- Ki-67 (See other available formats)
- Regulatory Status
- Other Names
- Antigen Ki-67
- Mouse IgG1, κ
- Ave. Rating
- Submit a Review
- Product Citations
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
- 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 Brilliant Violet 421™ under optimal conditions.
- Lot-specific (to obtain lot-specific concentration, please enter the lot number in our Concentration and Expiration Lookup or Certificate of Analysis online tools.)
- 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
ICC - Verified
- 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.
Brilliant Violet 421™ excites at 405 nm and emits at 421 nm. The standard bandpass filter 450/50 nm is recommended for detection. Brilliant Violet 421™ is a trademark of Sirigen Group Ltd.
Learn more about Brilliant Violet™.
This product is subject to proprietary rights of Sirigen Inc. and is made and sold under license from Sirigen Inc. The purchase of this product conveys to the buyer a non-transferable right to use the purchased product for research purposes only. This product may not be resold or incorporated in any manner into another product for resale. Any use for therapeutics or diagnostics is strictly prohibited. This product is covered by U.S. Patent(s), pending patent applications and foreign equivalents.
- Excitation Laser
Violet Laser (405 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.
- Additional Product Notes
View more applications data using this product in multi-color fluorescence microscopy and intracellular flow cytometry in our Scientific Poster Library.
(PubMed link indicates BioLegend citation)
- Gerdes J, et al. 1983. Int. J. Cancer 31:13. (IHC)
- Gerdes J, et al. 1984. J. Immunol. 133:1710. (ICFC)
- Schluter C, et al. 1993 J. Cell Biol. 123:513. (IHC, WB)
- Bading H, et al. 1989 Exp. Cell. Res. 185:50. (IF)
- Guha P, et al. 2013. PNAS. 110:5052. PubMed
- Product Citations
AB_10896915 (BioLegend Cat. No. 350505)
AB_2563860 (BioLegend Cat. No. 350506)
- 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 Pages & Pathways
- What is the F/P ratio range of our BV421™ format antibody reagents?
It is lot-specific. On average it ranges between 2-4.
Other FormatsView All Ki-67 Reagents Request Custom Conjugation
|Brilliant Violet 510™ anti-human Ki-67||Ki-67||ICFC,ICC|
|Purified anti-human Ki-67||Ki-67||ICFC,CyTOF®,ICC,WB,IHC-F|
|PE anti-human Ki-67||Ki-67||ICFC|
|Brilliant Violet 421™ anti-human Ki-67||Ki-67||ICFC,ICC|
|Alexa Fluor® 488 anti-human Ki-67||Ki-67||ICFC,ICC|
|Alexa Fluor® 647 anti-human Ki-67||Ki-67||ICFC,ICC|
|Pacific Blue™ anti-human Ki-67||Ki-67||ICFC|
|APC anti-human Ki-67||Ki-67||ICFC|
|Brilliant Violet 711™ anti-human Ki-67||Ki-67||ICFC|
|PerCP/Cyanine5.5 anti-human Ki-67||Ki-67||ICFC|
|Brilliant Violet 605™ anti-human Ki-67||Ki-67||ICFC|
|PE/Cyanine7 anti-human Ki-67||Ki-67||ICFC|
|Purified anti-human Ki-67 (Maxpar® Ready)||Ki-67||ICFC,CyTOF®|
|Alexa Fluor® 594 anti-human Ki-67||Ki-67||ICC|
|Alexa Fluor® 700 anti-human Ki-67||Ki-67||ICFC|
|PE/Dazzle™ 594 anti-human Ki-67||Ki-67||ICFC|
|Brilliant Violet 750™ anti-human Ki-67||Ki-67||ICFC|
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Compare Data Across All Formats
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.
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Brilliant Violet 510™ anti-human Ki-67
Purified anti-human Ki-67
PE anti-human Ki-67
Brilliant Violet 421™ anti-human Ki-67
Alexa Fluor® 488 anti-human Ki-67
Alexa Fluor® 647 anti-human Ki-67
Pacific Blue™ anti-human Ki-67
APC anti-human Ki-67
Brilliant Violet 711™ anti-human Ki-67
PerCP/Cyanine5.5 anti-human Ki-67
Brilliant Violet 605™ anti-human Ki-67
PE/Cyanine7 anti-human Ki-67
Purified anti-human Ki-67 (Maxpar® Ready)
Alexa Fluor® 594 anti-human Ki-67
Alexa Fluor® 700 anti-human Ki-67
PE/Dazzle™ 594 anti-human Ki-67
Brilliant Violet 750™ anti-human Ki-67