Anti-Metnase 抗体 (ab3823)

Thank you very much for your patience. The only suggestion that I have at this point (you have done pretty much everything!) is to try blocking with 3% BSA instead. The originator didn't see high background with this antibody and used a more sensitive detection system (ECL plus). Did you buy the antibody directly from us or from a distributor, such as Novus Biologicals? And what was the date? I'm not coming up with a record of this antibody being bought from your school. Thanks...

The samples (in 1.5ml microtubes) were simply put into boiling water. So I would expect the temperature to be almost exactly 100 degrees centigrade.

As stated on the datasheet we used the following conditions to get our result: ab3823 staining (2µg/ml) of Daudi lysate (RIPA buffer, 30µg total protein per lane). Primary incubated for 12 hours. Detected by western blot using chemiluminescence However additional information about our protocol is given below: - Lysis. Cell pellets were washed with ice-cold PBS. 1 ml of RIPA buffer was added per 1E8 cells and incubated on ice for 20 min, vortexing 2-3 times, briefly. The lysate was aliquotted into 1.5 ml microfuge tubes and centrifuged at 13,000 rpm for 5 min in a microfuge. The supernatant was transferred into clean tubes and its protein concentration was measured with BioRad protein assay. The concentration was then adjusted to 5 mg/ml with RIPA lysis buffer. An equal volume of 2 x SDS sample buffer was then added and the cell lysate was boiled for 5 minutes. Lysates were stored at -80C until use.(RIPA buffer = 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1 mM PMSF, 1 mM EDTA, 5 µg/ml Aprotinin, 5 µg/ml Leupeptin, 1% Triton -100, 1% Sodium deoxycholate, 0.1% SDS). - SDS PAGE. Samples were run at 200V constant on a 12% acrylamide SDS-PAGE mini gel - using Biorad Mini-Protean 3 kit and protocols. Before loading samples had 5% (v/v) 2-ME added and were boiled for 3 minutes. - Transfer. We used a Biorad Mini Trans-Blot, constant 100 V for 1 hour. Transfer Buffer was 20 mM Tris pH 8.0, 150 mM Glycine, 10% Methanol. We transferred to Millipore PVDF membrane and stained with Ponceau Red to evaluate the transfer. - Staining. The membrane was blocked in 2.5% skimmed milk in TBS-T (TBS + 0.05% Tween-20) for 1 hr at room temperature with agitation. Primary antibody was incubated for 1 hr at room temperature with agitation. We used anti-goat-HRP at 1:3000 for 1 hr at room temperature with agitation. We washed with TBST three times after primary and secondary antibody, each wash lasting for 5-10 mins. ECL-plus (Amersham) was used rather than ECL, which is considerably more sensitive. Final detection was on autoradiography film.