Lipid composition of Limulus photoreceptor membranes.

Biochimica Et Biophysica Acta
R M BenolkenM B Maude

Abstract

The lipid composition has been determined for rhabdomeric photoreceptor membranes of Limulus, and these data are compared with those from photoreceptor membranes of albino rats. The comparison is of interest because the membranes of these two photoreceptor cells regulate ionic transport differently during the response to illumination. 1. Phospholipid class composition of Limulus is similar, but not identical, to that of rats. The major differences are a greater percentage of sphingomyelin in Limulus and a greater percentage of phosphatidylethanolamine in the rat. 2. Ethanolamine plasmalogens, not observed in rat photoreceptor membranes, are present in Limulus photoreceptor fractions. 3. The level of cholesterol in Limulus is higher than that usually reported for vertebrate rod outer segments. 4. The predominant polyunsaturated fatty acids of Limulus photoreceptor membrane phospholipids are 20: 4(n-6) and 20: 5(n-3) with only traces of 22: 6(n-3). This is in sharp contrast with the large percentages of 22: 6(n-3) found in rat photoreceptors. 5. The fatty acid distributions of both membrane systems are highly unsaturated, but the ratio of (n-3) to (n-6) polyunsaturates is only 1.7 for Limulus as compared to 4.6 for rat.

References

Sep 1, 1969·Proceedings of the National Academy of Sciences of the United States of America·W L Hubbell, H M McConnell
Jun 1, 1971·Proceedings of the National Academy of Sciences of the United States of America·B G McFarland, H M McConnell
Aug 1, 1974·The Journal of Cell Biology·C Bibb, R W Young
Jan 26, 1972·Nature: New Biology·H Heitzmann
Mar 15, 1972·Nature: New Biology·P K Brown
Feb 1, 1973·The Journal of Physiology·G Falk, P Fatt
Jan 1, 1972·Annual Review of Biophysics and Bioengineering·W A Hagins
Nov 28, 1973·Biochimica Et Biophysica Acta·F J Daemen
Apr 13, 1973·Biochimica Et Biophysica Acta·W T MasonE W Abrahamson
Dec 14, 1973·Science·D J LandisR E Anderson
May 1, 1974·The Journal of Cell Biology·C Bibb, R W Young
Apr 1, 1972·The Journal of General Physiology·P K Brown, R H White
Jan 1, 1965·Cold Spring Harbor Symposia on Quantitative Biology·W A Hagins
Jan 1, 1965·Cold Spring Harbor Symposia on Quantitative Biology·R L Purple, F A Dodge
May 1, 1970·Biophysical Journal·W A HaginsS Yoshikami
Sep 1, 1970·The Journal of General Physiology·J S McReynolds, A L Gorman
Oct 1, 1984·Proceedings of the National Academy of Sciences of the United States of America·G KunosL Tchakarov
Nov 1, 1954·American Journal of Clinical Pathology·B ZAKP J CHERNEY
Oct 1, 1958·A.M.A. Archives of Ophthalmology·N I KRINSKY
Nov 12, 1959·Annals of the New York Academy of Sciences·W H MILLER
Apr 16, 1960·Nature·R HUBBARD, G WALD
Jan 1, 1964·The Journal of General Physiology·T H GOLDSMITH, L T WARNER

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Citations

Jan 1, 1979·Comparative Biochemistry and Physiology. B, Comparative Biochemistry·R F Lee, F Gonsoulin
Feb 2, 2011·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Nicholas W RobertsThomas W Cronin
Sep 4, 1979·Biochimica Et Biophysica Acta·T Akino, M Tsuda
Jul 4, 1978·Biochimica Et Biophysica Acta·R E AndersonR D Wiegand
Mar 1, 1983·Experimental Eye Research·R D Wiegand, R E Anderson
Jul 11, 2018·Journal of Lipid Research·Martin-Paul AgbagaRobert E Anderson
Jan 1, 1982·Progress in Lipid Research·J Tinoco
Jan 1, 1983·Progress in Lipid Research·S J Fliesler, R E Anderson

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