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A proton nuclear magnetic resonance investigation of histidine-binding protein J of Salmonella typhimurium: a model for transport of L-histidine across cytoplasmic membrane.
A model for the high-affinity transport of L-histidine across the cytoplasmic membrane of S typhimurium is proposed, which is a version of the pore model, which assumes that both P and Q proteins are membrane-bound and that the interface between these two proteins forms the channel for the passage of substrate. Expand
Syntheses of l‐β‐cyanoalanine‐4‐14C, l‐asparagine‐4‐14C, and l‐aspartic acid‐4‐14C
Syntheses are described from a common labeled intermediate of β-cyanoalanine, asparagine, and aspartic acid, each of the l configuration and labeled with carbon-14 in carbon-four. RadiochemicalExpand
Electron transfer polymers. XXIII. Interactions of the quinhydrone type in polyvinylhydroquinone solutions
An investigation was made of the pink-orange color that reaches maximum intensity at the midpoint of the titration of homopolymers of vinylhydroquinone. It was shown that during oxidative titrationExpand
Arylsulfimide Polymers. VI. Polysaccharins of the AA-BB Type
Abstract m-Bisaccharin and related derivatives have been condensed with p-phenyl-enediamine or benzidine. The polymerizations were carried out in melts and in solutions in dimethylacetamide and inExpand
Arylsulfimide Polymers. V. Polysaccharins of the A-B Type
Abstract 6-Aminosaccharin and related monomers were subjected to polymerization as melts and in solvents. The products from these studies passed through soluble, hemipolymer stages corresponding toExpand