Gelite™ Safe DNA Gel Stain *GelRed Replacement, 10,000X in DMSO*
Ordering information
| Price | |
| Catalog Number | |
| Unit Size | |
| Quantity |
Additional ordering information
| Telephone | 1-800-990-8053 |
| Fax | 1-800-609-2943 |
| sales@aatbio.com | |
| International | See distributors |
| Bulk request | Inquire |
| Custom size | Inquire |
| Shipping | Standard overnight for United States, inquire for international |
Physical properties
| Molecular weight | N/A |
| Solvent | Water |
Spectral properties
| Absorbance (nm) | 509 |
| Excitation (nm) | 513 |
| Emission (nm) | 552 |
Storage, safety and handling
| H-phrase | H303, H313, H333 |
| Hazard symbol | XN |
| Intended use | Research Use Only (RUO) |
| R-phrase | R20, R21, R22 |
| Storage | Freeze (< -15 °C); Minimize light exposure |
Alternative formats
Related products
| Overview |  SDSProtocol |
Molecular weight N/A | Absorbance (nm) 509 | Excitation (nm) 513 | Emission (nm) 552 |
AAT Bioquest is committed to designing our products to be environment-friendly. It is part of how we enable our customers to make the world healthier, cleaner, and safer. Ethidium bromide (EtBr) has been commonly used as a DNA stain for many years. However, EtBr is harmful if swallowed and is very toxic if inhaled. EtBr has been shown to be mutagenic in various tests and is an aquatic toxin. SYBR® Safe was introduced as a safer alternative to EtBr and SYBR® Green, but unfortunately, it is much less sensitive than SYBR® Green. It only has sensitivity comparable to EtBr. Gelite™ Safe has been developed specifically to be less hazardous than EtBr for staining DNA in agarose and acrylamide gels with much higher sensitivity. Gelite™ Safe has greatly improved safety and uncompromised sensitivity. The exceptional sensitivity and strong DNA binding affinity of Gelite™ Safe allows DNA to be stained prior to or post electrophoresis without destaining. In addition to its superior binding properties, Gelite™ Safe is essentially non-fluorescent in the absence of nucleic acids showing very low background fluorescence. Upon binding to nucleic acids, Gelite™ Safe exhibits a considerable fluorescence enhancement by several orders of magnitude greater than that of EtBr. Gelite™ Safe was optimized to be compatible with various instruments, including UV and blue-light transiluminators, gel documentation systems, and laser scanners. It is the first single formulation that can be used in either the green or red channel at your preference. Unlike the membrane-permeant SYBR® Green, which is highly toxic to cells and the environment, the membrane-impermeant properties of Gelite™ Safe make it a much safer and noncytotoxic alternative. Furthermore, Ames testing has confirmed Gelite™ Safe to be significantly less mutagenic than EtBr and SYBR® Green, even at concentrations well above the working concentration used for gel staining. Ames mutagenicity test was performed in a dose-dependent manner for all test dyes pretreated with an S9 fraction from rat liver (SYBR® is a trademark of ThermoFisher).
Platform
Gel Imager
| Excitation | UV Transilluminator/Blue laser |
| Emission | SYBR® filter, GelStar® filter, GelGreen® filter, or GelRed® filter |
Example protocol
PREPARATION OF WORKING SOLUTION
Gelite™ Safe working solution
Make 1X Gelite™ Safe working solution by diluting the 10,000X stock reagent with a buffer of your choice in a pH range of 7.5-8.5 (e.g., TAE, TBE, or TE, preferably pH 8.2).
Note: Staining solutions prepared in water are less stable than those prepared in buffer and must be used within 24 hours to ensure maximal staining sensitivity.
SAMPLE EXPERIMENTAL PROTOCOL
The following protocols are recommended. However, some comparisons might be made to determine which one better meets your needs.
Post-staining protocol
- Run gels according to your standard protocol.
Place the gel in a suitable polypropylene container. Gently add a sufficient amount of the 1X staining solution to submerge the gel.
Note: Do not use a glass container, as it will adsorb much of the dye in the staining solution.
Agitate the gel gently at room temperature for ~30 to 60 minutes. Protect the staining container from light.
Note: Destaining is not required. Image can be acquired without any wash steps.
- Image the gel with a 300 nm/254 nm ultraviolet transilluminator, or a laser-based gel scanner using a long path green filter such as a SYBR® filter, GelStar® filter, GelGreen® filter, or GelRed® filter.
Pre-staining protocol
- Prepare agarose gel solution using your standard protocol.
- Dilute the 10,000X Gelite™ Safe stock reagent into the gel solution at 1:10,000 just prior to pouring the gel and mix thoroughly.
- Run gels according to your standard protocol.
- Image the gel with a 300 nm/254 nm ultraviolet transilluminator, or a laser-based gel scanner using a long path green filter such as a SYBR® filter, GelStar® filter, GelGreen® filter, or GelRed® filter.
Spectrum
Open in Advanced Spectrum Viewer
Spectral properties
| Absorbance (nm) | 509 |
| Excitation (nm) | 513 |
| Emission (nm) | 552 |
Images
Figure 1. Comparison of Gelite™ Safe (1:25,000X dilution) and GelRed® (1:10,000X dilution) in precast gel staining using 1% agarose gel in TBE buffer. Two-fold serial dilutions of 1 kb DNA ladder were loaded in the amounts of 100 ng, 50 ng, 25 ng, 12 ng, 6 ng, 3 ng, 1.5 ng, and 0.7 ng from left to right. Gels were imaged using a 300 nm transilluminator in ChemiDoc™ Imaging System (Bio-Rad®).
Figure 2. Comparison of DNA detection in 1% agarose gel in TBE buffer using Gelite™ Safe and GelRed®. Two-fold serial dilutions of 1 kb DNA ladder were loaded in amounts of 100 ng, 50 ng, and 25 ng from left to right. Gels were stained for 60 minutes with Gelite™ Safe and GelRed™ (Biotium) according to the manufacturer's recommended concentrations and imaged using the ChemiDoc™ Imaging System (Bio-Rad®). Gels were illuminated using a 300 nm transilluminator fitted with an EtBr filter set.
Citations
View all 1 citations: Citation Explorer
BioAI for Anti-Infective Drug Discovery
Authors: Esquivel, Maria and Fernando, Johann and Fisher, Anna and Leong, Cameron and Weaver, Adam
Journal: (2022)
Authors: Esquivel, Maria and Fernando, Johann and Fisher, Anna and Leong, Cameron and Weaver, Adam
Journal: (2022)