• Species Reactivity

  Human

• Specificity

  Detects human Ki-67/MKI67 in directs ELISAS.

• Source

  Recombinant Monoclonal Rabbit IgG Clone # 1297A

• Purification

  Protein A or G purified from cell culture supernatant

• Immunogen

  Human Ki-67/MKI67 synthetic peptide    
  Accession # P46013

• Formulation

  Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.

• Label

  Unconjugated

Applications

• Recommended    
  Concentration

  Sample

• Immunohistochemistry

  3-25 µg/mL

  See below

• 
  

• Immunocytochemistry

  0.3-25 µg/mL

  See below

• 
  

• Intracellular Staining by Flow Cytometry

  0.25 µg/10    ⁶ cells

  See below

• 
  

• Knockout Validated

  Ki-67/MKI67 is specifically detected in Hela human cervical epithelial carcinoma parental cell line but is not detectable in Ki-67/MKI67 knockout HeLa cell line.

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Data Examples

Preparation and Storage

• Reconstitution

  Reconstitute at 0.5 mg/mL in sterile PBS.

• Shipping

  The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

• Stability & Storage

  Use a manual defrost freezer and avoid repeated freeze-thaw cycles.    

• 12 months from date of receipt, -20 to -70 °C as supplied.

• 1 month, 2 to 8 °C under sterile conditions after reconstitution.

• 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Ki-67/MKI67

MKI67 (also Ki-67) is a 350-400 kDa nuclear protein that belongs to a molecular group comprised of mitotic chromosome-associated proteins. Ki-67 was originally recognized as an antigen associated with the monoclonal Ki-67 antibody raised against Hodgkin's lymphoma nuclear material. Ki-67 is contextually expressed, being potentially found in all cells that are not in the Go phase of the cell cycle. Thus, MKI67 qualifies as a cell proliferation marker. Functionally, Ki-67 is known to interact with 160 kDa Hklp2, a protein that promotes centrosome separation and spindle bipolarity. It also directly interacts with NIFK, and apparently binds to UBF, thus playing a role in rRNA synthesis. Human MKI67 is 3256 amino acids (aa) in length. It contains one FHA domain (aa 8-98), followed by at least 24 utilized Ser/Thr phosphorylation sites and sixteen 120 aa repeats (aa 1000-2928) that are interspersed with at least 90 additional utilized phosphorylation sites. There are two potential isoform variants. One isoform is 315-345 kDa in size and shows a deletion of aa 136-495, while a second isoform contains a 58 aa substitution for aa 1-513. Over aa 3120-3256, human Ki-67 shares 46% aa sequence identity with the mouse ortholog to Ki-67.

• Long Name:

  Antigen Identified by Monoclonal Antibody Ki-67

• Entrez Gene IDs:

  4288 (Human); 17345 (Mouse); 291234 (Rat)

• Alternate Names:

  antigen identified by monoclonal Ki-67; antigen KI-67; Ki67; Ki-67; KIA; Marker Of Proliferation Ki-67; MIB-1; MKI67; PPP1R105; proliferation-related Ki-67 antigen; Protein Phosphatase 1; Regulatory Subunit 105; TSG126