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L L Barton

Publications and source records attributed to L L Barton.

At least 145 records · Page 8Linked to original sources
PubMed1977

Evidence for the presence of phosphoriboisomerase and ribulose-1,5-diphosphate carboxylase in extracts of Desulfovibrio vulgaris.

Cell extracts of Desulfovibrio vulgaris were found to incorporate 14CO2 into acid-stable products when ribose-5-phosphate or ribulose-1,5-diphosphate was used as a substrate. This CO2 fixation required adenosine triphosphate and produced 3-phosphoglyceric acid as one of the products. The assimilation of CO2 by pentose phosphates was unrelated to the pyruvate-CO2 exchange reaction. The pyruvate-CO2 exchange did not require adenosine triphosphate, did not produce phosphorylated compounds, and, unlike the pentose phosphate system, required an acidic protein fraction for activity.

Adenosine Triphosphate↗
PubMed1977

Nicotinamide adenine dinucleotide -- independent formate dehydrogenase in Mycobacterium phlei.

Formate dehydrogenase activity (EC 1.2.1.2) has been demonstrated in cell-free preparations of Mycobacterium phlei by following the reduction of 2,6 dichlorophenolindophenol. thiazolyl blue tetrazolium, or equine cytochrome c. The reduction of equine cytochrome c was inhibited by 2-heptyl-4-hydroxyquinoline-N-oxide. Neither nicotinamide adenine dinucleotide nor nicotinamide adenine dinucleotide phosphate were reduced by this formate dehydrogenase. The enzyme was constitutive and associated with the particular fraction. The greatest level of activity was observed at pH 9.0, with 8 mM formate, and with extracts of cells taken from the log phase of growth. Formaldehyde, hypophosphite, nitrate, and bicarbonate all inhibited the oxidation of formate.

2,6-Dichloroindophenol↗
PubMed1975

Hyperbilirubinaemia and bacterial infection in the newborn. A prospective study.

The incidence of bacterial infection associated with unexplained hyperbilirubinaemia was determined prospectively in 69 infants under 2 weeks of age. Blood and urine cultures were obtained from all patients, and 22 patients had their CSF cultured. Bacterial infection was documented in only 2 infants, who had asymptomatic Gram-negative urinary tract infection.

Ampicillin↗