WB
Western blot analysis of Chk1 on different lysates with Rabbit anti-Chk1 antibody at 1/1,000 dilution.
Lane 1: HeLa cell lysate,
Lane 2: K-562 cell lysate,
Lane 3: A431 cell lysate,
Lane 4: NIH/3T3 cell lysate,
Lane 5: PC-12 cell lysate,
Lysates/proteins at 20 µg/Lane.
Exposure time: 25 seconds;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody at 1/50,000 dilution was used for 1 hour at room temperature.
ICC/IF
Immunocytochemistry analysis of HeLa cells labeling Chk1 with Rabbit anti-Chk1 antibody at 1/50 dilution.
Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 5 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature. Cells were then incubated with Rabbit anti-Chk1 antibody at 1/50 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (488) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI.
Beta tubulin (red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (594) was used as the secondary antibody at 1/1,000 dilution.
IP
Chk1 was immunoprecipitated from 0.2 mg HeLa cell lysate with Rabbit anti-Chk1 antibody at 2 µg/25 µl agarose. Western blot was performed from the immunoprecipitate using Rabbit anti-Chk1 antibody at 1/1,000 dilution. Anti-Rabbit IgG for IP Nano-secondary antibody at 1/5,000 dilution was used for 1 hour at room temperature.
Lane 1: HeLa cell lysate (input),
Lane 2: Rabbit anti-Chk1 antibody IP in HeLa cell lysate,
Lane 3: Rabbit IgG instead of Rabbit anti-Chk1 antibody in HeLa cell lysate.
Blocking/Dilution buffer: 5% NFDM/TBST.
Exposure time: 20 seconds.