing nuclear extracts for Western Blot.

AbFlex® recombinant antibodies are genetically derived from DNA sequences of parental hybridoma clones. For details on the parental clone, see Catalog No. 39383.


This antibody was raised against recombinant protein corresponding to the N-terminal half of mouse Rad21.


Purified IgG in 140 mM Hepes, pH 7.5, 70 mM NaCl, 32 mM NaOAc, 0.035% sodium azide, 30% glycerol.


AbFlex® Rad21 antibody (rAb) tested by Western blot.
20 µg of HeLa cell nuclear extract was run on SDS-PAGE and probed with AbFlex Rad21 antibody at 1 µg/ml.

AbFlex® Rad21 antibody (rAb) tested by Immunofluorescence.
HeLa cells stained with 0.5 µg /mL of AbFlex Rad21 antibody (rAb) (Top Panel) or DAPI (Lower Panel) followed by anti-mouse IgG-488.


AbFlex® antibodies are recombinant antibodies (rAbs) that have been generated using defined DNA sequences to produce highly specific, reproducible antibodies. Each AbFlex antibody contains a 6xHis Tag, a Biotinylation Tag for enzymatic biotin conjugation using the biotin ligase, BirA, and a sortase recognition motif (LPXTG) to attach a variety of labels directly to the antibody including fluorophores, enzymatic substrates (HRP, AP), peptides, drugs as well as solid supports. AbFlex® Rad21 antibody was expressed as full-length IgG with mouse immunoglobulin heavy and light chains (IgG2a isotype) in mammalian 293 cells

Rad21 (HR21, MCD1, NXP1, hHR21) is highly similar to the gene product of S. pombe Rad21, a gene involved in the repair of DNA double-strand breaks, as well as in chromatid cohesion during mitosis. Rad21 is a nuclear phosphoprotein, which becomes hyperphosphorylated in cell cycle M phase. The highly regulated association of Rad21 with mitotic chromatin specifically at the centromere region suggests its role in sister chromatid cohesion in mitotic cells.


Some products may be shipped at room temperature. This will not affect their stability or performance. Avoid repeated freeze/thaw cycles by aliquoting items into single-use fractions for storage at -20°C for up to 2 years. Keep all reagents on ice when not in storage.


This product is guaranteed for 12 months from date of receipt.

This product is for research use only and is not for use in diagnostic procedures.

Application Key

  • ChIP = Chromatin Immunoprecipitation;
  • ChIP = ChIP Sequencing;
  • CUT&RUN = Cleavage Under Targets and Release Using Nuclease;
  • CUT&Tag = Cleavage Under Targets and Tagmentation;
  • DB = Dot Blot;
  • ELISA = Enzyme-linked Immunosorbent Assay;
  • EMSA = Electrophoretic Mobility Shift Assay
  • FC = Flow Cytometry;
  • ICC = Immunocytochemistry;
  • IF = Immunofluorescence;
  • IHC = Immunohistochemistry;
  • IP = Immunoprecipitation;
  • MeDIP = Methyl-DNA Immunoprecipitation;
  • NEU = Neutralizing;
  • WB = Western Blotting