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Immunofluorescent analysis of HeLa cells using a CDK4 polyclonal antibody (Product # PA5-14445). HeLa cells were fixed with 4% PFA (20 min), permeabilized with Triton X-100 (0.1%, 10 min), then incubated with a CDK4 polyclonal antibody (Product # PA5-14445) (1:25, 1 hr at 37°C). Primary antibody was detected with fluor-conjugated donkey anti-rabbit secondary antibody (green) at 1:400 dilution for 50 min at 37°C). Actin filaments have been labeled with dye-conjugated phalloidin (red).
|Tested species reactivity||Human|
|Host / Isotype||Rabbit / IgG|
|Immunogen||KLH conjugated synthetic peptide between 273-305 amino acids from the C-terminal region of human CDK4|
|Purification||Ammonium sulfate precipitation, Size-exclusion - Dialysis|
|Contains||0.09% sodium azide|
|Storage Conditions||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C|
|Tested Applications||Dilution *|
|Flow Cytometry (Flow)||1:10-1:50|
|Immunohistochemistry (Paraffin) (IHC (P))||1:50-1:100|
|Western Blot (WB)||1:1000|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
CDK4 is a member of the Ser/Thr protein kinase family. This protein is highly similar to the gene products of S. cerevisiae cdc28 and S. pombe cdc2. It is a catalytic subunit of the protein kinase complex that is important for cell cycle G1 phase progression. The activity of this kinase is restricted to the G1-S phase, which is controlled by the regulatory subunits D-type cyclins and CDK inhibitor p16(INK4a). This kinase was shown to be responsible for the phosphorylation of retinoblastoma gene product (Rb). Mutations in this gene as well as in its related proteins including D-type cyclins, p16(INK4a) and Rb were all found to be associated with tumorigenesis of a variety of cancers. Multiple polyadenylation sites of the gene have been reported.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
cell division protein kinase 4
CDK4; CMM3; PSK-J3