Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Josephine R. Landrey"'
Publikováno v:
Journal of Biological Chemistry. 250:6998-7005
The addition of ergosterol to cultures of Tetrahymena pyriformis results in (a) the accumulation of the sterol by the cells; (b) the inhibition of the synthesis of the pentacyclic triterpenoid alcohol, tetrahymanol; (c) the replacement of tetrahymano
Publikováno v:
The Journal of Protozoology. 29:105-109
The size and fatty acid composition of Tetrahymena pyriformis W cells were influenced by the provision of a nutritional supplement of ergosterol, cholesterol, or tetrahymanol, but not of 20-isocholesterol. Ergosterol and cholesterol addition led to a
Publikováno v:
Journal of Biological Chemistry. 255:11815-11821
The ciliated protozoan Tetrahymena pyriformis was incubated with delta 5-sterols which has side chains varying in degree of branching, polarity, and length. Branching at neither end of the side chain was obligatory for metabolism, although removal of
Autor:
John M. Joseph, John H. Adler, Rosemarie Marcaccio-Joseph, Robert L. Conner, Josephine R. Landrey, Katherine A. Erickson, Jeffrey T. Billheimer, William R. Nes, Karla S. Ritter
Publikováno v:
Lipids. 17:257-262
The delta 5-sterol, androst-5-en-3 beta-ol, which has no side chain at C-17, did not permit molting of the insect Heliothis zea, growth of either the protozoan Tetrahymena pyriformis, or the yeast Saccharomyces cerevisiae adapted to anaerobic conditi
Publikováno v:
Journal of Natural Products. 46:274-276
Publikováno v:
Science. 169:880-882
The principal sterol synthesized by L-cell mouse fibroblasts is desmosterol. Cholesterol was not detected in these cells when they were grown in a sterol-free culture medium. These findings indicate that, in cells, cholesterol can be replaced by desm
Autor:
Josephine R. Landrey, Kenneth Krevitz, Robert L. Conner, Glenn W. Patterson, William R. Nes, Shamideh Behzadan
Publikováno v:
Biochemical and biophysical research communications. 66(4)
The epimer of ergosterol at C-24 was formed by the metabolism of 24α-methyl-cholesterol in the protozoan, Tetrahymena pyriformis . This is the first time 24-epiergosterol has been obtained in any manner. Its n.m.r. spectrum at 220 MHz was distinguis
Publikováno v:
Biochemical and biophysical research communications. 44(4)
The naturally occurring pentacyclic triterpene alcohol of Tetrahymena pyriformis , tetrahymanol, is replaced by ergosterol as a result of supplementation of the growth medium with that sterol. Since tetrahymanol is not metabolized by the ciliate, los