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Cell membrane localization of sterols with conventional and unusual side chains in two marine demonsponges

Cell membrane localization of sterols with conventional and unusual side chains in two marine... Subcellular fractionation by differential centrifugation was performed on two previously unstudied marine sponges that predominantly contain either conventional (Reniera sp.) or unconventional (Pseudaxinyssa sp.) sterols. Direct evidence for the presence of unconventional sterols with C24 alkylated side chains in the cellular membranes ofPseudaxinyssa sp. is provided, but the presence of unconventional sterols in sponge membranes is shown not to be a universal feature of the Porifera. Possible structural and functional roles of unconventional lipid molecules in sponge cell membranes are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Lipids Wiley

Cell membrane localization of sterols with conventional and unusual side chains in two marine demonsponges

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References (40)

Publisher
Wiley
Copyright
© American Oil Chemists' Society
ISSN
0024-4201
eISSN
1558-9307
DOI
10.1007/BF02536216
Publisher site
See Article on Publisher Site

Abstract

Subcellular fractionation by differential centrifugation was performed on two previously unstudied marine sponges that predominantly contain either conventional (Reniera sp.) or unconventional (Pseudaxinyssa sp.) sterols. Direct evidence for the presence of unconventional sterols with C24 alkylated side chains in the cellular membranes ofPseudaxinyssa sp. is provided, but the presence of unconventional sterols in sponge membranes is shown not to be a universal feature of the Porifera. Possible structural and functional roles of unconventional lipid molecules in sponge cell membranes are discussed.

Journal

LipidsWiley

Published: Aug 1, 1988

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