{"created":"2024-10-03T01:22:55.992592+00:00","id":2010877,"links":{},"metadata":{"_buckets":{"deposit":"006c7f6e-6222-45d5-95b4-b04a539413a8"},"_deposit":{"created_by":10,"id":"2010877","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2010877"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02010877","sets":["1:8:1724310835301"]},"author_link":["1182","1975","787","495"],"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008-12","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"7","bibliographicPageEnd":"97","bibliographicPageStart":"91","bibliographicVolumeNumber":"26","bibliographic_titles":[{"bibliographic_title":"水産総合研究センター研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of  Fisheries Research Agency","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Vitellogenin (Vg) is the precursor of egg yolk proteins in teleost species. Three forms of Vg genes and their transcripts appear to exist in barfin flounder, mosquitofish, and red seabream consisting of two forms of complete Vg (VgA and VgB) and a smaller Vg lacking a phosvitin domain (PvlVg, VgC). From cDNA sequencing analysis of the Vg gene, we clarified that species belonging to higher taxa, including Acanthopterygii and Paracanthopterygii, express all three forms of VgA, VgB and VgC. Both VgA and VgB cleaved into three classes of yolk proteins: lipovitellin, phosvitin and β’-component when they are incorporated into oocytes. VgA and VgB play distinct roles in the regulation of egg buoyancy in barfin flounder through selective proteolysis of their derivative yolk proteins in oocytes undergoing final oocyte maturation. Involvement of a cathepsin B-like enzyme in this maturation associated proteolysis was demonstrated by protease specification procedures. Measurement of ooplasm pH at different stages of oocyte maturation revealed drastic acidification of the ooplasm accompanied with yolk protein proteolysis and activation of cathepsin B. With respect to oocyte hydration for acquisition of egg buoyancy, cytoplasmic maturation events appear to be controlled by changes in the pH in maturating oocytes.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"水産総合研究センター","subitem_publisher_language":"ja"}]},"item_10002_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"fra_k_26_91","subitem_relation_type_select":"Local"}}]},"item_10002_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"日本農学文献記事索引（AgriKnowledge）"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://agriknowledge.affrc.go.jp/RN/2010770097","subitem_relation_type_select":"URI"}}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11589591","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1346-9894","subitem_source_identifier_type":"PISSN"}]},"item_10002_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open 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タカヒロ","creatorNameLang":"ja-Kana","creatorNameType":"Personal"}],"familyNames":[{"familyName":"Matsubara","familyNameLang":"en"},{"familyName":"松原","familyNameLang":"ja"},{"familyName":"マツバラ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Takahiro","givenNameLang":"en"},{"givenName":"孝博","givenNameLang":"ja"},{"givenName":"タカヒロ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"1975","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"60443389","nameIdentifierScheme":"e-Rad_Researcher","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=60443389"}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Okubo, Nobuyuki","creatorNameLang":"en"},{"creatorName":"大久保, 信幸","creatorNameLang":"ja"},{"creatorName":"オオクボ, 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teleosts.","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1724310835301"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-10-02"},"publish_date":"2024-10-02","publish_status":"0","recid":"2010877","relation_version_is_last":true,"title":["魚類における卵黄の蓄積・分解・利用機構の解明"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-03-31T02:36:45.242152+00:00"}