FoxM1 in U2OS Human Cell Line. FoxM1 was detected in immersion fixed U2OS human osteosarcoma cell line using 10 µg/mL Sheep Anti-Human FoxM1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3975) for 3 hours at room temperature. Cells were stained with the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red; Catalog # NL010) and counterstained (green). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Detection of Human FoxM1 by Western Blot. Western blot shows lysates of U2OS human osteosarcoma cell line. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Human FoxM1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3975) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for FoxM1 at approximately 100 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
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.
FoxM1 (Forkhead box protein M1; also FKHL16, HFH11 and WIN) is a 90-100 kDa member of the winged helix transcription factor gene family. It is expressed in proliferating and tumor cells and promotes the transition from G1 to S phase and G2 to M phase within the cell cycle. Human FoxM1 is 763 amino acids (aa) in length. It contains three PEST sequences (aa 22-34, 460-472 and 478-515), a forkhead DNA binding domain (aa 235-327), a Pro/Ser/Thr-rich region (aa 480-513) and a phosphorylation site at Ser704. There are at least two splice variants. The first shows a 38 aa insertion after Val423. This blocks FoxM1 transcriptional activation activity. The second variant shows a deletion of aa 326-340. Over aa 642-763, human FoxM1 shares 73% aa identity with mouse FoxM1.
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