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Our Abpromise guarantee covers the use of ab5169 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||Use a concentration of 1 µg/ml. Detects a band of approximately 17 kDa (predicted molecular weight: 15 kDa).Can be blocked with Human Histone H3 (phospho S28) peptide (ab5499).|
|PepArr||Use a concentration of 0.02 - 0.002 µg/ml.|
|ICC||Use at an assay dependent concentration.|
This blot was produced using a 4-12% Bis-tris gel under the MES buffer system. The gel was run at 200V for 35 minutes before being transferred onto a Nitrocellulose membrane at 30V for 70 minutes. The membrane was then blocked for an hour using 2% Bovine Serum Albumin before being incubated with ab5169 overnight at 4°C. Antibody binding was detected using an anti-rabbit antibody conjugated to HRP, and visualised using ECL development solution ab133406.
All batches of ab5169 are tested in Peptide Array against peptides to different Histone H3 modifications. Six dilutions of each peptide are printed on to the Peptide Array in triplicate and results are averaged before being plotted on to a graph. Results show strong binding to Histone H3 - phospho S28 peptide (ab5499), indicating that this antibody specifically recognises the Histone H3 - phospho S28 modification.
ab17163 - Histone H3 unmodified
ab5499 - Histone H3 - phospho S28
ab11477 - Histone H3 - phospho S10
Indian Muntjac (top panel) and HeLa cells (bottom panel) immunofluorescently labelled with ab5169 (green) at a working dilution of 1/5000. The DNA is counterstained with DAPI and is shown in blue in the top panel and red in the bottom panel. This antibody gives a characteristic staining pattern for Histone H3 (phospho S28) whereby the signal increases in intensity during late G2 and continues to increase until metaphase. Upon entry into anaphase the signal begins to decrease until reaching basal levels by early G1. 100x magnification.
Image courtesy of Richelle Sopko, Harvard University, U.S.A.
0-4hr old wee shRNA embryos (lane 2) should display elevated phH3Ser28 levels relative to 0-4hr old EGFP shRNA embryos (lane 1). Blocked with 10% BSA.
In situ peptide competition was perfomed on paraformaldehyde-fixed HeLa cells. Four 25µl aliquots were made, to which 7.5µg (1.5µl) of no peptide, H3 unmodified peptide (ab2623), H3 phospho S10 peptide (ab11477) or H3 phospho S28 peptide (ab5499) was added, mixed by vortexing and incubated for 1 hour at room temperature. Cells on glass coverslips were fixed with 4% paraformaldehyde (10min) and gently washed twice with PBS, then permeabilized with 0.5% Triton X-100 in PBS (10min) and gently washed three times with PBS. The cells were immunofluorescently labeled with either the peptide-competed antibody or the control antibody (i.e. no peptide) for 30min at room temperature, washed briefly with PBS containing 0.1% Triton X-100 (1 min) and twice with PBS. The cells were then incubated with an appropriate dilution of a secondary antibody at room temperature for 30min, rinsed as above and mounted using a 90% glycerol in PBS mount