The configuration of Δ5,7,22-sterols in a tracheophyte |
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| Authors: | William R Nes Kenneth Krevitz Shamideh Behzadan Glenn W Patterson Josephine R Landrey Robert L Conner |
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| Institution: | Department of Biological Sciences, Drexel University Philadelphia, Pennsylvania 19104 USA;Department of Botany, University of Maryland College Park, Maryland 20742 USA;Department of Biology, Bryn Mawr College Bryn Mawr, Pennsylvania 19010 USA |
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| Abstract: | The epimer of ergosterol at C-24 was formed by the metabolism of 24α-methyl-cholesterol in the protozoan, . This is the first time 24-epiergosterol has been obtained in any manner. Its n.m.r. spectrum at 220 MHz was distinguishable from that of ergosterol. From the primitive tracheophyte, L., a 24-methyl-Δ5,7,22-sterol was isolated which proved to be ergosterol possibly containing its C-24 epimer as a minor constituent. |
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