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  1. Book ; Online ; E-Book: Anoxygenic Phototrophic Bacteria

    Shimada, Keizo / Takaichi, Shinichi

    2024  

    Subject code 579.38
    Language English
    Size 1 online resource (304 pages)
    Edition 1st ed.
    Publisher Elsevier Science & Technology
    Publishing place San Diego
    Document type Book ; Online ; E-Book
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    ISBN 9780443159831 ; 0443159831
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article ; Online: Carotenogenesis in cyanobacteria: CruA/CruP-type and CrtL-type lycopene cyclases.

    Sugiyama, Kenjiro / Takaichi, Shinichi

    The Journal of general and applied microbiology

    2020  Volume 66, Issue 2, Page(s) 53–58

    Abstract: Cyanobacteria are oxygenic photoautotrophic prokaryotes containing chlorophylls and carotenoids, and the latter play important roles in light-harvesting, protection of excess light, assembly of pigment-protein complexes, and stabilization of lipid ... ...

    Abstract Cyanobacteria are oxygenic photoautotrophic prokaryotes containing chlorophylls and carotenoids, and the latter play important roles in light-harvesting, protection of excess light, assembly of pigment-protein complexes, and stabilization of lipid membranes. Cyanobacteria produce many kinds of carotenoids, such as β-carotene, zeaxanthin, echinenone, and myxol glycosides, which have a cyclic structure at one or both end(s). Cyclization of lycopene is a branch point in carotenoid biosynthesis to β-carotene and γ-carotene. Two types of lycopene cyclases, CruA/CruP-type and CrtL-type, are functionally confirmed in only five species, while homologous genes are found in the genomes of most cyanobacteria. This review summarizes the carotenogenesis pathways and the functional enzymes along with genes, focusing particularly on the cyclization of lycopene by distinct types of lycopene cyclases in cyanobacteria.
    MeSH term(s) Bacterial Proteins/genetics ; Biosynthetic Pathways ; Cyanobacteria/enzymology ; Cyanobacteria/genetics ; Intramolecular Lyases/genetics ; Lycopene/metabolism ; Phylogeny
    Chemical Substances Bacterial Proteins ; Intramolecular Lyases (EC 5.5.-) ; lycopene cyclase-isomerase (EC 5.5.-) ; Lycopene (SB0N2N0WV6)
    Language English
    Publishing date 2020-03-28
    Publishing country Japan
    Document type Journal Article ; Review
    ZDB-ID 218355-9
    ISSN 1349-8037 ; 0022-1260
    ISSN (online) 1349-8037
    ISSN 0022-1260
    DOI 10.2323/jgam.2020.01.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: General methods for identification of carotenoids.

    Takaichi, Shinichi

    Biotechnology letters

    2014  Volume 36, Issue 6, Page(s) 1127–1128

    Abstract: General methods for identification of usual carotenoids including C18-HPLC retention time and spectroscopic methods, such as absorption spectra, mass spectra, NMR spectra, are briefly summarized. ...

    Abstract General methods for identification of usual carotenoids including C18-HPLC retention time and spectroscopic methods, such as absorption spectra, mass spectra, NMR spectra, are briefly summarized.
    MeSH term(s) Carotenoids/analysis ; Chromatography, High Pressure Liquid/methods ; Spectrum Analysis/methods
    Chemical Substances Carotenoids (36-88-4)
    Language English
    Publishing date 2014-06
    Publishing country Netherlands
    Document type Letter
    ZDB-ID 423853-9
    ISSN 1573-6776 ; 0141-5492
    ISSN (online) 1573-6776
    ISSN 0141-5492
    DOI 10.1007/s10529-014-1479-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: An ependymin-related blue carotenoprotein decorates marine blue sponge.

    Kawasaki, Shinji / Kaneko, Takayuki / Asano, Tomomi / Maoka, Takashi / Takaichi, Shinichi / Shomura, Yasuhito

    The Journal of biological chemistry

    2023  Volume 299, Issue 9, Page(s) 105110

    Abstract: Marine animals display diverse vibrant colors, but the mechanisms underlying their specific coloration remain to be clarified. Blue coloration is known to be achieved through a bathochromic shift of the orange carotenoid astaxanthin (AXT) by the ... ...

    Abstract Marine animals display diverse vibrant colors, but the mechanisms underlying their specific coloration remain to be clarified. Blue coloration is known to be achieved through a bathochromic shift of the orange carotenoid astaxanthin (AXT) by the crustacean protein crustacyanin, but other examples have not yet been well investigated. Here, we identified an ependymin (EPD)-related water-soluble blue carotenoprotein responsible for the specific coloration of the marine blue sponge Haliclona sp. EPD was originally identified in the fish brain as a protein involved in memory consolidation and neuronal regeneration. The purified blue protein, designated as EPD-related blue carotenoprotein-1, was identified as a secreted glycoprotein. We show that it consists of a heterodimer that binds orange AXT and mytiloxanthin and exhibits a bathochromic shift. Our crystal structure analysis of the natively purified EPD-related blue carotenoprotein-1 revealed that these two carotenoids are specifically bound to the heterodimer interface, where the polyene chains are aligned in parallel to each other like in β-crustacyanin, although the two proteins are evolutionary and structurally unrelated. Furthermore, using reconstitution assays, we found that incomplete bathochromic shifts occurred when the protein bound to only AXT or mytiloxanthin. Taken together, we identified an EPD in a basal metazoan as a blue protein that decorates the sponge body by binding specific structurally unrelated carotenoids.
    Language English
    Publishing date 2023-07-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2997-x
    ISSN 1083-351X ; 0021-9258
    ISSN (online) 1083-351X
    ISSN 0021-9258
    DOI 10.1016/j.jbc.2023.105110
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Excitation relaxation dynamics of carotenoids constituting the diadinoxanthin cycle.

    Kagatani, Kohei / Nagao, Ryo / Shen, Jian-Ren / Yamano, Yumiko / Takaichi, Shinichi / Akimoto, Seiji

    Photosynthesis research

    2022  Volume 154, Issue 1, Page(s) 13–19

    Abstract: Carotenoids (Cars) exhibit two functions in photosynthesis, light-harvesting and photoprotective functions, which are performed through the excited states of Cars. Therefore, increasing our knowledge on excitation relaxation dynamics of Cars is important ...

    Abstract Carotenoids (Cars) exhibit two functions in photosynthesis, light-harvesting and photoprotective functions, which are performed through the excited states of Cars. Therefore, increasing our knowledge on excitation relaxation dynamics of Cars is important for understanding of the functions of Cars. In light-harvesting complexes, there exist Cars functioning by converting the π-conjugation number in response to light conditions. It is well known that some microalgae have a mechanism controlling the conjugation number of Cars, called as the diadinoxanthin cycle; diadinoxanthin (10 conjugations) is accumulated under low light, whereas diatoxanthin (11 conjugations) appears under high light. However, the excitation relaxation dynamics of these two Cars have not been clarified. In the present study, we investigated excitation relaxation dynamics of diadinoxanthin and diatoxanthin in relation to their functions, by the ultrafast fluorescence spectroscopy. After an excitation to the S
    MeSH term(s) Acetone ; Carotenoids/chemistry ; Chlorophyll/chemistry ; Chlorophyll A ; Ethanol ; Ether ; Light-Harvesting Protein Complexes/chemistry ; Xanthophylls
    Chemical Substances Light-Harvesting Protein Complexes ; Xanthophylls ; Ether (0F5N573A2Y) ; Acetone (1364PS73AF) ; Chlorophyll (1406-65-1) ; diadinoxanthin (18457-54-0) ; Carotenoids (36-88-4) ; Ethanol (3K9958V90M) ; diatoxanthin (3VOI529I46) ; Chlorophyll A (YF5Q9EJC8Y)
    Language English
    Publishing date 2022-08-11
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1475688-2
    ISSN 1573-5079 ; 0166-8595
    ISSN (online) 1573-5079
    ISSN 0166-8595
    DOI 10.1007/s11120-022-00944-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Elevated Levels of Specific Carotenoids During Acclimation to Strong Light Protect the Repair of Photosystem II in

    Izuhara, Taichi / Kaihatsu, Ikumi / Jimbo, Haruhiko / Takaichi, Shinichi / Nishiyama, Yoshitaka

    Frontiers in plant science

    2020  Volume 11, Page(s) 1030

    Abstract: The tolerance of photosynthesis to strong light increases in photosynthetic organisms during acclimation to strong light. We investigated the role of carotenoids in the protection of photosystem II (PSII) from photoinhibition after acclimation to strong ... ...

    Abstract The tolerance of photosynthesis to strong light increases in photosynthetic organisms during acclimation to strong light. We investigated the role of carotenoids in the protection of photosystem II (PSII) from photoinhibition after acclimation to strong light in the cyanobacterium
    Language English
    Publishing date 2020-07-07
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2711035-7
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2020.01030
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Carotenoids in algae: distributions, biosyntheses and functions.

    Takaichi, Shinichi

    Marine drugs

    2011  Volume 9, Issue 6, Page(s) 1101–1118

    Abstract: For photosynthesis, phototrophic organisms necessarily synthesize not only chlorophylls but also carotenoids. Many kinds of carotenoids are found in algae and, recently, taxonomic studies of algae have been developed. In this review, the relationship ... ...

    Abstract For photosynthesis, phototrophic organisms necessarily synthesize not only chlorophylls but also carotenoids. Many kinds of carotenoids are found in algae and, recently, taxonomic studies of algae have been developed. In this review, the relationship between the distribution of carotenoids and the phylogeny of oxygenic phototrophs in sea and fresh water, including cyanobacteria, red algae, brown algae and green algae, is summarized. These phototrophs contain division- or class-specific carotenoids, such as fucoxanthin, peridinin and siphonaxanthin. The distribution of α-carotene and its derivatives, such as lutein, loroxanthin and siphonaxanthin, are limited to divisions of Rhodophyta (macrophytic type), Cryptophyta, Euglenophyta, Chlorarachniophyta and Chlorophyta. In addition, carotenogenesis pathways are discussed based on the chemical structures of carotenoids and known characteristics of carotenogenesis enzymes in other organisms; genes and enzymes for carotenogenesis in algae are not yet known. Most carotenoids bind to membrane-bound pigment-protein complexes, such as reaction center, light-harvesting and cytochrome b(6)f complexes. Water-soluble peridinin-chlorophyll a-protein (PCP) and orange carotenoid protein (OCP) are also established. Some functions of carotenoids in photosynthesis are also briefly summarized.
    MeSH term(s) Animals ; Carotenoids/biosynthesis ; Carotenoids/genetics ; Carotenoids/metabolism ; Chlorophyta/genetics ; Chlorophyta/metabolism ; Cyanobacteria/genetics ; Cyanobacteria/metabolism ; Phaeophyceae/genetics ; Phaeophyceae/metabolism ; Phototrophic Processes/genetics ; Phylogeny ; Rhodophyta/genetics ; Rhodophyta/metabolism
    Chemical Substances Carotenoids (36-88-4)
    Language English
    Publishing date 2011-06-15
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2175190-0
    ISSN 1660-3397 ; 1660-3397
    ISSN (online) 1660-3397
    ISSN 1660-3397
    DOI 10.3390/md9061101
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: General methods for identification of carotenoids

    Takaichi, Shinichi

    Biotechnology letters. 2014 June, v. 36, no. 6

    2014  

    Abstract: General methods for identification of usual carotenoids including C₁₈-HPLC retention time and spectroscopic methods, such as absorption spectra, mass spectra, NMR spectra, are briefly summarized. ...

    Abstract General methods for identification of usual carotenoids including C₁₈-HPLC retention time and spectroscopic methods, such as absorption spectra, mass spectra, NMR spectra, are briefly summarized.
    Keywords absorption ; carotenoids ; nuclear magnetic resonance spectroscopy
    Language English
    Dates of publication 2014-06
    Size p. 1127-1128.
    Publishing place Springer-Verlag
    Document type Article
    ZDB-ID 423853-9
    ISSN 1573-6776 ; 0141-5492
    ISSN (online) 1573-6776
    ISSN 0141-5492
    DOI 10.1007/s10529-014-1479-4
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Major Carotenoids of

    Asaka, Ryo / Ohshima, Kazuki / Kawasaki, Shinji / Maoka, Takashi / Tode, Chisato / Wang-Otomo, Zheng-Yu / Takaichi, Shinichi

    Journal of natural products

    2022  Volume 85, Issue 10, Page(s) 2266–2273

    Abstract: Meiothermus ... ...

    Abstract Meiothermus ruber
    MeSH term(s) Esters/chemistry ; Glucosides/metabolism ; Carotenoids/chemistry ; Fatty Acids/chemistry
    Chemical Substances deinoxanthin ; Esters ; Glucosides ; Carotenoids (36-88-4) ; Fatty Acids
    Language English
    Publishing date 2022-09-21
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 304325-3
    ISSN 1520-6025 ; 0163-3864
    ISSN (online) 1520-6025
    ISSN 0163-3864
    DOI 10.1021/acs.jnatprod.2c00271
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Lack of plastid-encoded Ycf10, a homolog of the nuclear-encoded DLDG1 and the cyanobacterial PxcA, enhances the induction of non-photochemical quenching in tobacco.

    Trinh, Mai Duy Luu / Hashimoto, Akira / Kono, Masaru / Takaichi, Shinichi / Nakahira, Yoichi / Masuda, Shinji

    Plant direct

    2021  Volume 5, Issue 12, Page(s) e368

    Abstract: pH homeostasis in the chloroplast is crucial for the control of photosynthesis and other metabolic processes in plants. Recently, nuclear-encoded Day-Length-dependent Delayed Greening1 (DLDG1) and Fluctuating-Light Acclimation Protein1 (FLAP1) that are ... ...

    Abstract pH homeostasis in the chloroplast is crucial for the control of photosynthesis and other metabolic processes in plants. Recently, nuclear-encoded Day-Length-dependent Delayed Greening1 (DLDG1) and Fluctuating-Light Acclimation Protein1 (FLAP1) that are required for the light-inducible optimization of plastidial pH in
    Language English
    Publishing date 2021-12-14
    Publishing country England
    Document type Journal Article
    ISSN 2475-4455
    ISSN (online) 2475-4455
    DOI 10.1002/pld3.368
    Database MEDical Literature Analysis and Retrieval System OnLINE

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