The AccuOrange™ assay is a fluorescent dye-based assay. The dye binds to proteins primarily through hydrophobic interactions. Proteins denature upon heating; the dye binds to the exposed hydrophobic pockets of the protein after cooling. The free AccuOrange™ dye is fluorogenic due to non-radioactive decay but becomes highly fluorescent due to the rigid conformation inside the pocket.
The AccuOrange™ assay more sensitive than traditional protein quantitation assays such as BCA, Bradford and Lowry, and shows superior linearity and reproducibility than the NanoOrange® protein quantitation assay (Thermo Fisher Sci.), but has low tolerance for detergents like SDS and Triton® X-100.
Even though AccuOrange™ buffer does contain SDS, which is required for the dye to bind proteins, the assay is very sensitive to small changes in SDS concentration, and also cannot tolerate non-ionic detergents that form mixed micelles with SDS, like Triton®. Therefore we don’t recommend using the kit for cell lysates or other samples with significant amounts of detergents.
One-Step Lumitein™ UV Protein Gel Stain is a ready-to-use luminescent red protein gel stain optimized for use on UV transilluminators. With no fixation or wash steps required, One-Step Lumitein™ UV is a great choice for convenience and safety. One-Step Lumitein™ UV can detect as little as approximately 1-10 ng of protein per band.
One-step staining procedure, no fixation required
Non-toxic formulation is safe for easy disposal
Sensitive protein detection down to 1-10 ng
Optimized for use with a UV transilluminator
1 L and 4 L sizes
Store at 4°C
Fast and simple procedure
One-Step Lumitein™ UV gel staining requires only a single 5-30 minute staining step without fixation. Destaining is optional. One-Step Lumitein™ UV can detect as little as approximately 1-10 ng of protein per band depending on the staining method used, although staining intensity varies between proteins. Staining is fully compatible with mass spectrometry and Edman-based sequencing. Gels stained with One-Step Lumitein™ UV Protein Gel Stain can be visualized with a variety of different UV-based fluorescence imaging systems.
The results obtained with One-Step Lumitein™ UV are comparable to those with Oriole™ Fluorescent Gel Stain; however, One-Step Lumitein™ UV has a more convenient protocol, does not contain hazardous solvents, and does not cause gel shrinkage. Furthermore, One-Step Lumitein™ costs significantly less than other fluorescent protein gel stains. One-Step Lumitein™ UV Protein Gel Stain is available in 1 liter bottle or 4 liter Cubitainer® sizes.
One-Step Lumitein™ UV is non-toxic
One-Step Lumitein™ UV Protein Gel Stain offers safer handling and ease of disposal, because it is an aqueous-based solution that does not contain hazardous methanol or acetic acid. One-Step stains are certified under CCR Title 22 as non-toxic to the environment for drain disposal after a simple pH neutralization step.
One-Step Blue is a registered trademark of Biotium. Lumitein and its related technologies are covered by US and international patents. SYPRO is a registered trademark of Molecular Probes, Inc. Oriole and Flamingo are trademarks of Bio-Rad Laboratories. Cubitainer is a registered trademark of Hedwin Corporation.