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  • Phospholipase A2 in porifera

    Author(s)
    Nevalainen, TJ
    Quinn, RJ
    Hooper, JNA
    Griffith University Author(s)
    Quinn, Ronald J.
    Year published
    2004
    Metadata
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    Abstract
    Phospholipase A2 (PLA2) catalytic activity was measured in aqueous extracts of 83 freeze-dried specimens representing 55 marine sponge species collected from the east coast of Australia including the Great Barrier Reef. High levels (>500 u/l) of PLA2 activity (defined as the amount of activity that releases 1 孯l of fatty acid per min) were found in four out of 55 species (7%), moderate activities (100-499 u/l) in 6/55 (11%), low activities (1-99 u/l) in 11/55 (20%) and no PLA2 activity in 34/55 (62%). Species with high PLA2 activity levels included Cymbastela coralliophila (2118 u/l, specific activity 10 590 u/g of protein), ...
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    Phospholipase A2 (PLA2) catalytic activity was measured in aqueous extracts of 83 freeze-dried specimens representing 55 marine sponge species collected from the east coast of Australia including the Great Barrier Reef. High levels (>500 u/l) of PLA2 activity (defined as the amount of activity that releases 1 孯l of fatty acid per min) were found in four out of 55 species (7%), moderate activities (100-499 u/l) in 6/55 (11%), low activities (1-99 u/l) in 11/55 (20%) and no PLA2 activity in 34/55 (62%). Species with high PLA2 activity levels included Cymbastela coralliophila (2118 u/l, specific activity 10 590 u/g of protein), Acanthella cavernosa (1318 u/l, specific activity 2470 u/g), Spirastrella vagabunda (1036 u/l, specific activity 1727 u/g and Theonella swinhoei (567 u/l, specific activity 354 u/g). It was postulated that poriferan PLA2 may be involved in eicosanoid metabolism and antimicrobial and toxic defence of the animal.
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    Journal Title
    Comparative Biochemistry and Physiology Part B
    Volume
    137
    Publisher URI
    http://www.elsevier.com/wps/find/journaldescription.cws_home/525465/description#description
    DOI
    https://doi.org/10.1016/j.cbpc.2004.01.010
    Subject
    Biochemistry and cell biology
    Zoology
    History, heritage and archaeology
    Publication URI
    http://hdl.handle.net/10072/5054
    Collection
    • Journal articles

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