The conformational dynamics of cytochrome P450 enzymes are critical to their catalytic activity. In this study, the correlated motion between residues in a 200 ns… Read More »Active-site residues move independently from the rest of the protein in a 200 ns molecular dynamics simulation of cytochrome P450 CYP119
BACKGROUND: People exposed to beryllium may develop beryllium sensitisation (BeS) and, in some cases, progress to chronic beryllium disease (CBD). OBJECTIVES: The objective of this… Read More »SELDI-TOF derived serum biomarkers failed to differentiate between patients with beryllium sensitisation and patients with chronic beryllium disease
OBJECTIVES: To identify biomarkers for cancer in asbestosis patients. METHODS: SELDI-TOF and CART were used to identify serum biomarker profiles in 35 asbestosis patients who… Read More »Proteomic detection of cancer in asbestosis patients using SELDI-TOF discovered serum protein biomarkers
Cytochrome P450 enzymes are versatile catalysts involved in a wide variety of biological processes from hormonal regulation and antibiotic synthesis to drug metabolism. A hallmark… Read More »Two-dimensional NMR and all-atom molecular dynamics of cytochrome P450 CYP119 reveal hidden conformational substates
Heme oxygenases (HO) catalyze the oxidative cleavage of heme to generate biliverdin, CO, and free iron. In humans, heme oxygenase-1 (hHO-1) is overexpressed in tumor… Read More »Isocyanides inhibit human heme oxygenases at the verdoheme stage
An approach based on an in silico analysis predicted that CYP77A4, a cytochrome P450 that so far has no identified function, might be a fatty… Read More »Arabidopsis thaliana CYP77A4 is the first cytochrome P450 able to catalyze the epoxidation of free fatty acids in plants
Conformational dynamics are thought to play an important role in ligand binding and catalysis by cytochrome P450 enzymes, but few techniques exist to examine them… Read More »Ligand-induced conformational heterogeneity of cytochrome P450 CYP119 identified by 2D NMR spectroscopy with the unnatural amino acid (13)C-p-methoxyphenylalanine
Nile Red is sequentially metabolized by cytochrome P4503A4 to the N-monoethyl and N-desethyl products, which typifies the metabolism of many amine containing drugs. Sequential metabolism… Read More »Spectral resolution of a second binding site for Nile Red on cytochrome P4503A4
Cytochrome P450 3A4 (CYP3A4) plays a critical role in the metabolism of many drugs. CYP3A4 exhibits extraordinary substrate promiscuity and unusual allosteric kinetics. In addition,… Read More »Nile Red is a fluorescent allosteric substrate of cytochrome P450 3A4
A fatty-acid-metabolizing enzyme from Arabidopsis thaliana, CYP94C1, belonging to the cytochrome P450 family was cloned and characterized. CYP94C1 was heterologously expressed in a Saccharomyces cerevisiae… Read More »Characterization of a methyl jasmonate and wounding-responsive cytochrome P450 of Arabidopsis thaliana catalyzing dicarboxylic fatty acid formation in vitro