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ab13761 |
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ab87202 |
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Customer contacted us on 9/2/05: Customer reported no signal in WB. Made some suggestions - increase conc, extend incubation periods, etc. Also strongly suggested running a positive control, such as the recommended HL60 lysate. Said if that didn't work could offer a replac./refund. Today, he said that even with the positive control he is not seeing a signal. PO# 0001528283 |
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ANSWER: |
Thank you for your phone call and I'm sorry to hear that you are still experiencing difficulty with this vial of ab8228. With the HL60 whole cell lysate as a positive control, you should see a band at approximately 16 kDa. I have arranged for a free of charge replacement vial to be sent to your attention. It is order# 101169 and you will receive email confirmations regarding shipping. Please let me know how the replacement works out for you and if you have any additional questions.
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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"
ICC/IF image of ab8228 stained SH-SY-5Y cells. The cells were methanol fixed (5 min) and incubated with the antibody (ab8228, 1µg/ml) for 1h at room temperature. The secondary antibody (green) was Alexa Fluor® 488 goat anti-rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Image-iTTM FX Signal Enhancer was used as the primary blocking agent, 5% BSA (in TBS-T) was used for all other blocking steps. DAPI was used to stain the cell nuclei (blue). Alexa Fluor® 594 WGA was used to label plasma membranes (red).
ab8228 staining Survivin in human breast cancer tissue section by Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections). Tissue underwent fixation in formaldehyde, heat mediated antigen retrieval in Citrate buffer pH 6.0 and blocking (5 minutes/peroxidase block then 10 minutes/protein block) for 15 minutes at 20°C. The primary antibody was diluted, 1/250 (or 1/1500) and incubated with sample for 45 minutes at 20°C. A HRP conjugated goat polyclonal to rabbit IgG was used undiluted as secondary.
This image is courtesy of an Abreview submitted by Antibody Solutions Ltd.
ab8228 staining Survivin in human stomach cancer tissue section by Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections). Tissue underwent formaldehyde fixation before heat mediated antigen retrieval in EDTA for 30 minutes at 1000C. The primary antibody was diluted 1/200 and incubated with sample for 30 minutes at 25°C. A HRP conjugated goat polyclonal to rabbit IgG was used undiluted as secondary antibody.
This image is a courtesy of Anonymous Abreview
IHC image of Survivin staining in human lymphoma formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab8228, 5µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.
All lanes : Anti-Survivin antibody (ab8228) at 2 µg/ml
Lane 1 : HL60 (Human promyelocytic leukemia cell line) Whole Cell Lysate
Lane 2 :
Lysates/proteins at 20 µg per lane.
Secondary
Goat polyclonal Secondary Antibody to Rabbit IgG - H&L (HRP), pre-adsorbed (ab97080) at 1/5000 dilution
developed using the ECL technique
Performed under reducing conditions.
Observed band size : 16,18 kDa (why is the actual band size different from the predicted?)
Exposure time : 8 minutes
This antibody was blocked using 3% milk. Using a higher concentration of blocking buffer may help to further reduce non-specific bands.
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