Biotechnology and bioengineering, 87(6), 779-790 (2004-08-27)
After discovering that toluene 4-monooxygenase (T4MO) of Pseudomonas mendocina KR1 oxidizes nitrobenzene to 4-nitrocatechol, albeit at a very low rate, this reaction was improved using directed evolution and saturation mutagenesis. Screening 550 colonies from a random mutagenesis library generated by
Journal of applied microbiology, 88(5), 764-772 (2000-05-03)
Pseudomonas cepacia RKJ200 (now described as Burkholderia cepacia) has been shown to utilize p-nitrophenol (PNP) as sole carbon and energy source. The present work demonstrates that RKJ200 utilizes 4-nitrocatechol (NC) as the sole source of carbon, nitrogen and energy, and
p-Nitrophenol hydroxylation to p-nitrocatechol is a useful metabolic marker for the presence of functional cytochrome P450 2E1 in mammalian cell microsomes, but the assay is limited by the sensitivity of the spectrophotometric method used to monitor p-nitrocatechol formation. In this
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 8(3), 263-272 (2003-02-18)
Mn(II)-dependent 3,4-dihydroxyphenylacetate 2,3-dioxygenase (MndD) is an extradiol-cleaving catechol dioxygenase from Arthrobacter globiformis that has 82% sequence identity to and cleaves the same substrate (3,4-dihydroxyphenylacetic acid) as Fe(II)-dependent 3,4-dihydroxyphenylacetate 2,3-dioxygenase (HPCD) from Brevibacterium fuscum. We have observed that MndD binds the
Journal of hazardous materials, 181(1-3), 1010-1015 (2010-06-26)
Liquid-phase decomposition of 4-nitrophenol (4-NP) and formation of hydrogen peroxide (H(2)O(2)) induced by contact glow discharge electrolysis (CGDE) were investigated. Experimental results showed that the decays of 4-NP and total organic carbon (TOC) obeyed the first-order and pseudo-first-order reaction kinetics
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