X-Gal
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(New page: X-Gal is the common short name for 5-bromo-4-chloro-3-indolyl-β-D-galactopyranoside. It is a substrate for beta-galactosidase (lacZ) and turns blue upon being cleaved. It is commo...) |
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| - | X-Gal is the common short name for 5-bromo-4-chloro-3-indolyl-β-D-galactopyranoside. It is a substrate for [[beta-galactosidase]] (lacZ) and turns blue upon being cleaved. It is commonly used for blue-white screening. | + | X-Gal is the common short name for 5-bromo-4-chloro-3-indolyl-β-D-galactopyranoside. It is a substrate for [[beta-galactosidase]] (lacZ) and turns blue upon being cleaved. It is commonly used for blue-white screening or detection of LacZ transgenes in cells and tissues. |
| - | A stock solution of X-gal is commonly made with 20 mg/ml X-gal in DMF (dimethylformamide). When pouring agar plates, a typical final concentration is 20 μg/ml. | + | A stock solution of X-gal is commonly made with 20 mg/ml X-gal in DMF (dimethylformamide). When pouring agar plates, a typical final concentration is 20 μg/ml. Note that DMF is toxic. Take care when preparing X-Gal solution. Protect X-Gal from light to prevent degradation. |
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| + | ==Protocols using X-Gal== | ||
| + | *[[LacZ staining of cells]] | ||
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| + | ==Notes== | ||
| + | *Also may make stock solution with 50 mg in about 250 µl DMSO | ||
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| + | ==See also== | ||
| + | *[[Beta-galactosidase assay]] | ||
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| + | ==External links== | ||
| + | * S-Gal - a variation of X-Gal [http://www.sigmaaldrich.com/Area_of_Interest/Life_Science/Life_Science_Innovations/April_2001/April_2001_Feature_Article.html] | ||
[[Category:Material]] [[Category:Chemical]] | [[Category:Material]] [[Category:Chemical]] | ||
Current revision
X-Gal is the common short name for 5-bromo-4-chloro-3-indolyl-β-D-galactopyranoside. It is a substrate for beta-galactosidase (lacZ) and turns blue upon being cleaved. It is commonly used for blue-white screening or detection of LacZ transgenes in cells and tissues.
A stock solution of X-gal is commonly made with 20 mg/ml X-gal in DMF (dimethylformamide). When pouring agar plates, a typical final concentration is 20 μg/ml. Note that DMF is toxic. Take care when preparing X-Gal solution. Protect X-Gal from light to prevent degradation.
Contents |
Protocols using X-Gal
Notes
- Also may make stock solution with 50 mg in about 250 µl DMSO
See also
External links
- S-Gal - a variation of X-Gal [1]
