Some features of beckman.com will be unavailable from 8:00 p.m. PDT Saturday, December 7 until 12:00 a.m. PDT, Sunday, December 8 for planned maintenance. During this time, you will not be able to log in to use account features such as online shopping, shopping lists and order tracking.
Please ensure your orders are processed prior to this maintenance period or contact Client Services for additional assistance.
Ki-67 nuclear antigen is associated with cell proliferation and is found throughout the cell cycle (G1, S, G2, M phases). It is never expressed by resting (G0) cells. The Ki-67 antigen is a human nuclear protein defined by its reactivity with monoclonal antibody from the Ki-67 clone. Two isoforms of 345 and 395 kDa have been identified by cDNA sequence coding. Deduced amino acid sequence analysis of the Ki-67 antigen confirmed that the cDNA encodes for a nuclear and short-lived protein without any significant homology to known sequences. The Ki-67 antigen is expressed at active phases of the cell cycle (G1, S, G2 and M phases), but it is absent in resting cells (G0 phase). The level of Ki-67 antigen expression varies during cell cycle and it has been correlated to several cell pathways: The Ki-67 decrease pathway is characterized by a declining Ki-67 staining and leads eventually to the exit from the active cell cycle (G0). If cells on this pathway get stimulated by growth factors, they can enter the Ki-67 increase pathway that brings the cells back into S phase. Cells following the Ki-67 stable pathway exhibit a constant intensity of Ki-67 staining during the G1 phase. This pathway is thought to correspond to optimal local growth conditions. The cellular localization of the Ki-67 protein is cell cycle phase dependent. During interphase, the antigen can be exclusively detected within the nucleus, whereas in M phase most of the protein is relocated to the surface of the chromosomes. The antigen is rapidly degraded as the cell enters the non proliferative state.
*Alexa Fluor and Pacific Blue are registered trademarks of Molecular Probes, Inc.
Ki-67, Nuclear Antigen Ki-67
Alexa Fluor* 488
Flow Product Line
Related Products or Parts
Customers Also Viewed
NOT ALL PRODUCTS ARE AVAILABLE IN ALL COUNTRIES
PRODUCT AVAILABILITY AND REGULATORY STATUS DEPENDS ON COUNTRY REGISTRATION PER APPLICABLE REGULATIONS
The listed regulatory status for products correspond to one of the below:
IVD: In Vitro Diagnostic Products. These products are labeled "For In Vitro Diagnostic Use."
ASR: Analyte Specific Reagents. These reagents are labeled "Analyte Specific Reagents. Analytical and performance characteristics are not established."
CE: Products intended for in vitro diagnostic use and conforming to European Directive (98/79/EC). (Note: Devices may be CE marked to other directives than (98/79/EC)
RUO: Research Use Only. These products are labeled "For Research Use Only. Not for use in diagnostic procedures."
LUO: Laboratory Use Only. These products are labeled "For Laboratory Use Only."
No Regulatory Status: Non-Medical Device or non-regulated articles. Not for use in diagnostic or therapeutic procedures.
Oops. The page you wanted could not be found, so we brought you to something similar. If you still can't find what you want, try searching our site instead.