KINDAI UNIVERSITY


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SAGA Yoshitaka

Profile

FacultyDepartment of Science / Graduate School of Science and Engineering Research
PositionProfessor
Degree
Commentator Guidehttps://www.kindai.ac.jp/meikan/351-saga-yoshitaka.html
URL
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Last Updated :2020/04/04

Education and Career

Education

  •   1990 04  - 1994 03 , The University of Tokyo, The Faculty of Engineering
  •   1994 04  - 1996 03 , The University of Tokyo, The Graduate School of Engineering
  •   1996 04  - 1999 03 , The University of Tokyo, The Graduate School of Engineering

Academic & Professional Experience

  •   2017 04 ,  - 現在, Professor, Department of Chemistry, Kindai University
  •   2010 04 ,  - 2017 03 , Faculty of Science and Engineering, Department of Science, Kindai University
  •   2005 04 ,  - 2010 03 , Faculty of Science and Engineering, Department of Science, Kindai University
  •   1999 04 ,  - 2002 03 , Ritsumeikan University

Research Activities

Research Areas

  • Life sciences, Functional biochemistry
  • Nanotechnology/Materials, Functional solid-state chemistry
  • Nanotechnology/Materials, Biochemistry

Research Interests

  • Artificial photosynthesis, Carotenoid, Photosynthesis, Chlorophyll

Published Papers

  • Selective oxidation of B800 bacteriochlorophyll a in photosynthetic light-harvesting protein LH2, Yoshitaka Saga, Kiyoshiro Kawano, Yuji Otsuka, Michie Imanishi, Yukihiro Kimura, Sayaka Matsui, Hitoshi Asakawa, Scientific Reports, Scientific Reports, 9(1), Dec. 2019 , Refereed
  • In situ Conversion of Chlorophyll b Reconstituted into Photosynthetic Protein LH2, Yoshitaka Saga, Madoka Yamashita, Shiori Nakagawa, Chemistry Letters, Chemistry Letters, 48, 1270 - 1273, Oct. 2019 , Refereed
  • A Dual Role for Ca2+ in Expanding the Spectral Diversity and Stability of Light-Harvesting 1 Reaction Center Photocomplexes of Purple Phototrophic Bacteria, Michie Imanishi, Mizuki Takenouchi, Shinichi Takaichi, Shiori Nakagawa, Yoshitaka Saga, Shinji Takenaka, Michael T. Madigan, Jörg Overmann, Zheng-Yu Wang-Otomo, Yukihiro Kimura, Biochemistry, Biochemistry, 58(25), 2844, Jun. 2019 , Refereed
  • Reconstitution of Chlorophyll d into the Bacterial Photosynthetic Light-harvesting Protein LH2, Yoshitaka Saga, Madoka Yamashita, Michie Imanishi, Yukihiro Kimura, Chemistry Letters, Chemistry Letters, 47, 1071 - 1074, Aug. 2018 , Refereed
  • Selective Removal of B800 Bacteriochlorophyll a from Light-Harvesting Complex 2 of the Purple Photosynthetic Bacterium Phaeospirillum molischianum, Yoshitaka Saga, Keiya Hirota, Sayaka Matsui, Hitoshi Asakawa, Hiroshi Ishikita, Keisuke Saito, Biochemistry, Biochemistry, 57, 3075 - 3083, May 2018 , Refereed
  • Characterization of 3-Acetyl Chlorophyll a and 3-Acetyl Protochlorophyll a Accommodated in the B800 Binding Sites of Photosynthetic Light-Harvesting Complex 2 in the Purple Photosynthetic Bacterium Rhodoblastus acidophilus, Yoshitaka Saga, Kanji Miyagi, Photochemistry and Photobiology, Photochemistry and Photobiology, 94, 698 - 704, Apr. 2018 , Refereed
  • Insertion of Chlorophyll a Derivatives into the Binding Sites of B800 Bacteriochlorophyll a in Light-Harvesting Complex 2 of the Purple Photosynthetic Bacterium Rhodoblastus acidophilus, Saga Yoshitaka, Amari Kenta, Miyagi Kanji, JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 353, 591 - 596, Feb. 2018 , Refereed
  • Amphiphilic Zinc Bacteriochlorophyll a Derivatives that Function as Artificial Energy Acceptors in Photosynthetic Antenna Complexes Chlorosomes of the Green Sulfur Photosynthetic Bacterium Chlorobaculum limnaeum, Saga Yoshitaka, Takahashi Naoya, Miyatake Tomohiro, Tamiaki Hitoshi, JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 353, 612 - 617, Feb. 2018 , Refereed
  • Biosynthesis of unnatural glycolipids possessing diyne moiety in the acyl chain in the green sulfur photosynthetic bacterium Chlorobaculum tepidum grown by supplementation of 10,12-heptadecadiynic acid, Yoshitaka Saga, Nozomi Yoshida, Shota Yamada, Tadashi Mizoguchi, Hitoshi Tamiaki, Biochemistry and Biophysics Reports, Biochemistry and Biophysics Reports, 9, 42 - 46, Mar. 2017 , Refereed
  • Introduction of perfluoroalkyl chain into the esterifying moiety of bacteriochlorophyll c in the green sulfur photosynthetic bacterium Chlorobaculum tepidum by pigment biosynthesis, Saga Yoshitaka, Yamashita Hayato, Hirota Keiya, BIOORGANIC & MEDICINAL CHEMISTRY, BIOORGANIC & MEDICINAL CHEMISTRY, 24(18), 4165 - 4170, Sep. 15 2016 , Refereed
  • Determination of the Molar Extinction Coefficients of the B800 and B850 Absorption Bands in Light-harvesting Complexes 2 Derived from Three Purple Photosynthetic Bacteria Rhodoblastus acidophilus, Rhodobacter sphaeroides, and Phaeospirillum molischianum b, Saga Yoshitaka, Hirota Keiya, ANALYTICAL SCIENCES, ANALYTICAL SCIENCES, 32(7), 801 - 804, Jul. 2016 , Refereed
  • Modification of the esterifying farnesyl chain in light-harvesting bacteriochlorophylls in green sulfur photosynthetic bacteria by supplementation of 9-decyn-1-ol, 9-decen-1-ol, and decan-1-ol, Saga Yoshitaka, Hayashi Keisuke, Hirota Keiya, Harada Jiro, Tamiaki Hitoshi, JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 313, 44 - 51, Dec. 01 2015 , Refereed
  • In Vitro Enzymatic Activities of Bacteriochlorophyll a Synthase Derived from the Green Sulfur Photosynthetic Bacterium Chlorobaculum tepidum, Saga Yoshitaka, Hirota Keiya, Harada Jiro, Tamiaki Hitoshi, BIOCHEMISTRY, BIOCHEMISTRY, 54(32), 4998 - 5005, Aug. 18 2015 , Refereed
  • Facile transformation of the five-membered exocyclic E-ring in 13(2)-demethoxycarbonyl chlorophyll derivatives by molecular oxygen with titanium oxide in the dark, Takahashi Naoya, Hirota Keiya, Saga Yoshitaka, JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 19(4), 631 - 637, Apr. 2015 , Refereed
  • Production of bacteriopurpurin-18 phytyl ester from bacteriopheophytin a via allomerization by contact with titanium oxides in the presence of molecular oxygen, Saga Yoshitaka, Ishitani Atsushi, Takahashi Naoya, Kawamura Kenji, BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, 25(3), 639 - 641, Feb. 01 2015 , Refereed
  • In vitro self-assembly of bacteriochlorophyll c derivatives monoesterified with alpha,omega-diols isolated from the green sulfur photosynthetic bacterium Chlorobaculum tepidum, Nishimori Risato, Tamiaki Hitoshi, Kashimura Shigenori, Saga Yoshitaka, SUPRAMOLECULAR CHEMISTRY, SUPRAMOLECULAR CHEMISTRY, 27(1-2), 28 - 36, Feb. 01 2015 , Refereed
  • Pheophytinization kinetics of chlorophyll c under weakly acidic conditions: effects of acrylic acid residue at the 17-position., Sadaoka K, Shoji S, Hirota K, Tsukatani Y, Yoshitomi T, Tamiaki H, Kashimura S, Saga Y, Bioorganic & medicinal chemistry, Bioorganic & medicinal chemistry, 21(22), 6915 - 6919, Nov. 15 2013 , Refereed
  • Demetalation kinetics of the zinc chlorophyll derivative possessing two formyl groups: effects of formyl groups conjugated to the chlorin macrocycle on physicochemical properties of photosynthetic pigments, Sadaoka Kana, Oba Toru, Tamiaki Hitoshi, Kashimura Shigenori, Saga Yoshitaka, JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 17(11), 1120 - 1128, Nov. 2013 , Refereed
  • Effects of the 13-Keto Group in the E-Ring of Zinc Chlorophyll Derivatives on Demetalation Kinetics under Acidic Conditions, Saga Yoshitaka, Maruko Akane, Sadaoka Kana, Takahashi Naoya, CHEMISTRY LETTERS, CHEMISTRY LETTERS, 42(6), 672 - 674, Jun. 05 2013 , Refereed
  • Synthesis and self-assembly of amphiphilic zinc chlorophyll derivatives possessing a crown ether at the 17-propionate residue, Takahashi Naoya, Tamiaki Hitoshi, Saga Yoshitaka, TETRAHEDRON, TETRAHEDRON, 69(18), 3638 - 3645, May 06 2013 , Refereed
  • Systematic analysis of the demetalation kinetics of zinc chlorophyll derivatives possessing different substituents at the 3-position: effects of the electron-withdrawing and electron-donating strength of peripheral substituents., Saga Y, Kobashiri Y, Sadaoka K, Inorganic chemistry, Inorganic chemistry, 52(1), 204 - 210, Jan. 07 2013 , Refereed
  • Structure-dependent demetalation kinetics of chlorophyll a analogs under acidic conditions., Saga Y, Hirai Y, Sadaoka K, Isaji M, Tamiaki H, Photochemistry and photobiology, Photochemistry and photobiology, 89(1), 68 - 73, Jan. 2013 , Refereed
  • Self-Assembly of Zinc Bacteriochlorophyll d Derivative Possessing a Triethoxysilyl Group at the 17-Propionate Residue, N. Takahashi, S. Shoji, H. Tamiaki, Y. Saga, Bulletin of The Chemical Society of Japan, Bulletin of The Chemical Society of Japan, 85(9), 989 - 994, Sep. 15 2012 , Refereed
  • Demetalation of chlorophyll pigments., Saga Y, Tamiaki H, Chemistry & biodiversity, Chemistry & biodiversity, 9(9), 1659 - 1683, Sep. 2012 , Refereed
  • Structural Change of Pheophorbide a Methyl Ester by Contact with Titanium Oxide Particles, Y. Saga, T. Otono, Chemistry Letters, Chemistry Letters, 41(4), 360 - 362, Apr. 05 2012 , Refereed
  • Kinetic analysis of demetalation of synthetic zinc cyclic tetrapyrroles possessing an acetyl group at the 3-position: effects of tetrapyrrole structures and peripheral substitution., Saga Y, Miura R, Sadaoka K, Hirai Y, The journal of physical chemistry. B, The journal of physical chemistry. B, 115(40), 11757 - 11762, Oct. 13 2011 , Refereed
  • Biosynthesis of unnatural bacteriochlorophyll c derivatives esterified with α,ω-diols in the green sulfur photosynthetic bacterium Chlorobaculum tepidum., Nishimori R, Mizoguchi T, Tamiaki H, Kashimura S, Saga Y, Biochemistry, Biochemistry, 50(36), 7756 - 7764, Sep. 13 2011 , Refereed
  • Effects of molecular structures on reduction properties of formyl groups in chlorophylls and pheophytins prepared from oxygenic photosynthetic organisms., Sadaoka K, Kashimura S, Saga Y, Bioorganic & medicinal chemistry, Bioorganic & medicinal chemistry, 19(13), 3901 - 3905, Jul. 01 2011 , Refereed
  • Substitution effects in the A- and B-rings of the chlorin macrocycle on demetalation properties of zinc chlorophyll derivatives., Hirai Y, Sasaki S, Tamiaki H, Kashimura S, Saga Y, The journal of physical chemistry. B, The journal of physical chemistry. B, 115(12), 3240 - 3244, Mar. 31 2011 , Refereed
  • Demetalation kinetics of chlorophyll derivatives possessing different substituents at the 7-position under acidic conditions., Hirai Y, Kashimura S, Saga Y, Photochemistry and photobiology, Photochemistry and photobiology, 87(2), 302 - 307, Mar. 2011 , Refereed
  • Comparison of demetalation properties between zinc chlorin and zinc porphyrin derivatives: effect of macrocyclic structures., Saga Y, Hojo S, Hirai Y, Bioorganic & medicinal chemistry, Bioorganic & medicinal chemistry, 18(15), 5697 - 5700, Aug. 01 2010 , Refereed
  • Kinetic Analysis of Reduction of Formyl Groups in Chlorophyll d and Pheophytin d, K. Sadaoka, Y. Hirai, S. Kashimura, Y. Saga, Chemistry Letters, Chemistry Letters, 39(6), 567 - 569, Jun. 05 2010 , Refereed
  • Spectral Properties of Single Light-Harvesting Complexes in Bacterial Photosynthesis, Y. Saga, Y. Shibata, H. Tamiaki, Journal of Photochemistry and Photobiology C: Photochemistry Reviews, Journal of Photochemistry and Photobiology C: Photochemistry Reviews, 11(1), 15 - 24, Mar. 2010 , Refereed
  • Demetalation kinetics of natural chlorophylls purified from oxygenic photosynthetic organisms: effect of the formyl groups conjugated directly to the chlorin pi-macrocycle., Hirai Y, Tamiaki H, Kashimura S, Saga Y, Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 8(12), 1701 - 1707, Dec. 2009 , Refereed
  • Changes of Aqueous Self-Assemblies of Zinc Chlorophyll Derivatives Possessing a Hydrophilic Chain by Treatment with Organic Solvents, Y. Saga, T. Nakagawa, T. Miyatake, H. Tamiaki, Chemistry Letters, Chemistry Letters, 38(9), 882 - 883, Sep. 05 2009 , Refereed
  • Physicochemical Studies of Demetalation of Light-Harvesting Bacteriochlorophyll Isomers Purified from Green Sulfur Photosynthetic Bacteria, Y. Hirai, H. Tamiaki, S. Kashimura, Y. Saga, Photochemistry and Photobiology, Photochemistry and Photobiology, 85(5), 1140 - 1146, Sep. 2009 , Refereed
  • Anisotropic Distribution of Emitting Transition Dipoles in Chlorosome from Chlorobium tepidum: Fluorescence Polarization Anisotropy Study of Single Chlorosomes, Y. Shibata, Y. Saga, H. Tamiaki, S. Itoh, Photosynthesis Research, Photosynthesis Research, 100(2), 67 - 78, May 2009 , Refereed
  • Temperature-Dependent Spectral Changes of Self-Aggregates of Zinc Chlorophylls Esterified by Different Linear Alcohols at the 17-Propionate, Y. Saga, Y. Nakai, H. Tamiaki, Supramolecular Chemistry, Supramolecular Chemistry, 21(8), 738 - 746, 2009 , Refereed
  • Spectroscopic Properties and Bacteriochlorophyll c Isomer Composition of Extramembranous Light-Harvesting Complexes in the Green Sulfur Photosynthetic Bacterium Chlorobium tepidum and Its CT0388-Deleted Mutant under Vitamin B12-Limited Conditions, Y. Saga, J. Harada, H. Hattori, K. Kaihara, Y. Hirai, H. Oh-oka, H. Tamiaki, Photochemical and Photobiological Sciences, Photochemical and Photobiological Sciences, 7(10), 1210 - 1215, Oct. 2008 , Refereed
  • Direct Counting of Submicrometer-Sized Photosynthetic Apparatus Dispersed in Medium at Cryogenic Temperature by Confocal Laser Fluorescence Microscopy: Estimation of the Number of Bacteriochlorophyll c in Single Light-Harvesting Antenna Complexes Chloroso, Y. Saga, Y. Shibata, S. Itoh, H. Tamiaki, The Journal of Physical Chemistry B, The Journal of Physical Chemistry B, 111(43), 12605 - 12609, Nov. 01 2007 , Refereed
  • Polarized Fluorescence of Aggregated Bacteriochlorophyll c and Baseplate Bacteriochlorophyll a in Single Chlorosomes Isolated from Chloroflexus aurantiacus, Y. Shibata, Y. Saga, H. Tamiaki, S. Itoh, Biochemistry, Biochemistry, 46(23), 7062 - 7068, Jun. 12 2007 , Refereed
  • Kinetic Analysis of Demetalation of Bacteriochlorophyll c and e Homologs Purified from Green Sulfur Photosynthetic Bacteria, Y. Saga, Y. Hirai, H. Tamiaki, FEBS Letters, FEBS Letters, 581(9), 1847 - 1850, May 01 2007 , Refereed
  • Reactivity of methyltransferase involved in biosynthesis of chlorophyllous pigments in photosynthetic green sulfur bacteria - Abstracts, Harada Jiro, Osumi Shigeaki, Saga Yoshitaka, Oh-oka Hirozo, Tamiaki Hitoshi, JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC, JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC, 42(3-4), 131, Nov. 02 2006 , Refereed
  • Low-Temperature Fluorescence from Single Chlorosomes, Photosynthetic Antenna Complexes of Green Filamentous and Sulfur Bacteria, Y. Shibata, Y. Saga, H. Tamiaki, S. Itoh, Biophysical Journal, Biophysical Journal, 91(10), 3787 - 3796, Nov. 2006 , Refereed
  • Transmission Electron Microscopic Study on Supramolecular Nanostructures of Bacteriochlorophyll Self-Aggregates in Chlorosomes of Green Photosynthetic Bacteria, Y. Saga, H. Tamiaki, Journal of Bioscience and Bioengineering, Journal of Bioscience and Bioengineering, 102(2), 118 - 123, Aug. 2006 , Refereed
  • Crystal Structures of BchU, a Methyltransferase Involved in Bacteriochlorophyll c Biosynthesis, and its Complex with S-adenosylhomocysteine: Implications for Reaction Mechanism, K. Wada, H. Yamaguchi, J. Harada, K. Niimi, S. Osumi, Y. Saga, H. Oh-oka, H. Tamiaki, K. Fukuyama, Journal of Molecular Biology, Journal of Molecular Biology, 360(4), 839 - 849, Jul. 21 2006 , Refereed
  • Self-Assembly of Natural Light-Harvesting Bacteriochlorophylls of Green Sulfur Photosynthetic Bacteria in Silicate Capsules as Stable Models of Chlorosomes, Y. Saga, S. Akai, T. Miyatake, H. Tamiaki, Bioconjugate Chemistry, Bioconjugate Chemistry, 17(4), 988 - 994, Jul. 19 2006 , Refereed
  • Single Supramolecule Spectroscopy of Natural and Alkaline-Treated Chlorosomes from Green Sulfur Photosynthetic Bacteria, Y. Saga, T. Wazawa, Y. Ishii, T. Yanagida, H. Tamiaki, Journal of Nanoscience and Nanotechnology, Journal of Nanoscience and Nanotechnology, 6(6), 1750 - 1757, Jun. 2006 , Refereed
  • Assembly of Extramembranous Light-Harvesting Complexes of Green Sulfur Photosynthetic Bacterium Chlorobium tepidum on Glass Surface by Electrostatic Layer-by-Layer Adsorption, Y. Saga, T.-Y. Kim, T. Hisai, H. Tamiaki, Thin Solid Films, Thin Solid Films, 500(1-2), 278 - 282, 2006 , Refereed
  • Bacteriochlorophyll-c Homolog Composition in Green Sulfur Photosynthetic Bacterium Chlorobium vibrioforme Dependent on the Concentration of Sodium Sulfide in Liquid Cultures, Y. Saga, S. Osumi, H. Higuchi, H. Tamiaki, Photosynthesis Research, Photosynthesis Research, 86, 123 - 130, 2005 , Refereed
  • Different Sensitivities to Oxygen between Two Strains of the Photosynthetic Green Sulfur Bacterium Chlorobium vibrioforme NCIB 8327 with Bacteriochlorophyll c and d, J. Harada, Y. Saga, H. Oh-oka, H. Tamiaki, Photosynthesis Research, Photosynthesis Research, 86, 137 - 143, 2005 , Refereed
  • Excitation Energy Transfer in Individual Light-Harvesting Chlorosome from Green Photosynthetic Bacterium Chloroflexus aurantiacus at Cryogenic Temperature, Y. Saga, H. Tamiaki, Y. Shibata, S. Itoh, Chemical Physics Letters, Chemical Physics Letters, 409(1-3), 34 - 37, 2005 , Refereed
  • In vitro Activity of C-20 Methyltransferase, BchU, Involved in Bacteriochlorophyll c Biosynthetic Pathway in Green Sulfur Bacteria, J. Harada, Y. Saga, Y. Yaeda, H. Oh-oka, H. Tamiaki, FEBS Letters, FEBS Letters, 579(9), 1983 - 1987, 2005 , Refereed
  • Comparison between Chlorosomes Containing Bacteriochlorophyll-c and Chlorosomes Containing Bacteriochlorophyll-d Isolated from Two Substrains of Green Sulfur Photosynthetic Bacterium Chlorobium vibrioforme NCIB 8327, Y. Saga, H. Tamiaki, Journal of Photochemistry and Photobiology B: Biology, Journal of Photochemistry and Photobiology B: Biology, 75, 89 - 97, 2004 , Refereed
  • Excitation Energy Transfer from Self-Aggregates of Zinc Chlorins to a Bacteriochlorin in a Silicate Nanocapsule, Y. Saga, S. Akai, T. Miyatake, H. Tamiaki, Chemistry Letters, Chemistry Letters, 33(5), 544 - 545, 2004 , Refereed
  • Facile Synthesis of Chlorophyll Analog Possessing a Disulfide Bond and Formation of Self-Assembled Monolayer on Gold Surface, Y. Saga, H. Tamiaki, Journal of Photochemistry and Photobiology B: Biology, Journal of Photochemistry and Photobiology B: Biology, 73, 29 - 34, 2004 , Refereed
  • Fluorescence Spectroscopy of Single Photosynthetic Light-Harvesting Supramolecular Systems, Y. Saga, H. Tamiaki, Cell Biochemistry and Biophysics, Cell Biochemistry and Biophysics, 40, 149 - 165, 2004 , Refereed
  • Presence of Exclusively Bacteriochlorophyll-c Containing Substrain in the Culture of Green Sulfur Photosynthetic Bacterium Chlorobium vibrioforme Strain NCIB 8327 Producing Bacteriochlorophyll-d, Y. Saga, H. Oh-oka, T. Hayashi, H. Tamiaki, Analytical Sciences, Analytical Sciences, 19(12), 1575 - 1579, 2003 , Refereed
  • Synthesis of Homologously Pure Bacteriochlorophyll-e and f Analogues from BChls-c/d via Transformation of the 7-Methyl to Formyl Group and Self-Aggregation of Synthetic Zinc Methyl Bacteriopheophorbides-c/d/e/f in Non-Polar Organic Solvent, H. Tamiaki, M. Omoda, Y. Saga, H. Morishita, Tetrahedron, Tetrahedron, 59(24), 4337 - 4350, 2003 , Refereed
  • Isolation and Structure Determination of a Complete Set of Bacteriochlorophyll-d Homologs and Epimers from a Green Sulfur Bacterium Chlorobium vibrioforme and Their Aggregation Properties in Hydrophobic Solvents, T. Mizoguchi, Y. Saga, H. Tamiaki, Photochemical & Photobiological Sciences, Photochemical & Photobiological Sciences, 1, 780 - 787, 2002 , Refereed
  • Spectral Heterogeneity in Single Light-Harvesting Chlorosomes from Green Sulfur Photosynthetic Bacterium Chlorobium tepidum, Y. Saga, T. Wazawa, T. Mizoguchi, Y. Ishii, T. Yanagida, H. Tamiaki, Photochemistry and Photobiology, Photochemistry and Photobiology, 75, 433 - 436, 2002 , Refereed
  • Self-Assembly of Synthetic Zinc Chlorins in a Silicate Micelle Prepared by Sol-Gel Process, Y. Saga, T. Miyatake, H. Tamiaki, Bioorganic and Medicinal Chemistry Letters, Bioorganic and Medicinal Chemistry Letters, 12(8), 1229 - 1231, 2002 , Refereed
  • Fluorescence Emission Spectroscopy of Single Light-Harvesting Complex from Green Filamentous Photosynthetic Bacteria, Y. Saga, T. Wazawa, T. Nakada, Y. Ishii, T. Yanagida, H. Tamiaki, The Journal of Physical Chemistry B, The Journal of Physical Chemistry B, 106(6), 1430 - 1433, 2002 , Refereed
  • Effect of Metal Ion Exchange on the Photocurrent Response from Bacteriorhodopsin on Tin Oxide Electrodes, Y. Saga, T. Ishikawa, T. Watanabe, Bioelectrochemistry, Bioelectrochemistry, 57, 17 - 22, 2002 , Refereed
  • Spectroscopic Studies on Self-Aggregation of Bacteriochlorophyll-e in Nonpolar Organic Solvents: Effects of Stereoisomeric Configuration at the 31-Position and Alkyl Substituents at the 81-Position, Y. Saga, K. Matsuura, H. Tamiaki, Photochemistry and Photobiology, Photochemistry and Photobiology, 74, 72 - 80, 2001 , Refereed
  • Effect of Lanthanum Ions on the Photoelectrochemical Response of Bacteriorhodopsin, Y. Saga, T. Ishikawa, T. Watanabe, Chemistry Letters, Chemistry Letters, (2), 106 - 107, 2001 , Refereed
  • Buffer Effect on the Photoelectrochemical Response of Bacteriorhodopsin, Y. Saga, T. Watanabe, K. Koyama, T. Miyasaka, Analytical Sciences, Analytical Sciences, 15(4), 365 - 369, 1999 , Refereed
  • Mechanism of Photocurrent Generation from Bacteriorhodopsin on Gold Electrodes, Y. Saga, T. Watanabe, K. Koyama, T. Miyasaka, The Journal of Physical Chemistry B, The Journal of Physical Chemistry B, 103(1), 234 - 238, 1999 , Refereed
  • pH-Dependent Photocurrent Response from Bacteriorhodopsin at Electrode-Electrolyte Interfaces, Y. Saga, T. Watanabe, K. Koyama, T. Miyasaka, Chemistry Letters, Chemistry Letters, (9), 961 - 962, 1998 , Refereed
  • Molecular Design for a Pinpoint RNA Scission. Interposition of Oligoamines between Two DNA Oligomers, M. Endo, Y. Azuma, Y. Saga, A. Kuzuya, G. Kawai, M. Komiyama, The Journal of Organic Chemistry, The Journal of Organic Chemistry, 62(4), 846 - 852, 1997 , Refereed
  • A Novel Phosphoramidaite for the Site-Selective Introduction of Functional Groups into Oligonucleotides via Versatile Tethers, M. Endo, Y. Saga, M. Komiyama, Tetrahedron Letters, Tetrahedron Letters, 35(32), 5879 - 5882, 1994 , Refereed

Research Grants & Projects

  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(若手研究(B)), Analysis of light-harvesting supramolecular complexes of green photosynthetic bacteria by regulation of structural changes, Spectral properties and functions of major light-harvesting complexes, chlorosomes, of green photosynthetic bacteria were characterized by induction of changes of their components and supramolecular structures. Isomer composition changes of light-harvesting bacteriochlorophylls in cells of green sulfur photosynthetic bacteria were successfully performed by changes of cultivating conditions. Spectroscopic properties of chlorosomes that were isolated from these bacteria were analyzed. Spectral changes of pigment supramolecules mimicking chlorosomes by external stimuli were also examined. In a...