title: Fatty chains of alkenylacyl, alkylacyl and diacyl phospholipids in sea urchin spermatozoa.
abstract: 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.
authors.affiliation: Department of Biochemistry, Teikyo University School of Medicine, Tokyo, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Mita
authors.forename: N
authors.initials: N
authors.lastname: Ueta
mesh_terms: D000818:Animals; D008297:Male; D010713:Phosphatidylcholines / Q000032:analysis; D010714:Phosphatidylethanolamines / Q000032:analysis; D010718:Phosphatidylserines / Q000032:analysis; D010743:Phospholipids / Q000737:chemistry*; D010972:Platelet Activating Factor / Q000378:metabolism; D012617:Sea Urchins / Q000737:chemistry*; D013094:Spermatozoa / Q000737:chemistry* / Q000378:metabolism
chemical_list: D010713:Phosphatidylcholines; D010714:Phosphatidylethanolamines; D010718:Phosphatidylserines; D010743:Phospholipids; D010972:Platelet Activating Factor