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Physiological Function of Free D-Alanine in Kuruma Prawn <i> Marsupenaeus japonicus</i>

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Other Title
  • クルマエビにおけるD-アラニンの機能解析
  • 抄録 クルマエビにおけるD-アラニンの機能解析
  • ショウロク クルマエビ ニ オケル D-アラニン ノ キノウ カイセキ
  • Physiological Function of Free D-Alanine in Kuruma Prawn Marsupenaeus japonicus

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Abstract

D-Amino acids have long been considered to be unique to microorganisms, which utilize some D-amino acids to construct the peptidoglycan layer of their cell wall. However, several D-amino acids have been detected in many organisms and even in mammals. Aquatic crustaceans and some bivalve mollusks contain a large amount of free D-alanine in their tissues. Along with the hyper-osmotic stress, several free amino acids have been known to increase as intracellular osmolytes in aquatic invertebrates, and the tissue levels of D- and L-alanine in crustaceans and bivalve mollusks were both increased during high salinity acclimation. These data suggest that D-alanine is also a major compatible osmolyte responsible for intracellular isosmotic regulation. Alanine racemase has been proven to catalyze the interconversion of D- and L-alanine in crustacean. A cDNA clone encoding alanine racemase has been isolated from the muscle and hepatopancreas of kuruma prawn Marsupenaeus japonicus for the first time in the animal kingdom.<br>In this article, I would like to describe the physiological function and metabolism of D-alanine in kuruma prawn Marsupenaeus japonicus.

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Details

  • CRID
    1390001205232883968
  • NII Article ID
    130003397221
  • NII Book ID
    AA12034071
  • DOI
    10.5939/sjws.14003
  • ISSN
    21863776
    13494449
  • NDL BIB ID
    026833208
  • Text Lang
    ja
  • Data Source
    • JaLC
    • NDL
    • Crossref
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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