publication . Article . 2005

Characterization of phospholipase A2 from the pyloric ceca of two species of starfish, Coscinasterias acutispina and Plazaster borealis

Kishimura, Hideki; Hayashi, Kenji;
Open Access English
  • Published: 01 Sep 2005 Journal: Food Chemistry, volume 92, issue 3, pages 407-411 (issn: 0308-8146, Copyright policy)
  • Publisher: Elsevier Ltd.
Abstract
Phospholipase A (PLA) activities in the pyloric ceca and viscera from seven species of marine invertebrates (four starfish, one sea urchin, and two shellfish) were determined. Relatively high PLA specific activities were found in the pyloric ceca of two species of starfish (Coscinasterias acutispina and Plazaster borealis). Phospholipase A2s (PLA2s) were partially purified from the pyloric ceca of the starfish, C. acutispina PLA2 (C-PLA2) and P. borealis PLA2 (P-PLA2). The C-PLA2 and P-PLA2 mainly released oleic acid from 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine. Temperature optima of the C-PLA2 and P-PLA2 were at around 60 °C and 50 °C, respectively, an...
Subjects
mesheuropmc: lipids (amino acids, peptides, and proteins)
free text keywords: Pyloric cecum, Plazaster borealis, Phospholipase A2, Polar group specificity, Coscinasterias acutispina, Starfish, Marine invertebrate
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Article . 2005
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