MUG is commonly used for the detection of Escherichia coli through its ability to detect activity of beta-glucuronidase (GUR), which is encoded by uidA. GUR activity is tested in minimal medium o-nitrophenyl-beta-D-galactopyranoside (MMO)-MUG. Fluorescence assay allows quantitation of GUS activity in protein extracts at peak excitation of 365 nm (UV) and a peak emission of 455 nm (blue).
Celebrity Endorsements
Jefferson, R.A. (1987) Assaying chimeric genes in plants: the GUS gene fusion system. Plant Molecular Biology Reporter. Volume 5, Number 4, 387-405.
-Discussion relating to the fluorogenic monitoring of gene expression including assay information utilizing MUG.
Sanderson, S.; Shastri, N. (1994) LacZ inducible, antigen/MHC-specific T cell hybrids. International Immunology, Vol 6, No 3, 369-376.
-The lacZ activity was obtained with the fluorescent MUG substrate which was 3 to 10-fold better than CPRG (chlorophenol red beta-galactoside) substrate during their experimental assays.
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