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Highly purified recombinant GFP made in Escherichia coli
Our Abpromise guarantee covers the use of ab291 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|Flow Cyt||Use at an assay dependent concentration.|
|IP||Use at an assay dependent concentration.|
|ELISA||Use at an assay dependent concentration.|
|ICC/IF||Use a concentration of 0.5 µg/ml.|
|WB||Use a concentration of 0.5 µg/ml. Detects a band of approximately 27 kDa (predicted molecular weight: 27 kDa).|
ab291 staining GFP in GFP-transfected NIH3T3 cells. The cells were fixed with 4% formaldehyde (10min) and then blocked in 1% BSA / 0.3M glycine in 0.1%PBS-Tween for 1h. The cells were then incubated with ab291 at 1/200 dilution overnight at +4°C followed by incubation with ab150117, Goat Anti-Mouse IgG H&L (Alexa Fluor® 488), for 1 hour, at 1μg/ml.
Under identical experimental conditions, when compared to the basal level of GFP expression in transfected NIH3T3 cells, the cells upon which ab291 was applied gave a stronger signal in the 488 channel, indicating that ab291 is binding to GFP and therefore eliciting signal amplification.
ab291 was also applied to non-GFP-transfected NIH3T3 cells, which produced no positive staining, indicating specificity for GFP. Nuclear DNA was labelled with 1.43μM DAPI (blue).
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