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2012 Fiscal Year Annual Research Report

Multidirectional evolution of mitochondria

Planned Research

Project Area"Matryoshka"-type evolution of eukaryotes
Project/Area Number 23117005
Research InstitutionNational Institute of Infectious Diseases

Principal Investigator

野崎 智義  国立感染症研究所, 寄生動物部, 部長 (60198588)

Co-Investigator(Kenkyū-buntansha) 橋本 哲男  筑波大学, 生命環境科学研究科(系), 教授 (50208451)
黒田 誠  国立感染症研究所, 病原体ゲノム解析研究センター, センター長 (80317411)
Project Period (FY) 2011-04-01 – 2016-03-31
Keywordsミトコンドリア / 嫌気 / 輸送 / 分裂 / 進化
Outline of Annual Research Achievements

多様な生態・環境の中で独自に進化を遂げたミトコンドリアの構成・タンパク質輸送・機能とその祖先(由来)を解明し、ミトコンドリアの独自進化が宿主に授けた能力・依存を理解することにより、ミトコンドリアの「マトリョーシカ型進化原理」を確立する。具体的には、嫌気的環境に適応した赤痢アメーバのマイトソームへの輸送・分裂・機能の分子機構と進化の系譜を解明する。本年度は特に赤痢アメーバのマイトソームへのタンパク質輸送の分子機構を解明することに成功した。マイトソームの外膜タンパク質であるTom40を標識したタンパク質を発現する赤痢アメーバ形質転換体から免疫沈降法で複合体を精製し、質量分析により、Tom60と名付けて新規タンパク質を同定した。更にTom60のマイトソームへの局在を免疫電子顕微鏡および細胞分画・イムノブロットにより証明した。更に、マイトソームマトリクスタンパク質がインビトロでTom60と直接的に、間接的に結合することを証明した。本研究成果は高度に機能分化したミトコンドリアにおいて、新規の受容体・輸送体が機能することを示した最初の例であり、真核生物・オルガネラの進化の理解に対して大きなインパクトをもっている。更に、多様な生態・環境に適応したカルペディオモナス様生物を含む複数種類の自由生活性嫌気性原生生物を材料として、EST, ゲノム解析を継続した。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

当初のマイトソームへのタンパク質輸送機構に関して新たなコンポーネントを同定し、機能を証明するなど、インパクトの高い成果を挙げた。また自由生活性原生生物のEST, genome情報も確実に獲得されている。これらのマイトソームの解析や赤痢アメーバのマイトソームの分裂に係る分子の機能解析等に関しては3年次以降の仮題となる。

Strategy for Future Research Activity

赤痢アメーバの高度変異ミトコンドリアであるマイトソームへのタンパク質輸送の分子機構をより深く理解することを目的として、外膜および内膜のスーパー複合体を獲得する方法を確立する。赤痢アメーバにプロテインAを付加したATPスルフリラーゼを発現させ、免疫グロブリンで免疫沈降法により膜輸送に関与するスーパー複合体を分離精製する。精製された複合体のコンポーネントを質量分析により同定し、個別のタンパク質の機能を解析したい。また、膜の輸送体であることが予測されるβバレル型タンパク質をゲノムから同定し、局在・機能を明らかにする。膜タンパク質の機能解析は、コムギ胚芽無細胞タンパク質合成系を用いて、リポソーム上にβバレル型タンパク質を発現させ、通過する基質などを同定する。また、嫌気的原生生物群フォルニカータ生物3種および自由生活性EntamoebaのESTデータを、バイオインフォマティクス・分子系統解析によりさまざまな生物種のデータと比較解析し、嫌気的エネルギー代謝経路、オルガネラへのタンパク質移送機構などの分子進化に関する知見を得る予定である。CLO-NY0171に関しゲノム解析を行う。Dysnectes brevis および CLO-NY0171 のMRO関連タンパク質の局在について、遺伝子導入が可能な Trichomonas vaginalis, Giardia intestinalis の系を用いて検討する。また、バクテリア混在下で両生物種のMROを精製するための方法論的検討を行う。新規発見されたEntamoebaのドラフトゲノム情報を補完するためのゲノム構造マッピングを行い、総合的な赤痢アメーバ・ゲノム情報そして基盤構築を目指す。内在する細菌とウィルス等の存在を網羅的に検出し、共生関係についてその意義を代謝を中心に検討する。

  • Research Products

    (33 results)

All 2013 2012 Other

All Journal Article (25 results) (of which Peer Reviewed: 25 results) Presentation (6 results) Remarks (2 results)

  • [Journal Article] Cysteine protease-binding protein family 6 mediates the trafficking of amylases to phagosomes in the enteric protozoan Entamoeba histolytica2013

    • Author(s)
      Furukawa, A., Nakada-Tsukui, K., and Nozaki, T
    • Journal Title

      Inf. Immun

      Volume: 81 Pages: 1820-1829

    • DOI

      10.1128/IAI.00915-12

    • Peer Reviewed
  • [Journal Article] Iron sulfur clusters, their biosythesis and biological functions in protozoan parasites2013

    • Author(s)
      Ali, V. and Nozaki, T
    • Journal Title

      Adv. Parasiol

      Volume: in press Pages: in press

    • Peer Reviewed
  • [Journal Article] Novel TPR-containing subunit of TOM complex functions as cytosolic receptor for Entamoeba mitosomal transport2013

    • Author(s)
      Makiuchi T, Mi-Ichi F, Nakada-Tsukui K, *Nozaki T
    • Journal Title

      Sci Rep

      Volume: 3 Pages: 1129

    • DOI

      10.1038/srep01129

    • Peer Reviewed
  • [Journal Article] Canine distemper virus with the intact C protein has the potential to replicate in human epithelial cells by using human nectin4 as a receptor2012

    • Author(s)
      Otsuki N, Sekizuka T, Seki F, Sakai K, Kubota T, Nakatsu Y, Chen S, Fukuhara H, Maenaka K, Yamaguchi R, Kuroda M, Takeda M
    • Journal Title

      Virology

      Volume: 435(2) Pages: 485-92

    • DOI

      10.1016/j.virol.2012.10.033

    • Peer Reviewed
  • [Journal Article] Genetic analysis of non-hydrogen sulfide-producing Salmonella enterica serovar Typhimurium and Infantis isolates in Japan2012

    • Author(s)
      Sakano C, Kuroda M, Sekizuka T, Ishioka T, Morita Y, Ryo A, Tsukagoshi H, Kawai Y, Inoue N, Takada H, Ogaswara Y, Nishina A, Shimoda MA, Kozawa K, Oishi K, Kimura H
    • Journal Title

      J Clin Microbiol

      Volume: vol. 51 no. 1 Pages: 328-330

    • DOI

      10.1128/JCM.02225-12

    • Peer Reviewed
  • [Journal Article] Epidemic myalgia in adults associated with human parechovirus type 3 infection, yamagata, Japan, 20082012

    • Author(s)
      Mizuta K, Kuroda M, Kurimura M, Yahata Y, Sekizuka T, Aoki Y, Ikeda T, Abiko C, Noda M, Kimura H, Mizutani T, Kato T, Kawanami T, Ahiko T
    • Journal Title

      Emerg Infect Dis

      Volume: 18 Pages: 1787-1793

    • DOI

      10.3201/eid1811.111570

    • Peer Reviewed
  • [Journal Article] Pathogenic characterization of a cervical lymph node derived from a patient with Kawasaki disease2012

    • Author(s)
      Katano H, Sato S, Sekizuka T, Kinumaki A, Fukumoto H, Sato Y, Hasegawa H, Morikawa S, Saijo M, Mizutani T, *Kuroda M
    • Journal Title

      Int J Clin Exp Pathol

      Volume: 5 Pages: 814-823

    • Peer Reviewed
  • [Journal Article] Biochemical and functional characterization of novel NADH kinase in the enteric protozoan parasite Entamoeba histolytica2012

    • Author(s)
      Jeelani G, Husain A, Sato D, Soga T, Suematsu M, *Nozaki T
    • Journal Title

      Biochimie

      Volume: 2013 Feb Pages: 309-19

    • DOI

      10.1016/j.biochi.2012.09.034

    • Peer Reviewed
  • [Journal Article] Dramatic Increase in Glycerol Biosynthesis upon Oxidative Stress in the Anaerobic Protozoan Parasite Entamoeba histolytica2012

    • Author(s)
      Husain A, Sato D, Jeelani G, Soga T, *Nozaki T
    • Journal Title

      PLoS Negl Trop Dis

      Volume: 6 Pages: e1831

    • DOI

      10.1371/journal.pntd.0001831

    • Peer Reviewed
  • [Journal Article] Guidelines for the use and interpretation of assays for monitoring autophagy2012

    • Author(s)
      Klionsky DJ et al
    • Journal Title

      Autophagy

      Volume: 8 Pages: 445-544

    • DOI

      PMID:22966490

    • Peer Reviewed
  • [Journal Article] RY-Coding and Non-Homogeneous Models Can Ameliorate the Maximum-Likelihood Inferences From Nucleotide Sequence Data with Parallel Compositional Heterogeneity2012

    • Author(s)
      Ishikawa SA, Inagaki Y, *Hashimoto T
    • Journal Title

      Evol Bioinform Online

      Volume: 8 Pages: 357-371

    • DOI

      10.4137/EBO.S9017

    • Peer Reviewed
  • [Journal Article] Metabolic profiling of the protozoan parasite Entamoeba invadens revealed activation of unpredicted pathway during encystation2012

    • Author(s)
      Jeelani G, Sato D, Husain A, Escueta-de Cadiz A, Sugimoto M, Soga T, Suematsu M, *Nozaki T
    • Journal Title

      PLoS One

      Volume: 7 Pages: e37740

    • DOI

      10.1371/journal.pone. 0037740

    • Peer Reviewed
  • [Journal Article] Separate origins of group I introns in two mitochondrial genes of the katablepharid Leucocryptos marina2012

    • Author(s)
      Nishimura Y, Kamikawa R, Hashimoto T, Inagaki Y
    • Journal Title

      PLoS One

      Volume: 7 Pages: e37307

    • DOI

      10.1371/journal.pone.0037307

    • Peer Reviewed
  • [Journal Article] Corynebacterium ulcerans 0102 carries the gene encoding diphtheria toxin on a prophage different from the C. diphtheriae NCTC 13129 prophage2012

    • Author(s)
      Sekizuka T, Yamamoto A, Komiya T, Kenri T, Takeuchi F, Shibayama K, Takahashi M, Kuroda M, Iwaki M
    • Journal Title

      BMC Microbiol

      Volume: 12 Pages: 72

    • DOI

      10.1186/1471-2180-12-72

    • Peer Reviewed
  • [Journal Article] A novel class of cysteine protease receptors that mediate lysosomal transport2012

    • Author(s)
      Nakada-Tsukui K, Tsuboi K, Furukawa A, Yamada Y, *Nozaki T
    • Journal Title

      Cell Microbiol

      Volume: 14 Pages: 1299-1317

    • DOI

      10.1111/j.1462-5822. 2012.01800.x

    • Peer Reviewed
  • [Journal Article] The Plasmodium apicoplast genome: conserved structure and close relationship of P. ovale to rodent malaria parasites2012

    • Author(s)
      Arisue N, Hashimoto T, Mitsui H, Palacpac NM, Kaneko A, Kawai S, Hasegawa M, Tanabe K, Horii T
    • Journal Title

      Mol Biol Evol

      Volume: 29 Pages: 2095-2099

    • DOI

      10.1093/molbev/mss082

    • Peer Reviewed
  • [Journal Article] Novel protein-protein interactions between Entamoeba histolyticad-phosphoglycerate dehydrogenase and phosphoserine aminotransferase2012

    • Author(s)
      Mishra V, Kumar A, Ali V, Nozaki T, Zhang KY, Bhakuni V
    • Journal Title

      Biochimie

      Volume: 94 Pages: 1676-1686

    • DOI

      10.1016/j.biochi.2012. 02.028

    • Peer Reviewed
  • [Journal Article] Novel transmembrane receptor involved in phagosome transport of lysozymes and beta-hexosaminidase in the enteric protozoan Entamoeba histolytica2012

    • Author(s)
      Furukawa A, Nakada-Tsukui K, *Nozaki T
    • Journal Title

      PLoS Pathog

      Volume: 8 Pages: e1002539

    • DOI

      10.1371/journal.ppat.1002539

    • Peer Reviewed
  • [Journal Article] Multisite performance evaluation of an enzyme-linked immunosorbent assay for detection of Giardia, Cryptosporidium, and Entamoeba histolytica antigens in human stool2012

    • Author(s)
      Christy NC, Hencke JD, Escueta-De Cadiz A, Nazib F, von Thien H, Yagita K, Ligaba S, Haque R, Nozaki T, Tannich E, Herbein JF, Petri WA Jr
    • Journal Title

      J Clin Microbiol

      Volume: 50 Pages: 1762-1763

    • DOI

      10. 1128/JCM.06483-11

    • Peer Reviewed
  • [Journal Article] Multigene phylogenies of diverse Carpediemonas-like organisms identify the closest relatives of 'amitochondriate' diplomonads and retortamonads2012

    • Author(s)
      Takishita K, Kolisko M, Komatsuzaki H, Yabuki A, Inagaki Y, Cepicka I, Smejkalova P, Silberman JD, Hashimoto T, Roger AJ, Simpson AG
    • Journal Title

      Protist

      Volume: 163 Pages: 344-355

    • DOI

      10.1016/j.protis.2011.12.007

    • Peer Reviewed
  • [Journal Article] Detection of a possible bioterrorism agent, Francisella sp., in a clinical specimen by use of next-generation direct DNA sequencing2012

    • Author(s)
      Kuroda M, Sekizuka T, Shinya F, Takeuchi F, Kanno T, Sata T, Asano S.
    • Journal Title

      J Clin Microbiol

      Volume: 50 Pages: 1810-1812

    • DOI

      10.1128/JCM.06715-11

    • Peer Reviewed
  • [Journal Article] Identification of Kudoa septempunctata as the causative agent of novel food poisoning outbreaks in Japan by consumption of Paralichthys olivaceus in raw fish2012

    • Author(s)
      Kawai T, Sekizuka T, Yahata Y, Kuroda M, Kumeda Y, Iijima Y, Kamata Y, Sugita-Konishi Y, Ohnishi T
    • Journal Title

      Clin Infect Dis

      Volume: 54 Pages: 1046-1052

    • DOI

      10.1093/cid/cir1040

    • Peer Reviewed
  • [Journal Article] Transcriptional and functional analysis of trifluoromethionine resistance in Entamoeba histolytica2012

    • Author(s)
      Penuliar GM, Furukawa A, Nakada-Tsukui K, Husain A, Sato D, *Nozaki T.
    • Journal Title

      J Antimicrob Chemother

      Volume: 67, Pages: 375-386

    • DOI

      10.1093/jac/dkr484

    • Peer Reviewed
  • [Journal Article] Glu-108 is essential for subunit assembly and dimer stability of D-phosphoglycerate dehydrogenase from Entamoeba histolytica2012

    • Author(s)
      Mishra V, Kumar A, Ali V, Nozaki T, Zhang KY, Bhakuni V
    • Journal Title

      Mol Biochem Parasitol

      Volume: 181 Pages: 117-124

    • DOI

      10.1016/j.molbiopara.2011. 10.008

    • Peer Reviewed
  • [Journal Article] Role of conserved active site tryptophan-101 in functional activity and stability of phosphoserine aminotransferase from an enteric human parasite2012

    • Author(s)
      Mishra V, Kumar A, Ali V, Nozaki T, Zhang KY, Bhakuni V
    • Journal Title

      Amino Acids

      Volume: 43 Pages: 483-491

    • DOI

      10.1007/s00726-011-1105-x

    • Peer Reviewed
  • [Presentation] A novel beta barrel transporter in the mitosome of Entamoeba histolytica2013

    • Author(s)
      Nozaki, T
    • Organizer
      XVII Seminar on Amebiasis 2013
    • Place of Presentation
      Merida, Mexico
    • Year and Date
      2013-03-01 – 2013-03-05
  • [Presentation] 寄生生物ミトコンドリアの特性~嫌気環境下における多様化2012

    • Author(s)
      野崎智義
    • Organizer
      J-mit, “Mitochondrial Diversity: shall we find out her multiple faces” (日本ミトコンドリア学会)
    • Place of Presentation
      Tsukuba, Ibaraki
    • Year and Date
      2012-12-19 – 2012-12-21
  • [Presentation] Evolution of the mitochondria under anaerobic conditions: Function and import machinery of the highly divergent mitochondrion-related organelle in Entamoeba histolytica2012

    • Author(s)
      Nozaki, T
    • Organizer
      Joint International Tropical Medicine Meeting
    • Place of Presentation
      Bangkok, Thailand
    • Year and Date
      2012-12-12 – 2012-12-14
  • [Presentation] Evolution of the mitochondria under anaerobic conditions: Function and import machinery of the highly divergent mitochondrion-related organelle in the parasitic protozoan Entamoeba histolytica2012

    • Author(s)
      Nozaki, T
    • Organizer
      The 11th Awaji International Forum on Infection and Immunity
    • Place of Presentation
      Awaji, Japan
    • Year and Date
      2012-09-11 – 2012-09-14
  • [Presentation] Mitosomal transport system in Entamoeba histolytica2012

    • Author(s)
      Nozaki, T
    • Organizer
      Protist 2012, International Society of Evolutionary Protistology Meeting
    • Place of Presentation
      Oslo, Norway
    • Year and Date
      2012-07-29 – 2012-08-03
  • [Presentation] Evolution of function and import machinery of the mitochondria under anaerobic conditions: Highly divergent mitochondrion-related organelles in the parasitic protozoan Entamoeba histolytica2012

    • Author(s)
      Nozaki, T
    • Organizer
      Mito 21012
    • Place of Presentation
      Heraklion, Greece
    • Year and Date
      2012-05-09 – 2012-05-13
  • [Remarks] マトリョーシカ型進化原理

    • URL

      http://www.matryoshka-evolution.jp/

  • [Remarks] 国立感染症研究所寄生動物部

    • URL

      http://www.nih.go.jp/niid/ja/from-para.html

URL: 

Published: 2018-02-02  

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