Anti-Ki-67 Antibody
Our Anti-Ki-67 chicken polyclonal primary antibody detects human Ki-67, and is IgY preparation. It is validated for use in ICC, WB.
Left: Immunofluorescence analysis of HeLa cells costained with chicken antibody to Ki-67 (1:2,000, red) and a mouse antibody to beta-tubulin. Ki-67 is predominantly localized in nucleoli of cells in interphase, while in mitotic cells Ki-67 is associated with condensed chromosomes. Ki-67 is not expressed in cells in quiescent G0 state. Blue: DAPI staining of nuclear DNA. Right: Western blot analysis of equal amounts of HeLa (Lane 2) and HEK293 (Lane 3) cell lysates using chicken antibody to Ki-67 (1:5,000). Double bands above 250 kDa correspond to two major Ki-67 isoforms of molecular weight ~345 and 395 kDa. Smaller fragments of these isoforms are also detected on the blot.
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SKU: C-1807-50
Product Details
Ki-67
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). Ref: uniprot.org
IgY preparation
Polyclonal
IgY
ICC, WB
Chicken
Recombinant human Ki-67 protein (mixture of amino acids 1-300 and 1,111-1,490) expressed in and purified from E. coli.
Human
Human
Spin vial briefly before opening. Reconstitute with 50 µL sterile-filtered, ultrapure water. Centrifuge to remove any insoluble material. Store lyophilized antibody at 2-8°C. After reconstitution divide into aliquots and store at -20°C for long-term storage. Store at 2-8°C short-term (up to 4 weeks) with an appropriate antibacterial agent. Avoid repetitive freeze/thaw cycles.
Lyophilized
Lyophilized IgY preparation, with sodium azide.
WB: 1:2000-1:5000
ICC: 1:1000-1:5000
ICC: 1:1000-1:5000
Unconjugated
Reacts with human only. Does not react with mouse or rat.
For research use only.
United States
12 months after date of receipt (unopened vial).
Proliferation marker protein Ki-67; Antigen identified by monoclonal antibody Ki-67; Antigen KI-67; Antigen Ki67
25°C (ambient)

