|Detection of p27/Kip1in Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells were stained with Goat Anti-Human p27/Kip1 Antigen Affinity‑purified Polyclonal Antibody (Catalog # AF2256, filled histogram) or control antibody (Catalog # AB‑108‑C, open histogram), followed by Phycoerythrin-conjugated Anti-Goat IgG Secondary Antibody (Catalog # F0107).|
|Detection of Human p27/Kip1 by Western Blot. Western blot shows lysates of MCF‑7 human breast cancer cell line and U2OS human osteosarcoma cell line. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human p27/Kip1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2256) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). A specific band was detected for p27/Kip1 at approximately 30 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.|
The cyclin-dependent kinase (cdk) inhibitor p27/Kip1 is a tumor suppressor protein that acts in the nucleus to enforce cell cycle checkpoints. p27/Kip1 binds to and inhibits many cyclin/cdk complexes, including cyclin D/cdk4, cyclin E/cdk2, and cyclin A/cdk2. This inhibition can subsequently block progression through different phases of the cell cycle.
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