WB
Western blot analysis of Histone H3 (acetyl K4) on different lysates with Rabbit anti-Histone H3 (acetyl K4) antibody at 1/1,000 dilution and competitor's antibody at 1/1,000 dilution.
Lane 1: HeLa cell lysate,
Lane 2: HeLa treated with 500ng/mL TSA for 4 hours cell lysate,
Lane 3: NIH/3T3 cell lysate,
Lane 4: NIH/3T3 treated with 400nM TSA for 18 hours cell lysate,
Lysates/proteins at 20 µg/Lane.
Exposure time: 1 minute 22 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 and competitor's antibody at 1/1,000 dilution were 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 C6 cells treated with or without 500ng/mL TSA for 6 hours labeling Histone H3 (acetyl K4) with Rabbit anti-Histone H3 (acetyl K4) antibody at 1/1,000 dilution.
Cells were fixed in 4% paraformaldehyde for 20 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-Histone H3 (acetyl K4) antibody at 1/1,000 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.
DB
Dot blot analysis of Histone H3 (acetyl K4) on different proteins with Rabbit anti-Histone H3 (acetyl K4) antibody at 1/1,000 dilution. Goat Anti-Rabbit IgG - HRP Secondary Antibody at 1/50,000 dilution for 1 hour at room temperature.
Lane 1: Unmodified Histone H3 (negative),
Lane 2: Mono-Methyl-Histone H3 (Lys4) (negative),
Lane 3: Di-Methyl-Histone H3 (Lys4) (negative),
Lane 4: Tri-Methyl-Histone H3 (Lys4) (negative),
Lane 5: Acetyl-Histone H3 (Lys4) (positive),
Lane 6: Acetyl-Histone H3 (Lys9) (negative),
Lane 7: Acetyl-Histone H3 (Lys27) (negative),
Proteins loading: 100ng, 25ng, 5ng;
Blocking and dilution buffer: 5% NFDM/TBST;
Exposure time: 50 seconds.
ChIP
Chromatin immunoprecipitations were performed with cross-linked chromatin from HeLa cells treated 500ng/mL TSA for 4 hours with Histone H3 (acetyl K4) or Normal Rabbit IgG according to the ChIP protocol. The enriched DNA was quantified by real-time PCR using indicated primers. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.