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Revision as of 22:28, 21 September 2015
Heroin Esterase in RFC25
Heroin esterase, an acetylmorphine carboxylesterase, was isolated from Rhodococcus erythropolis strain H1 in 1994 from the garden soil at Cambridge and is able to use heroin as its sole carbon and energy source by deacetylating the C-3 and C-6 groups to form morphine1. The gene her encodes this enzyme and can be expressed in the chassis Escherichia coli2. The pH optimum for this enzyme is pH8.5 in bicine buffer1.
The activity of heroin esterase can be tested using 4-nitrophenyl acetate which is hydrolysed by heroin esterase to form 4-nitrophenol and acetate3. This produces a yellow colour which can be read at 410 nm.
Sequence and Features
Assembly Compatibility:
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21INCOMPATIBLE WITH RFC[21]Illegal BamHI site found at 21
Illegal BamHI site found at 777 - 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]