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Anti-Ki67 antibody [MKI67/2465] (ab238020) is a mouse monoclonal antibody detecting Ki67 in Flow Cytometry, IHC-P. Suitable for Human.



- Over 10 publications


Images

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Ki67 antibody [MKI67/2465] (AB238020), expandable thumbnail
  • Flow Cytometry - Anti-Ki67 antibody [MKI67/2465] (AB238020), expandable thumbnail
  • Immunocytochemistry - Anti-Ki67 antibody [MKI67/2465] (AB238020), expandable thumbnail
  • Protein Array - Anti-Ki67 antibody [MKI67/2465] (AB238020), expandable thumbnail
  • Immunocytochemistry - Anti-Ki67 antibody [MKI67/2465] (AB238020), expandable thumbnail

Publications

Key facts

Isotype
IgG2b
Host species
Mouse
Storage buffer

pH: 7.2 - 7.4
Preservative: 0.05% Sodium azide
Constituents: PBS, 0.05% BSA

Form
Liquid
Clonality
Monoclonal

Immunogen

  • Recombinant Fragment Protein within Human MKI67 aa 2250-2500. The exact immunogen used to generate this antibody is proprietary information. Database link P46013

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Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
ICCFlow CytProtein ArrayIHC-P
Human
Tested
Tested
Expected
Tested
Recombinant full length protein - Human
Not recommended
Not recommended
Tested
Not recommended

Tested
Tested

Species
Human
Dilution info
1-2 µg/mL
Notes

-

Not recommended
Not recommended

Species
Recombinant full length protein - Human
Dilution info
-
Notes

-

Tested
Tested

Species
Human
Dilution info
-
Notes

1-2 μg/million cells

Not recommended
Not recommended

Species
Recombinant full length protein - Human
Dilution info
-
Notes

-

Tested
Tested

Species
Recombinant full length protein - Human
Dilution info
-
Notes

-

Expected
Expected

Species
Human
Dilution info
Use at an assay dependent concentration.
Notes

-

Tested
Tested

Species
Human
Dilution info
1-2 µg/mL
Notes

Primary incubation for 30 minutes at room temperature.

Not recommended
Not recommended

Species
Recombinant full length protein - Human
Dilution info
-
Notes

-

Target data

Function

The protein expressed by the MKI67 gene is required to maintain individual mitotic chromosomes dispersed in the cytoplasm following nuclear envelope disassembly and associates with the surface of the mitotic chromosome, specifically the perichromosomal layer, covering a significant portion of the chromosome surface (PubMed:27362226). It prevents chromosomes from collapsing into a single chromatin mass by creating a steric and electrostatic charge barrier due to its high net electrical charge, acting as a surfactant that disperses chromosomes and enables their independent motility (PubMed:27362226). The protein binds DNA, with a preference for supercoiled and AT-rich DNA (PubMed:10878551), and may play a role in chromatin organization, though it is unclear if it directly influences chromatin organization or if this is an indirect result of its function in maintaining dispersed mitotic chromosomes (Probable, PubMed:24867636). This supplementary information is collated from multiple sources and compiled automatically.

Alternative names

Recommended products

Anti-Ki67 antibody [MKI67/2465] (ab238020) is a mouse monoclonal antibody detecting Ki67 in Flow Cytometry, IHC-P. Suitable for Human.



- Over 10 publications

Key facts

Isotype
IgG2b
Form
Liquid
Clonality
Monoclonal
Immunogen
  • Recombinant Fragment Protein within Human MKI67 aa 2250-2500. The exact immunogen used to generate this antibody is proprietary information. Database link P46013
Clone number
MKI67/2465
Purification technique
Affinity purification Protein A/G
Light chain type
kappa
Concentration
Loading...
Purification notes

Purified from Bioreactor concentrate.

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Notes

What is this antibody validated in?


Anti-Ki67 antibody [MKI67/2465] (ab238020) is a mouse monoclonal antibody and is validated for use in Flow Cytometry (Flow Cyt), Immunohistochemistry (IHC-P) in Human samples.

Trusted by the scientific community


Anti-Ki67 [MKI67/2465] (ab238020) was first used in a scientific publication in 2019 and has been cited over 10 times in peer-reviewed journals.

Other related products


We have a range of other formats of antibody clone [MKI67/2465] also available for your convenience:
ab238020, Biotin - Biotin Anti-Ki67 antibody [MKI67/2465] ab271811



Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

Ki67 is a nuclear protein often referred to as MKI67 with a molecular weight of approximately 345 kDa. This protein is strongly associated with cell proliferation. Scientists commonly use Ki67 staining techniques to identify and quantify proliferating cells in tissues. Ki67 is expressed in the nucleus during active cell cycle phases—G1 S G2 and M—but not in resting cells in G0 phase. It is detectable through methods such as Ki67 immunofluorescence and Ki67 flow cytometry which are important for analyzing cell division.

Biological function summary

The Ki67 protein plays an essential role in cellular proliferation processes. It does not form part of a stable complex but interacts transiently with other cell cycle-related proteins. Research indicates that Ki67 maintains the structure of the perichromosomal layer during mitosis impacting chromosome separation. It is particularly active in tissues with high cell turnover such as bone marrow and lymphoid organs.

Pathways

Ki67 influences several key cellular pathways that control cell proliferation and differentiation. The protein acts within the regulation of the cell cycle and the PI3K/AKT signaling pathway important for cell growth and survival. Within these pathways Ki67 interacts with proteins like cyclin-dependent kinases (CDKs) which regulate transitions between different phases of the cell cycle.

Associated diseases and disorders

Ki67 has significant implications in oncology and can be used as a biomarker for cancer prognosis. Its expression levels help determine the aggressiveness of tumors especially in breast cancer and prostate cancer. High Ki67 levels correlate with poor prognosis as it indicates rapid cell division. In cancer Ki67 associates with p53 a protein that regulates the cell cycle and function as a tumor suppressor.

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6 product images

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Ki67 antibody [MKI67/2465] (ab238020), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Ki67 antibody [MKI67/2465] (ab238020)

    Formalin-fixed, paraffin-embedded human tonsil tissue stained for Ki67 using ab238020 at 2 μg/ml in immunohistochemical analysis.

  • Flow Cytometry - Anti-Ki67 antibody [MKI67/2465] (ab238020), expandable thumbnail

    Flow Cytometry - Anti-Ki67 antibody [MKI67/2465] (ab238020)

    Flow cytometric analysis of HeLa (human epithelial cell line from cervix adenocarcinoma) cells labeling Ki67 with ab238020 at 2 μg per 106 cells (blue) compared to an isotype control (red). A Goat Anti-mouse CF488 secondary antibody was used.

  • Immunocytochemistry - Anti-Ki67 antibody [MKI67/2465] (ab238020), expandable thumbnail

    Immunocytochemistry - Anti-Ki67 antibody [MKI67/2465] (ab238020)

    MCF7 (human breast adenocarcinoma cell line) cells stained for Ki67 (green) using ab238020 at 2 μg/mL in ICC. The membrane is labelled with phalloidin (red).

  • Protein Array - Anti-Ki67 antibody [MKI67/2465] (ab238020), expandable thumbnail

    Protein Array - Anti-Ki67 antibody [MKI67/2465] (ab238020)

    ab238020 was tested in protein array against over 19000 different full-length human proteins.
    Z- and S- Score: The Z-score represents the strength of a signal that a monoclonal antibody (MAb) (in combination with a fluorescently-tagged anti-IgG secondary antibody) produces when binding to a particular protein on the HuProtTM array. Z-scores are described in units of standard deviations (SD's) above the mean value of all signals generated on that array. If targets on HuProtTM are arranged in descending order of the Z-score, the S-score is the difference (also in units of SD's) between the Z-score. S-score therefore represents the relative target specificity of a MAb to its intended target.
    A MAb is specific to its intended target if the MAb has an S-score of at least 2.5. For example, if a MAb binds to protein X with a Z-score of 43 and to protein Y with a Z-score of 14, then the S-score for the binding of that MAb to protein X is equal to 29.

  • Immunocytochemistry - Anti-Ki67 antibody [MKI67/2465] (ab238020), expandable thumbnail
    This image is courtesy of an anonymous customer review

    Immunocytochemistry - Anti-Ki67 antibody [MKI67/2465] (ab238020)

    Immunocytochemistry analysis of formaldehyde-fixed human hiSPC cells, staining with ab238020 at 1/100 dilution. Secondary antibody was Alexa Fluor® 647 goat anti mouse 1/1000 dilution. Cells were incubated with the primary antibody with 1% BSA 0.3% Triton X for 12 hours at 4°C . Blocking was done using 3% BSA for 1 hour.

  • Immunocytochemistry - Anti-Ki67 antibody [MKI67/2465] (ab238020), expandable thumbnail
    This image is courtesy of a customer review submitted by Ingrid Saldana

    Immunocytochemistry - Anti-Ki67 antibody [MKI67/2465] (ab238020)

    Immunocytochemistry analysis of paraformaldehyde-fixed human hES cells differentiated into neural crest cells permeabilized with 0.5% Triton, staining with ab238020 at 1/100 dilution. Secondary antibody was Alexa Fluor™ 647 Goat anti Mouse at 1/500 dilution. Cells were incubated with the primary antibody with 10% serum in PBS for 18 hours at 4°C . Blocking was done using 10% serum for 2 hours at room 25°C.

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Product protocols

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