REARRANGEMENT STUDIES WITH C14: XV. ETHYL-2-C14 IODIDE FROM THE IRRADIATION OF ETHYL-1-C14 IODIDE WITH COBALT-60 GAMMA RAYS

One-step preparation of C14-cyanide from barium carbonate-C14.

News and Notes Eighth Annual Calorimetry Conference; Symposium on the Role of Proteins in Ion Transport Across Membranes.. 710 Technical Papers One-Step Preparation of C14-Cyanide from Barium Carbonate-C14: J. K. Jeanes .719 Evaluation of Oral Temperature Readings: Francis L. Harmon.. 719 Use of the Thymus Gland in Chicks to Elucidate Interrelationships Between Pteroylglutamic Acid and Biologic...

The incorporation of formate-C14, glycine-2-C14, adenine-4, 6-C14, and phosphate-P32 into nucleic acids.

nine labeled either with C'4 or N'5. Considerable controversy has developed as to which one of these tracer compounds gives an accurate measurement of the “relativeturnover-rate― of the nucleic acids. In order to determine the “absolute turnover rate― of the nucleic acids, it is necessary to know the specific activity of the immediate precursor of the nucleic acids. Since even the ident...

Metabolism of Coprostanol-c14 and Cholestanol-4-c14 in Man.

Metabolism of pyruvic acid-2-C14 and hydroxypyruvic acid-2-C14 in algae.

The metabolism of pyruvic acid in the light and dark by Scenedesmus has been examined with two aims: to study the relationship of its metabolism to that of the intermediates of C1402 fixation and to compare its metabolic fate with that of hydroxypyruvate. The metabolism of hydroxypyruvic acid was compared with that of C1402 fixation in order to ascertain whether it might be a photosynthetic int...

Studies on fluorinated pyrimidines. III. The metabolism of 5-fluorouracil-2-C14 and 5-fluoroorotic-2-C14 acid in vivo.

As one of the initial steps towards the determi nation of the metabolism and mechanism of action of fluorinated pyrimidines, 5-fluorouracil and 5fluoroorotic acid were labeled with radiocarbon in the 2-carbon atom. We have previously reported briefly that fluorouracil is incorporated, as such, into the combined nucleic acids of mouse liver, spleen, and Ehrlich ascites cells (9). The present rep...