APC anti-human Ki-67 Antibody

Pricing & Availability
Ki-67 (See other available formats)
Regulatory Status
Other Names
Antigen Ki-67
Mouse IgG1, κ
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Product Citations
PHA-activated human peripheral blood lymphocytes (3 days) were fixed and permeabilized with 70% ethanol, and then stained with Ki-67 APC (filled histogram) or mouse IgG1, κ APC isotype control (open histogram).
  • Ki-67_APC_110811
    PHA-activated human peripheral blood lymphocytes (3 days) were fixed and permeabilized with 70% ethanol, and then stained with Ki-67 APC (filled histogram) or mouse IgG1, κ APC isotype control (open histogram).
  • Ki-67_APC_2_032312
    3-day PHA-stimulated human peripheral blood lymphocytes were fixed and permeabilized with BioLegend FOXP3 buffer set, then stained with Ki-67 APC (filled histogram) or mouse IgG1, κ APC isotype control (open histogram).
Compare all formats See APC spectral data
Cat # Size Price Save
350513 25 tests ¥30,140
350514 100 tests ¥71,720

Antigen Ki-67 is a nuclear protein expressed as two isoforms with molecular weights of 395 and 345 kD. Both isoforms contain one forkhead-associated domain and 16 concatenated "Ki-67 repeats," each containing the epitope recognized by the mAb Ki-67. The antigen Ki-67 interacts with Hklp2, hNIFK, and chromobox protein homolog 1, 3, and 5. Ki-67 is required for cell proliferation and its expression is restricted to the phases G1, S, G2, and M of the cell cycle. This characteristic makes Ki-67 an excellent marker for proliferating cells and is commonly used as one of the prognostic factors in cancer studies. Ki-67 has also been used to study myocyte proliferation after myocardial infarction as well as lymphocyte proliferation during infection, and has been used in neurons of patients with different neuropathologies.

Product Details
Technical data sheet

Product Details

Verified Reactivity
Reported Reactivity
Antibody Type
Host Species
Nuclei of the Hodgkin lymphoma cell line L428
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA)
The antibody was purified by affinity chromatography and conjugated with APC under optimal conditions.
Lot-specific (to obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.)
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.

ICFC - Quality tested

Recommended Usage

Each lot of this antibody is quality control tested by our Ki-67 staining protocol below. For flow cytometric staining, the suggested use of this reagent is 5 µl per million cells in 100 µl staining volume or 5 µl per 100 µl of whole blood.

Excitation Laser
Red Laser (633 nm)
Application Notes

Additional reported applications (for the relevant formats) include: immunohistochemical staining of frozen tissue sections1, Western blotting3, and immunofluorescence microscopy4.

Ki-67 Staining Protocol:

1. Prepare 70% ethanol and chill at -20°C.
2. Prepare target cells of interest and wash 2X with PBS by centrifuge at 350xg for 5 minutes.
3. Discard supernatant and loosen the cell pellet by vortexing.
4. Add 3 ml cold 70% ethanol drop by drop to the cell pellet while vortexing.
5. Continue vortexing for 30 seconds and then incubate at -20°C for 1 hour.
6. Wash 3X with BioLegend Cell Staining Buffer and then resuspend the cells at the concentration of 0.5-10 x 106/ml.
7. Mix 100 µl cell suspension with proper fluorochrome-conjugated Ki-67 antibody and incubate at room temperature in the dark for 30 minutes.
8. Wash 2X with BioLegend Cell Staining Buffer and then resuspend in 0.5 ml cell staining buffer for flow cytometric analysis.

Application References

(PubMed link indicates BioLegend citation)
  1. Gerdes J, et al. 1983. Int. J. Cancer 31:13. (IHC)
  2. Gerdes J, et al. 1984. J. Immunol. 133:1710. (ICFC)
  3. Schluter C, et al. 1993 J. Cell Biol. 123:513. (IHC, WB)
  4. Bading H, et al. 1989 Exp. Cell. Res. 185:50. (IF)
  5. Guha P, et al. 2013. PNAS. 110:5052. PubMed
Product Citations
  1. Chugh RM, et al. 2021. Stem Cell Res Ther. 12:388. PubMed
  2. Dubuisson A, et al. 2021. EMBO Mol Med. 13:e12850. PubMed
  3. Kobayashi Y, et al. 2020. Int J Oncol. 999:56. PubMed
  4. Zhou WJ, et al. 2020. Aging (Albany NY). 12:22759. PubMed
  5. Evans RDR, et al. 2020. Nat Commun. 3.491666667. PubMed
  6. Zhang D, et al. 2021. Cancer Med. 10:2137. PubMed
  7. Jung Y, et al. 2020. Neoplasia. 1.029166667. PubMed
  8. Wang D, et al. 2020. J Cell Mol Med. 24:4212. PubMed
  9. Yumoto K, et al. 2016. Sci Rep. 6:36520. PubMed
  10. Nodomi S, et al. 2016. Oncogene. 10.1038/onc.2016.72. PubMed
  11. Scherpenisse M, et al. 2021. MBio. 12:. PubMed
  12. Landgraf KE, et al. 2020. Commun Biol. 0.330555556. PubMed
  13. Wu K, et al. 2018. Oncol Rep. 40:3523. PubMed
  14. Park HS, et al. 2021. Sci Rep. 11:4525. PubMed
  15. Sontheimer-Phelps A, et al. 2019. Cell Mol Gastroenterol Hepatol. 9:507. PubMed
  16. Xie G, et al. 2021. Aging (Albany NY). 13:. PubMed
  17. Maine C, et al. 2014. J Immunol. 192:1415. PubMed
AB_10959326 (BioLegend Cat. No. 350513)
AB_10959327 (BioLegend Cat. No. 350514)

Antigen Details

Two isoforms with molecular weights of 395 and 345 kD, one forkhead-associated domain, 16 concatenated Ki-67 repeats, located in nucleus

Expressed in the phases G1, S, G2, and M of the cell cycle

Required for cell proliferation
Chromobox protein homolog 1, 3 and 5, Hklp2, and hNIFK
Biology Area
Cell Biology, Cell Cycle/DNA Replication, DNA Repair/Replication
Molecular Family
Nuclear Markers
Antigen References

1. Byeon IJ, et al. 2005. Nat. Struct. Mol. Biol. 12:987.
2. Yerushalmi R, et al. 2010. Lancet. Oncol. 11:174.
3. Beltrami AP, et al. 2001. N. Engl. J. Med. 344:1750.
4. Sachsenberg N, et al. 1998. J. Exp. Med. 187:1295.
5. Nagy Z, et al. 1997. Acta. Neuropathol. 93:294.

Gene ID
4288 View all products for this Gene ID
View information about Ki-67 on UniProt.org

Related FAQs

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Go To Top Version: 3    Revision Date: 03/01/2013

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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

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