WB
Western blot analysis using STAT3 antibody against Hela(1),Cos-7(2),K562(3),B16(4),Hepg2(5),THP-1(6),A549(7),Nih3t3(8) lysate,Rat spleen tissue(9),Rat testes tissue(10) .
12% SDS-PAGE gel.Sample loading: 20μg /lane. Transfer the proteins onto a PVDF membrane (
OM790003), and block it with TBST (
OM750016) plus skimmed milk powder(OM750084) for one hour. Dilute the primary antibody with the antibody diluent (
OM750012) at a ratio of 1:1000, and incubate it overnight at 4°C. Wash the membrane three times with TBST (
OM750016), 5 minutes each time. At room temperature, dilute the secondary antibody, Goat Anti-Mouse IgG (H&L) - HRP(
OM644366), at a ratio of 1:20000 and incubate for one hour. Wash the membrane three times with TBST (
OM750016) again, 5 minutes each time. Use ECL (
OM625701) for luminescence.staining time: 60S.
ELISA
Coat the plate with immunizing antigen.Blue line: Antibody; Orange line: Isotype control antibody
ICC/IF
Immunofluorescence analysis of U251 cells using STAT3 antibody (green). Blue: DAPI fluorescent DNA dye. Red: Actin filaments have been labeled with Omnimabs® 594-Phalloidin.Cells are fixed in 4% paraformaldehyde at room temperature for 15 minutes. Then, they are permeabilized with a PBS (OM750003) solution containing 0.1% Triton X-100(OM750021) at room temperature for 15 minutes. Subsequently, the cells are blocked with 10% non - immune goat serum(OM760028) at room temperature for 1 hour.The cells are incubated overnight at 4°C with the primary antibody diluted 1:100 in PBS. The secondary antibody, Omnimabs® 488 Goat Ant-Mouse IgG(H&L) (Green,OM643485), is diluted at a ratio of 1:400 and incubated with the cells for 1 hour.Nuclear DNA is labeled with DAPI (Blue,OM643160). F-actin is stained with Omnimabs® 594-Phalloidin (Red,OM750007) diluted 1:100 for 30 minutes