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Ki-67 is a nuclear protein associated with cell proliferation. It is expressed during all active phases of the cell cycle but not in resting cells, making it a key marker for assessing growth fractions in tissues and tumors.
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Formalin fixed paraffin embedded human tonsil stained with Ki-67 (SP6) antibody
| Regulatory Status |
RUO – Research Use Only |
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Last modified: June 6, 2025