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A Toolkit to Enable Hydrocarbon Conversion in Aqueous Environments
Published on: October 2, 2012
Reductase gene sequences and protein structures: p-cymene methyl hydroxylase
1NHEERL, Gulf Ecology Division, U.S. EPA, Gulf Breeze, Florida 32561-5299, USA.
Biochemical and Biophysical Research Communications
|April 17, 1997
Summary
This study characterizes the methyl hydroxylase electron transport system in Pseudomonas aureofaciens, focusing on the cymA reductase. Findings reveal conserved protein structures in flavoprotein reductases across diverse organisms.
Area of Science:
- Biochemistry
- Microbiology
- Enzymology
Background:
- Oxygenases play a vital role in biosphere carbon cycling, relying on reductase enzymes, primarily flavoproteins.
- Protein sequence and folding present conserved themes across diverse oxygenase organisms and strains.
Purpose of the Study:
- To characterize the methyl hydroxylase electron transport system in the aerobe Pseudomonas aureofaciens.
- To investigate p-cymene as a convergence point for terpene-aromatic mineralization.
Main Methods:
- Isolation and sequencing of the cymA hydroxylase reductase gene from Pseudomonas aureofaciens.
- Deduction of the protein's primary structure.
- Amino acid sequence alignment of flavoprotein reductases.
Main Results:
- The cymA hydroxylase reductase gene was successfully isolated and sequenced.
- Primary protein structure analysis revealed conserved features.
- Optimized alignments showed significant similarities in NAD(P)H and flavin binding domains across prokaryotic and eukaryotic systems.
Conclusions:
- The study provides insights into the electron transport system of methyl hydroxylase reductases.
- Conserved structural elements in flavoprotein reductases suggest shared evolutionary origins and functional mechanisms.
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