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BATCH NUMBER 115294 ORDER NUMBER -- NOT SPECIFIED -- DESCRIPTION OF THE PROBLEM more bands, unspecific SAMPLE Cell extract PRIMARY ANTIBODY Abcam, ab2098,Rabbit polyclonal 1:1000, 1h RT, wash 5 times a 5 min with Western wash DETECTION METHOD ECL POSITIVE AND NEGATIVE CONTROLS USED no, but other batches from you always worked fine ANTIBODY STORAGE CONDITIONS aliquoted a 20ul in -20 SAMPLE PREPARATION Ripa Buffer, Protese Inhibotors AMOUNT OF PROTEIN LOADED 20-50ug ELECTROPHORESIS/GEL CONDITIONS SDS-PAGE 10% TRANSFER AND BLOCKING CONDITIONS 1 hour blocking in 5% BSA in Western Wash Buffer SECONDARY ANTIBODY Jackson Immuno Research :Goat anti rabbit IgG-HRP 1:10.000, 1 hr, RT HOW MANY TIMES HAVE YOU TRIED THE APPLICATION? 20 HAVE YOU RUN A "NO PRIMARY" CONTROL? No DO YOU OBTAIN THE SAME RESULTS EVERY TIME? Yes WHAT STEPS HAVE YOU ALTERED? nothing altered, since we got fine results with other batch (we are out of this Antidody)
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ANSWER: |
Thank you for your enquiry. I am sorry to hear that you have been having difficulties with this antibody. The problems that you have been experiencing definitely appear to be batch related. I am certainly prepared to offer you a credit note against this purchase provided that the antibody was purchased within the past 90 days. If this is the case please email me details of the order including the order number and date of purchase. I look forward to hearing from you. |
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Customer's enquiry: Is the immunogen sequence available? |
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ANSWER: |
Sorry, the sequence is not available. |
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Is 85 mg/ml correct? |
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ANSWER: |
The protein concentration is 85 mg/ml. |
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I am interested in using either cyclin T1-ab2098 or cdk9-ab6544 in a chromatin immunoprecipitation assay using human B cells to identify binding by P-TEFb (PITALRE) in vivo. Have either antibody been used in this assay and which would you recommend trying of the two? Many thanks Dr. Julian knight |
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ANSWER: |
Neither of these antibodies has yet been tested for ChIP, although they work very well in standard IP. We are unable to suggest which of the two may be better. However, we would be very interested to hear the results and will reward you with an amazon.com gift certificate ($30) for you data. Good luck with your experiments, |
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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"
ab2098 (2µg/ml) staining Cyclin T1 in human lymph node using an automated system (DAKO Autostainer Plus). Using this protocol there is strong nuclear staining.
Sections were rehydrated and antigen retrieved with the Dako 3 in 1 AR buffer citrate pH6.1 in a DAKO PT link. Slides were peroxidase blocked in 3% H2O2 in methanol for 10 mins. They were then blocked with Dako Protein block for 10 minutes (containing casein 0.25% in PBS) then incubated with primary antibody for 20 min and detected with Dako envision flex amplification kit for 30 minutes. Colorimetric detection was completed with Diaminobenzidine for 5 minutes. Slides were counterstained with Haematoxylin and coverslipped under DePeX. Please note that, for manual staining, optimization of primary antibody concentration and incubation time is recommended. Signal amplification may be required.
Anti-Cyclin T1 antibody (ab2098) at 1/10000 dilution + HeLa (Human epithelial carcinoma cell line) Whole Cell Lysate at 10 µg
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.
Predicted band size : 81 kDa
Observed band size : 90 kDa (why is the actual band size different from the predicted?)
Additional bands at : 100 kDa,48 kDa,78 kDa. We are unsure as to the identity of these extra bands.
Exposure time : 16 minutes
The 90 kDa band observed is comparable to the molecular weight seen with other commercially available antibodies to Cyclin T1.
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