Why is SYBR Safe added to agarose gel?
Agarose gel electrophoresis is used to separate mixtures of DNA fragments into discrete bands according to their size. However, since DNA is clear and colorless, the bands cannot be seen with the naked eye. SYBR Safe® is a fluorescent DNA stain that binds specifically to the DNA double helix.
How do you make agarose gel with SYBR Safe?
- 1.1 Soak the gel in SYBR Safe™ stain. If using SYBR Safe™ gel stain concentrate, dilute 10,000X in TAE or TBE buffer (as appropriate) prior to use.
- 1.2 Incubate for 30 minutes.
- 2.1 Prepare the agarose gel directly in SYBR Safe™ DNA gel stain.
- 2.2 Run the gel.
Is SYBR Safe a gel loading dye?
SYBR™ Safe stain can be mixed into an agarose gel for staining during electrophoresis or the gel can be incubated in a solution of SYBR™ Safe stain following electrophoresis. SYBR™ Safe stain can be stored at room temperature in its original packaging to avoid excessive light exposure.
Why is SYBR Safe Safe?
SYBR®Safe is a commercial DNA stain manufactured by Invitrogen. It is marketed as being less harmful than ethidium bromide, but this is debatable. Its major advantage is that it is as sensitive as ethidium bromide but does not require UV light for visualization.
What does SYBR Safe stand for?
SYBR Safe is a cyanine dye used as a nucleic acid stain in molecular biology. SYBR Safe is one of a number of SYBR dyes made by the Life Technologies Corporation. SYBR Safe binds to DNA. The resulting DNA-dye-complex absorbs blue light (λmax = 509 nm) and emits green light (λmax = 524 nm). SYBR Safe.
How much SYBR is safe for DNA gel stain?
Add sufficient SYBR™ Safe DNA gel stain to cover the gel. A 50 mL volume is sufficient for staining most standard minigels. To stain larger gels, increase the volume of staining solution in proportion to the increased gel volume, and ensure that the gel is fully immersed during staining. 1.2 Incubate for 30 minutes.
What is the difference between SYBR Green and SYBR Safe?
SYBR Safe DNA Gel Stain was specifically developed as a safer alternative to ethidium bromide. Invitrogen SYBR Green I Nucleic Acid Gel Stain is an ultrasensitive stain for dsDNA, and Invitrogen SYBR Green II RNA Gel Stain is a highly sensitive stain for RNA and ssDNA.
Why is SYBR Green used in gel electrophoresis?
SYBR Green I is used for staining dsDNA and ssDNA. SYBR Green II will stain dsDNA and ssDNA but has better sensitivity for RNA. SYBR Gold was developed after SYBR Green I and II and is the most sensitive fluorescent gel stain.
Is SYBR Safe safer than ethidium bromide?
SYBR® Safe It is marketed as being less harmful than ethidium bromide, but this is debatable. Its major advantage is that it is as sensitive as ethidium bromide but does not require UV light for visualization. Toxicity: Documented as less mutagenic that ethidium bromide, but its acute toxicity is higher.
How sensitive is SYBR Safe?
What is the lower limit of detection of SYBR Safe DNA Gel Stain? SYBR Safe DNA Gel Stain yields the same sensitivity as ethidium bromide—roughly 500 pg/band in a minigel, for fragments larger than 200 bp viewed on a 300 nm transilluminator.
What is SYBR Safe made of?
SYBR Safe has a very similar structure to thiazole orange, which has a methyl group attached to the charged nitrogen, whereas SYBR Safe has an N-propyl group. Thiazole Orange has been shown to be three to four times less mutagenic than ethidium bromide whereas SYBR Safe is four to five times less mutagenic.
How safe is SYBR Safe?