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AB283699

Alexa Fluor® 647 Anti-Ki67 antibody [B56]

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Mouse Recombinant Monoclonal Ki67 antibody - conjugated to Alexa Fluor® 647. Suitable for ICC/IF, Flow Cyt (Intra), IHC-P and reacts with Human, Mouse, Rat samples.

View Alternative Names

Proliferation marker protein Ki-67, Antigen identified by monoclonal antibody Ki-67, Antigen KI-67, Antigen Ki67, MKI67

3 Images
Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 647 Anti-Ki67 antibody [B56] (AB283699)
  • ICC/IF

Lab

Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 647 Anti-Ki67 antibody [B56] (AB283699)

Immunofluorescent analysis of 4% Paraformaldehyde HeLa (human cervix adenocarcinoma epithelial cells) labelling Ki67 with ab283699 at 1/500 dilution, (Red). Confocal image showing nucleolar staining on HeLa cells. ab179513 Anti-beta Tubulin rabbit monoclonal antibody - Microtubule Marker was used to counterstain tubulin at 1/200 dilution. ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed was used as the counterstain secondary antibody at 1/1000 (Green). The nuclear counterstain was DAPI (Blue).

Flow Cytometry (Intracellular) - Alexa Fluor® 647 Anti-Ki67 antibody [B56] (AB283699)
  • Flow Cyt (Intra)

Lab

Flow Cytometry (Intracellular) - Alexa Fluor® 647 Anti-Ki67 antibody [B56] (AB283699)

Intracellular Flow cytometric overlay histogram showing 4% paraformaldehyde fixed HeLa (Human cervix adenocarcinoma epithelial cells (Right)) permeabilized with 90% methanol labelling Ki67 with ab283699 at 1/5000 dilution (Red). MKI67 KO HeLa (Left). Isotype control was Mouse monoclonal IgG (Black). Unlabelled control : Cells without incubation with primary antibody and secondary antibody (Blue).

Positive staining on HeLa cells (ab255448), while no staining on Ki67 knockout HeLa cells (ab255407).

Flow Cytometry (Intracellular) - Alexa Fluor® 647 Anti-Ki67 antibody [B56] (AB283699)
  • Flow Cyt (Intra)

Lab

Flow Cytometry (Intracellular) - Alexa Fluor® 647 Anti-Ki67 antibody [B56] (AB283699)

Intracellular Flow cytometric scatterplot showing 4% paraformaldehyde fixed HeLa (Human cervix adenocarcinoma epithelial cells) permeabilized with 90% methanol labelling Ki67 with ab283699 at 1/5000 dilution (Red). Mouse monoclonal IgG (Left)

Cells were co-stained with DAPI to differentiate cell cycle phase.

Key facts

Host species

Mouse

Clonality

Monoclonal

Clone number

B56

Isotype

IgG

Conjugation

Alexa Fluor® 647

Excitation/Emission

Ex: 650nm, Em: 665nm

Carrier free

No

Reacts with

Human, Human, Mouse, Rat

Applications

ICC/IF, Flow Cyt (Intra), IHC-P

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

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Complementary Products

Assay Kits

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Secondary Antibodies

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Primary Antibodies

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Primary Antibodies

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Anti-alpha smooth muscle Actin antibody [1A4]

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "ICCIF" : {"fullname" : "Immunocytochemistry/ Immunofluorescence", "shortname":"ICC/IF"}, "FlowCytIntra" : {"fullname" : "Flow Cytometry (Intracellular)", "shortname":"Flow Cyt (Intra)"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "ICCIF-species-checked": "testedAndGuaranteed", "ICCIF-species-dilution-info": "1/500", "ICCIF-species-notes": "<p></p>", "FlowCytIntra-species-checked": "testedAndGuaranteed", "FlowCytIntra-species-dilution-info": "1/5000", "FlowCytIntra-species-notes": "<p></p>", "IHCP-species-checked": "guaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>" }, "Mouse": { "ICCIF-species-checked": "guaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "<p></p>", "FlowCytIntra-species-checked": "guaranteed", "FlowCytIntra-species-dilution-info": "", "FlowCytIntra-species-notes": "<p></p>", "IHCP-species-checked": "guaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>" }, "Rat": { "ICCIF-species-checked": "guaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "<p></p>", "FlowCytIntra-species-checked": "guaranteed", "FlowCytIntra-species-dilution-info": "", "FlowCytIntra-species-notes": "<p></p>", "IHCP-species-checked": "guaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>" } } }
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Product details

This antibody clone is manufactured by Abcam. If you require a custom buffer formulation or conjugation for your experiments, please contact orders@abcam.com.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

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Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Preservative: 0.02% Sodium azide Constituents: PBS, 30% Glycerol (glycerin, glycerine), 1% BSA
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|Store in the dark
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Supplementary information

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

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.

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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Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:
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Target data

Protein that associates with the surface of mitotic chromosomes and acts both as a chromosome repellent during early mitosis and chromosome attractant during late mitosis (PubMed : 27362226, PubMed : 32879492, PubMed : 35513709, PubMed : 39153474). Required to maintain individual mitotic chromosomes dispersed in the cytoplasm following nuclear envelope disassembly (PubMed : 27362226). During early mitosis, relocalizes from nucleoli to the chromosome surface where it forms extended brush structures that cover a substantial fraction of the chromosome surface (PubMed : 27362226). The MKI67 brush structure prevents chromosomes from collapsing into a single chromatin mass by forming a steric and electrostatic charge barrier : the protein has a high net electrical charge and acts as a surfactant, dispersing chromosomes and enabling independent chromosome motility (PubMed : 27362226). During mitotic anaphase, the MKI67 brush structure collapses and MKI67 switches from a chromosome repellent to a chromosome attractant to promote chromosome clustering and facilitate the exclusion of large cytoplasmic particles from the future nuclear space (PubMed : 32879492, PubMed : 39153474). Mechanistically, dephosphorylation during mitotic exit and simultaneous exposure of a conserved basic patch induce the RNA-dependent formation of a liquid-like condensed phase on the chromosome surface, promoting coalescence of neighboring chromosome surfaces and clustering of chromosomes (PubMed : 39153474). Binds premature ribosomal RNAs during anaphase; promoting liquid-liquid phase separation (PubMed : 28935370, PubMed : 39153474). Binds DNA, with a preference for supercoiled DNA and AT-rich DNA (PubMed : 10878551). Does not contribute to the internal structure of mitotic chromosomes (By similarity). May play a role in chromatin organization; it is however unclear whether it plays a direct role in chromatin organization or whether it is an indirect consequence of its function in mitotic chromosome (PubMed : 24867636).
See full target information MKI67
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Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.
For full details, please see our Terms & Conditions

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

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