1,721,044 research outputs found
Risonanza magnetica nucleare del 19F- nello studio di centri paramagnetici di molecole di interesse biologico.
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Deuterium distribution in lactate as tracer of metabolic pathways
No full text2H-NMR spectroscopy has been used to study the distribution of 2H atoms in brain lactate, after intraperitoneal injection of 2H2O. Information on brain metabolism was obtained from the ratio [(3-2H) lactate]/[(2-2H)-lactate] which was found very sensitive to the PO2 in the breathing air. The dependence of this ratio on the rates of metabolic pathways is an example of the possibility to use the distribution of 2H atoms in a molecule to probe metabolic flow through different pathways
Homology model building of the thyroid transcription factor 1 homeodomain
No full textA possible structure for the homeodomain of rat thyroid transcription factor 1 is proposed on the basis of the homology with other homeodomains whose structures have been solved by X-ray crystallography. A structure very similar to the reference ones is feasible and may account for the observed DNA-binding specificity. Structural features of the model, which are likely to be shared by other homeodomains, are discussed and may help researchers in the field to analyse their own experimental data
Superoxide ion as active intermediate in the autoxidation of ascorbate by molecular oxygen.
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