... 2009 enzymology hydrogen tunnelling kinetics Mycobacterium tuberculosis nitric oxide synthase (NOS) quantum mechanics/molecular mechanics (QM/MM) Was there ever a time when enzymology and its development were so important to the progression of the biological sciences? With an explosion...

... efficacy D 2 dopamine receptor G-protein-coupled receptor (GPCR) G-protein cycle guanosine 5′-[γ-[ 35 S]thio]triphosphate-binding assay ([ 35 S]GTP[S]-binding assay) kinetics The actions of drugs at receptors depend on two events: the binding of the drug to the receptor and the response...

.... There is therefore a need to establish a specific measure of the kinetics of endogenous and exogenous TAG in the postprandial period. 1 To whom correspondence should be addressed (email [email protected] ). 11 1 2007 © 2007 Biochemical Society 2007 apolipoprotein kinetics postprandial...

... methods to ensure the routine detection and validation of allosteric ligands. 23 6 2004 © 2004 The Biochemical Society 2004 allosteric interaction drug discovery G-protein-coupled receptor kinetics ternary complex model The GPCRs (G-protein-coupled receptors) are the largest...

...A. Benians; M. Nobles; A. Tinker The RGS (regulators of G-protein signalling) protein family sharpen signalling kinetics through heterotrimeric G-proteins by enhancing the GTPase activity of the G-protein α subunit. Paradoxically, they also accelerate receptor-stimulated activation. We investigated...

...C. Krasel; J.-P. Vilardaga; M. Bünemann; M.J. Lohse The kinetics of G-protein-coupled receptor activation and deactivation has, so far, been measured only indirectly, most frequently by assessing the production of various second messengers. We have developed methods based on fluorescence resonance...

...M.J.C. Crabbe Kinetic studies on the AR (aldose reductase) protein have shown that it does not behave as a classical enzyme in relation to ring aldose sugars. As with non-enzymatic glycation reactions, there is probably a free-radical element involved derived from monosaccharide autoxidation...

... imaging kinetics membrane potential Abbreviations used: ϕ m , transmembrane potential difference; ϕ s , membrane surface potential; ϕ d , membrane dipole potential; FPE, fluorescein phosphatidylethanolamine; FHCVF, Flory-Huggins Corrected Volume-Fraction; GPCR, G-protein-coupled receptor; di...

... cytochromes, by stabilizing the one-electron reduced form of the flavin cofactors FAD and FMN. This stabilization gives rise to the blue semiquinone (sq) species (FADH . /FMNH . ), which is observed in both kinetic and equilibrium studies of CPR. The crystallographic structure of CPR suggests that the protein...

...A.G. McDonald Of the many examples of oscillatory kinetic behaviour known, several are briefly reviewed, including those of glycolysis, the peroxidase–oxidase reaction and oscillations in cellular calcium concentration. It is shown that simple mathematical models employing allosteric rate laws...

... the severe decrease in the enzyme activity characteristic of TPI deficiency nor the enhanced ability of the mutant enzyme from haemolysate of the propositus to associate with subcellular particles. Here we present kinetic (flux analysis), thermodynamic (microcalorimetry and fluorescence spectroscopy...