Anti-Ki-67 Antibody

Mouse Monoclonal Antibody specific to Ki-67

Product Specifications

CAS Number

9007-83-4

Product Name Alternative

Antigen identified by monoclonal antibody Ki-67, Antigen KI-67, Antigen Ki67

Gene Name

MKI67

NCBI Gene ID

UniProt

P46013

Cellular Locus

Chromosome, Nucleus, Nucleus, nucleolus

Host

Mouse

Reactivity

Human

Immunogen

Recombinant human Ki-67.

Target Antigen

Proliferation marker protein Ki-67

Target

Ki-67

Clonality

Monoclonal

Isotype

IgG1

Type

Antibody

Applications

IHC

Field of Research

Cancer research

Purification Method

Purified by immunoaffinity chromatography

Concentration

Lot Specific

Dilution

Dilute in PBS or medium that is identical to that used in the assay system.

Format

Purified

Form

Liquid

Buffer

Tris

Function

Required to maintain individual mitotic chromosomes dispersed in the cytoplasm following nuclear envelope disassembly (PubMed:27362226). Associates with the surface of the mitotic chromosome, the perichromosomal layer, and covers a substantial fraction of the chromosome surface (PubMed:27362226). 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). 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 (PubMed:24867636). It is however unclear whether it plays a direct role in chromatin organization or whether it is an indirect consequence of its function in maintaining mitotic chromosomes dispersed (Probable). {UniProtKB:E9PVX6, PubMed:10878551, PubMed:24867636, PubMed:27362226}.

Additionnal Information

<br><br>Immunohistochemistry: use at a dilution of 1:100-1:200 on formalin-fixed, paraffin-embedded samples after heat-induced epitope retrieval at pH 9 for 10-30 minutes.

Storage Conditions

Store at 2-8°C. Do not freeze.

Specificity

Human Ki-67. Reactivity with other species has not been investigated.

Formulation

Tris buffer, pH 7.3-7.7, 1% BSA, 0.1% sodium azide.

Buffer pH

pH 7.3-7.7

Target Background

Ki-67 is a nuclear, non-histone protein that is expressed only during active phases of the cell cycle (G1, S, G2, and M), but not in the resting phases of G0 and G1 early phase. Although it has been associated with ribosomal RNA transcription, it is strongly linked to cell proliferation and has been used as an effective marker in grading proliferation rate of tumors including those of brain, breast, cervix, and prostate.