Photophosphorylation, the light dependent formation of adenosine triphosphate from adenosine diphosphate and inorganic phosphate, has been shown to be essentially an irreversible reaction (1). This conclusion was based mainly on the absence of exchange between adenosine triphosphate and inorganic phosphate, or between adenosine diphosphate and adenosine triphosphate (2, 3). In these respects, p...

Tracheal submucosal glands are of great relative importance in the secretion of chloride and water to the airway lumen. This study aimed to examine whether the cystic fibrosis transmembrane conductance regulator (CFTR) is involved in cyclic adenosine monophosphate (cAMP) or Ca2+-activated Cl- secretion. Regulation of Cl- secretion in cell cultures derived from pig tracheal submucosal gland acin...

Inflammation is induced because of interplay among multiple signaling pathways and molecules during infectious and noninfectious tissue injuries. Crosstalk between Toll-like receptor-4 signaling and the neuronal apoptosis inhibitor protein, major histocompatibility class 2 transcription activator, incompatibility locus protein from Podospora anserina, and telomerase-associated protein (NACHT), ...

A styrylpyridine-containing cyclophane with diethylenetriamine linkers is presented as a host system whose association representative nucleotides was examined photometric and fluorimetric titrations. The spectrometric titrations revealed the formation of 1:1 complexes log Kb values in range 2.3–3.2 for pyrimidine TMP (thymidine monophosphate), TTP triphosphate) CMP (cytidine monophosphate) 3.8–...

Phosphoinositidase C activities sensitive to purine and pyrimidine nucleotides have been identified earlier in ampulla from Rana ridibunda semicircular canal. The aim of this study was to characterize the pharmacological properties of other P2 receptors borne by this structure. A microassay was developed to measure the binding of [35S]adenosine 5'- O-(2-thiodiphosphate) ([35S]ADPβS) to a few am...

Wood, J. M. (University of Illinois, Urbana), and R. S. Wolfe. Components required for the formation of CH(4) from methylcobalamin by extracts of Methanobacillus omelianskii. J. Bacteriol. 92:696-700. 1966.-Optimal conditions for the formation of CH(4) from methylcobalamin (methyl-cobalt-5,6-dimethylbenzimidazolylcobamide) by partially purified extracts of Methanobacillus omelianskii (Methanoba...

Molar growth yields were determined from chemostat cultures of Hydrogenomonas eutropha on succinate and on fumarate. The yields from culture on succinate were about 12 g higher than on fumarate. Assuming this difference to be equivalent to 1 molecule of adenosine triphosphate, it is concluded that the oxidation by oxygen of the Hydrogenomonas cytochrome b yields 1 molecule of adenosine triphosp...

BACKGROUND AND PURPOSE To investigate the effects of hypothermia on the rate of change and degree of recovery of brain adenosine triphosphate and phosphocreatine concentrations and intracellular pH, we have developed a model that allows phosphorus nuclear magnetic resonance spectroscopy of the intact piglet brain during circulatory arrest. METHODS Three groups of piglets were studied. Three c...