Occurrence of unusual molecular species of sphingomyelin containing 28-34-carbon polyenoic fatty acids in ram spermatozoa

Author:

Poulos A1,Johnson D W1,Beckman K1,White I G2,Easton C3

Affiliation:

1. Department of Chemical Pathology, Adelaide Children's Hospital, 72 King William Road, North Adelaide, South Australia 5006

2. Department of Veterinary Physiology, Sydney University, Sydney, New South Wales 2000

3. Department of Organic Chemistry, University of Adelaide, North Terrace, Adelaide, South Australia 5000, Australia

Abstract

The high levels of very long chain fatty acids found in ram spermatozoa are located almost exclusively in one of two separable species of sphingomyelin. Mass spectral analysis, including fast atom bombardment of the purified sphingomyelin, has shown the fatty acids to have a carbon chain length of between 28 and 34, with between four and six double bonds, and to belong predominantly to the n-3 series.

Publisher

Portland Press Ltd.

Subject

Cell Biology,Molecular Biology,Biochemistry

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