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A safe, ready-to-use luminescent protein gel stain. Because it requires no fixation or wash steps, it is a big improvement on the original Lumitein™ protein gel stain.
One-Step Lumitein™ Protein Gel Stain is a ready-to-use luminescent red protein gel stain. It is a dramatically improved version of our original Lumitein™ protein gel stain in terms of convenience and safety. One-Step Lumitein™ can detect as little as approximately 1-10 ng of protein per band.
One-Step Lumitein™ gel staining requires only a single 5-60 minute staining step without fixation. Destaining is optional. One-Step Lumitein™ 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. Staining can be imaged using a UV transilluminator with EtBr or SYBR filter set, a blue light transilluminator, or a laser-based gel scanner.
One-Step Lumitein™ Protein Gel Stain offers safer handling and ease of disposal compared to other protein gel stains, 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. Furthermore, One-Step Lumitein™ costs significantly less than other fluorescent protein gel stains. One-Step Lumitein™ Protein Gel Stain is available in 1 liter bottle or 4 liter Cubitainer® sizes.

Red fluorescent One-Step Lumitein™ is an alternative to time-consuming and expensive SYPRO® Ruby protein gel stain, and it can be imaged on a UV box or fluorescence gel scanner
Please visit our Protein Gel Stains technology page to learn about our other safe and sensitive protein gel stains such as One-Step Lumitein™ UV, which is optimized for use with a UV transilluminator, and One-Step Blue™, a rapid, easy-to-use, non-toxic alternative to Coomassie staining for visible blue staining.
| Product | Replacement for | Catalog number | Unit size | Product protocol | Safety report |
|---|---|---|---|---|---|
| One-Step Blue® | Coomassie Brilliant Blue stains | 21003-1L | 1L | PI-21003 | One-Step Gel Stains Safety Report |
| One-Step Lumitein™ | SYPRO® Ruby Protein Gel Stain | 21004-1L | 1L | PI-21004 | |
| 21004-4L | 4L | ||||
| One-Step Lumitein™ UV | Oriole™ and Flamingo™ Protein Gel Stains | 21005-1L | 1L | PI-21005 | |
| 21005-4L | 4L |
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.
Gels stained with One-Step Blue® can be dried just like gels stained with Coomassie. The stain will not interfere with the detection of radiolabeled proteins.
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.