Key Product Details

Species Reactivity

Mouse

Applications

Immunocytochemistry

Label

DyLight 405 (Excitation = 400 nm, Emission = 420 nm)

Antibody Source

Polyclonal Sheep IgG
View all Ki67/MKI67 Primary Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant mouse Ki67/MKI67
Asn3053-Ser3177
Accession # NP_001074586

Specificity

Detects mouse Ki67/MKI67 in direct ELISAs. In direct ELISAs, less than 5% cross-reactivity with recombinant human Ki67/MKI67 is observed.

Clonality

Polyclonal

Host

Sheep

Isotype

IgG

Applications for Ki67/MKI67 Antibody [DyLight 405]

Application
Recommended Usage

Immunocytochemistry

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Formulation

50mM Sodium Borate

Preservative

0.05% Sodium Azide

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C in the dark.

Background: Ki67/MKI67

Ki67 is a nuclear protein associated with proliferation, named after its discovery in a Hodgkin's lymphoma-derived cell line by Scholzer and Gerdes at Kiel University, Germany (1). This proliferation marker is expressed during active phases of the cell cycle (late G1, S, G2 and M), whereas the protein remains undetectable in the G0 phase. Ki67 has two main isoforms with theoretical molecular weights of 319 kDa and 359 kDa. Its abundance is tightly regulated by synthesis and degradation with an estimated half-life of 60-90 min, regardless of its position in the cell cycle. Ki67 has been shown to be involved in ribosomal biogenesis, heterochromatin maintenance, and mitotic chromosome separation (2).

Detection of Ki67 by immunostaining is commonly used as a proliferation marker in solid tumors, as well as certain hematological malignancies (3-5). The Ki67 index, which reports on positive Ki67 stained tumor cell nuclei, has been extensively studied as a prognostic biomarker in cancers such as breast cancer and cervical cancer.

References

1. Gerdes J, Schwab U, Lemke H, Stein H. (1983) Production of a mouse monoclonal antibody reactive with a human nuclear antigen associated with cell proliferation. Int J Cancer. 31:13-20. PMID: 6339421

2. Starborg M, Gell K, Brundell E and Hoog C. (1996) The murine Ki-67 cell proliferation antigen accumulates in the nucleolar and heterochromatic regions of interphase cells and at the periphery of the mitotic chromosomes in a process essential for cell cycle progression. J Cell Sci. 109:143-153. 1996

3. Karamitopoulou E, Perentes E, Tolnay M, Probst A. (1998) Prognostic significance of MIB-1, p53, and bcl-2 immunoreactivity in meningiomas. Hum Pathol. 29(2):140-5. PMID: 9490273

4. Geyer FC, Rodrigues DN, Weigelt B and Reis-Filho JS. (2012) Molecular classification of estrogen receptor-positive/luminal breast cancers. Adv Anat Pathol. 19(1):39-53. PMID: 22156833

5. Ikenberg H, Bergeron C, Schmidt D, Griesser H, Alameda F, Angeloni C, Bogers J, Dachez R, Denton K, Hariri J, Keller T, von Knebel Doeberitz M, Neumann HH, Puig-Tintore LM, Sideri M, Rehm S, Ridder R; PALMS Study Group. (2013) Screening for cervical cancer precursors with p16/Ki-67 dual-stained cytology: results of the PALMS study. J Natl Cancer Inst. 105(20):1550-7. PMID: 24096620

Long Name

Antigen Identified by Monoclonal Antibody Ki67

Alternate Names

Ki-67, KIA, MIB-1, MKI67, PPP1R105, TSG126

Gene Symbol

MKI67

Additional Ki67/MKI67 Products

Product Documents for Ki67/MKI67 Antibody [DyLight 405]

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Download SDS

Product Specific Notices for Ki67/MKI67 Antibody [DyLight 405]



DyLight (R) is a trademark of Thermo Fisher Scientific Inc. and its subsidiaries.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Related Research Areas

Cancer Biomarkers
Cell Cycle

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FAQs for Ki67/MKI67 Antibody [DyLight 405]

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    • A: The concentration is lot specific available upon request.

    • A:  Optimal concentrations and conditions for each application should be determined by the user.
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