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5 | 488 | 530/30 | 498 | 517 | (in buffer) 1 (in antifade) 4 | microscopy, flow cytometry, fluorescence microplate reader |
Fluorescein (FITC) derivatives are the most common fluorescent reagents for biological research because of their high absorptivity, excellent fluorescence quantum yield, and good water-solubility. Fluorescein-based dyes and their conjugates have several performance characteristics that may facilitate or limit use in certain applications. Fluorescein displays:
We offer a broad range of fluorescein conjugates and derivatives as well as a series of high-performance fluorophores with improved characteristics for labeling and detection.
Protein Labeling Reagents Selection Guide (NHS ester, maleimide, etc.) Search FITC secondary antibodies
Figure 1. HeLa cells were fixed and permeabilized using several Invitrogen products Image-iT Fixation/Permeabilization Kit then incubated with Anti-ATP Synthase Subunit IF1 and Goat anti-Mouse Highly Cross-Adsorbed Secondary Antibody, FITC. Cells were counterstained with NucBlue Live and ActinRed 555 then mounted using ProLong Gold Antifade Mountant and imaged using the EVOS M7000 Imaging System and a EVOS 40X Objective, coverslip-corrected
Figure 2. Flow cytometry analysis of Goat anti-Rabbit IgG (H+L) Cross-Adsorbed Secondary Antibody, FITC was performed using HeLa cells stained with HDAC4 Recombinant Rabbit Polyclonal Antibody. Cells were fixed with 70% ethanol for 10 minutes, permeabilized with 0.25% Triton X-100 for 20 minutes, and blocked with 5% BSA for 30 minutes at room temperature. Cells were labeled with HDAC4 Recombinant Rabbit Polyclonal Antibody or with rabbit isotype control at 3-5 µg/million cells in 2.5% BSA and incubated for 2 hours at room temperature. The cells were then labeled with Goat anti-Rabbit IgG (H+L) Cross-Adsorbed Secondary Antibody, FITC at a dilution of 1:500 for 1 hour at room temperature. A representative 10,000 cells were acquired and analyzed for each sample using the Attune NxT Acoustic Focusing Cytometer. Panels a, b and c represent cells stained with the secondary antibody alone, isotype control and HDAC4 Recombinant Rabbit Polyclonal Antibody respectively. Median fluorescence intensity from the three samples is compared in panel d.
Protocols that fit your needs in flow cytometry ranging from sample preparation to numerous cell stimulation conditions, staining, immunophenotyping, and data analysis strategies.
A handy reference poster featuring the broad range of our available dyes and labeling reagents.
Protocols that fit your needs in imaging ranging from sample and assay preparation to staining, labeling, and data analysis strategies.
A tool for selecting the optimal fluorescent dyes for your Invitrogen EVOS cell imaging systems.
Cy™ is a trademark or registered trademark of GE Healthcare.
Not for resale. Super Bright Polymer Dyes are sold under license from Becton, Dickinson and Company.
Brilliant Ultra Violet™ and Brilliant Violet™ are trademarks or registered trademarks of Becton, Dickinson and Company or its affiliates, and are used under license.
For Research Use Only. Not for use in diagnostic procedures.