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A simple three-step procedure converted the readily accessible (2-bromo-1,1-difluoroethyl)arenes into a-aryl-a,a-difluoroacetaldehydes. Subsequent hydrocyanation, hydrolysis, oxidn. and again hydrolysis afforded b-aryl-b,b-difluoro-a-oxopropionic acids. Re ...
The synthesis of novel hybrid hydrogels by stepwise copolymn. of multi-arm vinyl sulfone-terminated poly(ethylene glycol) macromers and a-w cysteine oligopeptides via Michael-type addns. is described. Crosslinking kinetics, studied by in situ rheometry, ca ...
L-lysine is an essential a-amino acid and a necessary building block for all proteins in the body. As an essential amino acid, L-lysine is not synthesized by humans or animals. Industrially produced L-lysine has therefore a big market as food additive, e.g ...
Some models of brain energy metabolism used to interpret in vivo (13)C nuclear magnetic resonance spectroscopic data assume that intramitochondrial alpha-ketoglutarate is in rapid isotopic equilibrium with total brain glutamate, most of which is cytosolic. ...
Recently, using a numerical surface cooling approach, we have shown that highly energetic discrete breathers (DBs) can form in the stiffest parts of nonlinear network models of large protein structures. In the present study, using an analytical approach, w ...
Split-protein sensors have become an important tool for the anal. of protein-protein interactions in living cells. We present here a combinatorial method for the generation of new split-protein sensors and demonstrate its application toward the (b/a)8-barr ...
Information about the enzyme kinetics in a metabolic network will enable understanding of the function of the network and quant. prediction of the network responses to genetic and environmental perturbations. Despite recent advances in exptl. techniques, s ...
A visible-pump/UV-probe transient absorption is used to characterize the ultrafast dynamics of bacteriorhodopsin with 80-fs time resoln. We identify three spectral components in the 265- to 310-nm region, related to the all-trans retinal, tryptophan (Trp)- ...
Localized (13)C NMR spectra were obtained from the rat brain in vivo over a broad spectral range (15-100 ppm) with minimal chemical-shift displacement error (
Ligand-gated ion channels of the Cys loop family are receptors for small amine-contg. neurotransmitters. Charged amino acids are strongly conserved in the ligand-binding domain of these receptor proteins. To investigate the role of particular residues in l ...
