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  1. 農学部
  1. 農学部
  2. 学術雑誌掲載論文 (農学部)

Stimulation of motility and respiration of intact fowl spermatozoa by calyculin A, a specific inhibitor of protein phosphatase-1 and -2A, via a Ca2+-dependent mechanism

http://hdl.handle.net/10458/715
http://hdl.handle.net/10458/715
599a470a-f0dd-48bc-9aef-a7fc3d94a5de
名前 / ファイル ライセンス アクション
ashizawa55.pdf ashizawa55.pdf (1.3 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2007-10-10
タイトル
タイトル Stimulation of motility and respiration of intact fowl spermatozoa by calyculin A, a specific inhibitor of protein phosphatase-1 and -2A, via a Ca2+-dependent mechanism
言語 en
言語
言語 eng
キーワード
言語 ja
主題Scheme Other
キーワード 精子
キーワード
言語 en
主題Scheme Other
キーワード sperm, spermatozoa, protein phosphorylation, protein dephosphorylation, motility, oxygen consumption, ATP concentration, calcium
資源タイプ
資源タイプ journal article
その他(別言語等)のタイトル
その他のタイトル Calyculin A and fowl sperm functions
言語 en
著者 芦沢, 幸二

× 芦沢, 幸二

WEKO 932

en Ashizawa, Koji

ja 芦沢, 幸二

ja-Kana アシザワ, コウジ


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Magome, A.

× Magome, A.

WEKO 2062

en Magome, A.

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續木, 靖浩

× 續木, 靖浩

WEKO 2104
e-Rad_Researcher 00236928

ja 續木, 靖浩

ja-Kana ツヅキ, ヤスヒロ

en Tsuzuki, Yasuhiro


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抄録
内容記述タイプ Abstract
内容記述 Intact fowl spermatozoa without addition of calyculin A, a specific inhibitor of protein phosphatase-1 (PP1) and -2A (PP2A), became almost immotile at 40°C. In contrast, the presence of 10-1000 nmol calyculin A 1-1 permitted activation of sperm motility in a dose-dependent manner. Calyculin A also stimulated the rate of sperm oxygen consumption, and induced a concomitant decrease in ATP concentrations, suggesting a coupling of ATP hydrolysis to the rate of oxidative phosphorylation. However, the motility and oxygen consumption of spermatozoa loaded with an intracellular Ca2+ chelator, 1,2-bis (2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid, tetraacetoxymethyl ester (BAPTA/AM), were not stimulated by calyculin A alone, but only after the subsequent addition of 2 mmol CaCl2 l-1. These results suggest that inhibition of the activities of endogenous PP1 and/or PP2A activities may stimulate the motility and metabolic activity of fowl spermatozoa at 40°C via a mechanism which requires intracellular free Ca2+.
言語 en
内容記述
内容記述タイプ Other
内容記述 Disclaimer. This is not the definitive version of record of this article. This manuscript has been accepted for publication in Reproduction, but the version presented here has not yet been copy edited, formatted or proofed. Consequently, neither Reproduction, the Society for Reproduction and Fertility nor its publisher, BioScientifica Ltd, accepts responsibility for any errors or omissions it may contain. The definitive version is now freely available at . 1995 Society for Reproduction and Fertility.
言語 en
書誌情報 en : Journal of reproduction and fertility

巻 105, 号 1, p. 109-114, 発行日 1995
ISSN
収録物識別子タイプ ISSN
収録物識別子 00224251
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA00705952
著者版フラグ
出版タイプ AM
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芦沢, 幸二, Magome, A., 續木, 靖浩, 1995, Stimulation of motility and respiration of intact fowl spermatozoa by calyculin A, a specific inhibitor of protein phosphatase-1 and -2A, via a Ca2+-dependent mechanism: 109–114 p.

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