Comp Biochem Physiol B 1992 May 01;1021:15-8. doi: 10.1016/0305-0491(92)90265-s.

Fatty chains of alkenylacyl, alkylacyl and diacyl phospholipids in sea urchin spermatozoa.

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1. Alkenylacyl, alkylacyl and diacyl phospholipids were analyzed in the spermatozoa of the sea urchin, Hemicentrotus pulcherrimus. 2. Choline phosphoglycerides (CPG) contained alkylacyl component (19%) in addition to the diacyl component (81%), and alkenylacyl analog was present in a trace amount. The ethanolamine phosphoglycerides (EPG) contained alkenylacyl (51%), alkylacyl (2%) and diacyl (47%) components and the serine phosphoglycerides (SPG), alkylacyl (9%) and diacyl (91%) derivatives. 3. Analysis by gas-liquid chromatography indicated that the fatty chain at the 1-position in alkenylacyl, alkylacyl and diacyl compounds of CPG, EPG and SPG was mainly composed of saturated and monoenoic types (16:0, 18:0, 18:1 and 20:1). In contrast, considerable amounts of polyunsaturated types (20:4 and 20:5) were noted at the 2-position.

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Genes referenced: LOC100887844