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|Title:||Substitution of the ISP α subunit of biphenyl dioxygenase from Pseudomonas results in a modification of the enzyme activity|
|Authors:||Tan, H.-M. |
|Citation:||Tan, H.-M., Cheong, C.-M. (1994). Substitution of the ISP α subunit of biphenyl dioxygenase from Pseudomonas results in a modification of the enzyme activity. Biochemical and Biophysical Research Communications 204 (2) : 912-917. ScholarBank@NUS Repository.|
|Abstract:||We have constructed a hybrid multicomponent dioxygenase gene cluster in which the bphA1 gene, coding for ISP α subunit of biphenyl dioxygenase from Pseudomonas pseudoalcaligenes KF707, has been replaced by the bedC1 gene encoding the corresponding subunit of benzene dioxygenase from P. putida ML2. Escherichia coli cells containing the chimeric dioxygenase acquired the novel capability of producing indigo from indole. Furthermore, when compared to biphenyl dioxygenase, the hybrid dioxygenase enzyme was half as active towards benzene but exhibited only 4% activity when biphenyl was the substrate. The results implicate the ISP α subunit to be involved in substrate specificity and activity of the dioxygenase enzyme.|
|Source Title:||Biochemical and Biophysical Research Communications|
|Appears in Collections:||Staff Publications|
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