Sato, T., Kikukawa, T., Miyoshi, R., Kajimoto, K., Yonekawa, C., Fujisawa, T., Unno, M., Eki, T., Hirose, Y., Protochromic absorption changes in the two-cysteine photocycle of a blue/orange cyanobacteriochrome, J. Biol. Chem., accepted.

Fujisawa, T., Kiyota, H., Kikukawa, T., Unno, M., Low-Temperature Raman Spectroscopy of Halorhodopsin from Natronomonas pharaonis: Structural Discrimination of Blue-Shifted and Red-Shifted Photoproducts, Biochemistry 58: 4159-4167 (2019).

Iizuka, A., Kajimoto, K., Fujisawa, T., Tsukamoto, T., Aizawa, T., Kamo, N., Jung, KH, Unno, M., Demura, M., Kikukawa, T., Functional importance of the oligomer formation of the cyanobacterial H+ pump Gloeobacter rhodopsin, Sci. Rep. 9: 10711 (2019).

Yanagi, T., Takagi, T., Takahashi, H., Kikukawa, T., Amii, H., Sonoyama, M., Comparison of two different partially fluorinated phosphatidylcholines with the perfluorobutyl group on thermotropic properties of the bilayer membrane and reconstituted bacteriorhodopsin, Biophys. Rev. 11: 395-398 (2019).

Geng, X., Dai, G., Chao, L., Wen, D., Kikukawa, T., Iwasa, T., Two Consecutive Polar Amino Acids at the End of Helix E are Important for Fast Turnover of the Archaerhodopsin Photocycle, Photochem. Photobiol., 95: 980-989 (2019).

Takahashi, H., Yoshino, M., Morita, K., Takagi, T., Yokoyama, Y., Kikukawa, T., Amii, H., Kanamori, T., Sonoyama, M., Stability of the two-dimensional lattice of bacteriorhodopsin reconstituted in partially fluorinated phosphatidylcholine bilayers, BBA-Biomembranes, 1861: 631-642 (2019) DOI: 10.1016/j.bbamem.2018.12.015

Hasemi, T., Kikukawa, T., Watanabe, Y., Aizawa, T., Miyauchi, S., Kamo, N., Demura, M., Photochemical study of a cyanobacterial chloride-ion pumping rhodopsin, BBA-Bioenergetics, 1860: 136-146 (2019)

Tsukamoto, T., Kikuchi, C., Suzuki, H., Aizawa, T., Kikukawa, T., Demura, M., Implications for the impairment of the rapid channel closing of Proteomonas sulcata anion channelrhodopsin 1 at high Cl- concentrations, Sci. Rep., 8: 13445 (2018)

Fujisawa, T., Abe, M., Tamogami, J., Kikukawa, T., Kamo, N., Unno, M., Low-temperature Raman spectroscopy reveals small chromophore distortion in primary photointermediate of proteorhodopsin., FEBS Lett. 592:3054-3061 (2018)

Tamogami, J., Kikukawa, T., Ohkawa, K., Ohsawa, N., Nara, T., Demura, M., Miyauchi, S., Kimura-Someya, T., Shirouzu, M., Yokoyama, S., Shimono, K., Kamo, N., Interhelical interactions between D92 and C218 in the cytoplasmic domain regulate proton uptake upon N-decay in the proton transport of Acetabularia rhodopsin II, J. Photochem. Photobiol. B, 183: 35-45 (2018)

Dai, G., Geng, X., Chao, L., Tamogami, J., Kikukawa, T., Demura, M., Kamo, N., Iwasa, T., Photocycle of Sensory Rhodopsin II from Halobacterium salinarum (HsSRII): Mutation of D103 Accelerates M Decay and Changes the Decay Pathway of a 13-cis O-like Species, Photochem. Photobiol., 94: 705-714 (2018)

Nakajima, Y., Tsukamoto, T., Kumagai, Y., Ogura, Y., Hayashi, T., Song, J., Kikukawa, T., Demura, M., Kogure, K., Sudo, Y., Yoshizawa, S., Microbes Environ. 33: 89-97 (2018)

Amrutha, A.S., Kumar, K.R.S., Kikukawa, T., Tamaoki, N., Targeted Activation of Molecular Transportation by Visible Light, ACS Nano, 11: 12292-12301 (2017)

Inoue, S., Yoshizawa, S., Nakajima, Y., Kojima, K., Tsukamoto, T., Kikukawa, T., Sudo, Y., Spectroscopic characteristics of Rubricoccus marinus xenorhodopsin (RmXeR) and a putative model for its inward H+ transport mechanism, Phys. Chem. Chem. Phys. (2017), DOI: 10.1039/c7cp05033j

Yokoyama, Y., Tanaka, H. Yano, S., Takahashi, H., Kikukawa, T., Sonoyama, M., Takenaka, K., Spontaneous stacking of purple membranes during immobilization with physical cross-linked poly(vinyl alcohol) hydrogel with retaining native-like functionality of bacteriorhodopsin, J. Appl. Phys., 121, 204701 (2017).

Kajimoto, K., Kikukawa, T., Nakashima, H., Yamaryo, H., Saito, Y., Fujisawa, T., Demura, M., Unno, M., Transient Resonance Raman Spectroscopy of a Light-Driven Sodium-Ion-Pump Rhodopsin from Indibacter alkaliphilus,  J. Phys. Chem. B., 121: 4431-4437 (2017) 

Tsukamoto, T., Yoshizawa, S., Kikukawa, T., Demura, M., Sudo, Y., Implications for the Light-Driven Chloride Ion Transport Mechanism of Nonlabens marinus Rhodopsin 3 by Its Photochemical Characteristics,  J. Phys. Chem. B., 121: 2027-2038 (2017)

Tamogami, J., Kikukawa, T., Nara, T., Demura, M., Kimura-Someya, T., Shirouzu, M., Yokoyama, S., Miyauchi, S., Shimono, K., Kamo, N., Existence of two O-like intermediates in the photocycle of Acetabularia rhodopsin II, a light-driven proton pump from a marine alga, Biophys. Physicobiol., 14: 49-55 (2017)

Nakamura, S., Kikukawa, T., Tamogami, J., Kamiya, M., Aizawa, T., Hahn, M., Ihara, K., Kamo, N., Demura, M., Photochemical characterization of actinorhodopsin and its functional existence in the natural host, BBA-BIOENERGETICS, 1857: 1900-1908 (2016)

Tamogami, J., Sato, K., Kurokawa, S., Yamada, T., Nara, T., Demura, M., Miyauchi, S., Kikukawa, T., Muneyuki, E., Kamo, N., Formation of M-Like Intermediates in Proteorhodopsin in Alkali Solutions (pH ≥ ∼8.5) Where the Proton Release Occurs First in Contrast to the Sequence at Lower pH, Biochemistry 55: 1036-1048 (2016)

Kuddus, MR., Rumi, F., Tsutsumi, M., Takahashi, R., Yamano, M., Kamiya, M., Kikukawa, T., Demura, M., Aizawa, T., Expression, purification and characterization of the recombinant cysteine-rich antimicrobial peptide snakin-1 in Pichia pastoris, Protein Expr. Purif. 122: 15-22 (2016)

Tamaki, H., Egawa, A., Kido, K., Kameda, T., Kamiya, M., Kikukawa, T., Aizawa, T., Fujiwara, T., Demura, M., Structure determination of uniformly 13C, 15N labeled protein using qualitative distance restraints from MAS solid-state 13C-NMR observed paramagnetic relaxation enhancement, J. Biol. NMR 64: 87-101 (2016) 

Tsutsumi, M., Muto, H., Myoba, S., Kimoto, M., Kitamura, A., Kamiya, M., Kikukawa, T., Takiya, S., Demura, M., Kawano, K., Kinjo, M., Aizawa, T., In vivo fluorescence-correlation spectroscopy analyses of FMBP-1, a silkworm transcription factor, FEBS Open Bio. 6: 106-125 (2016)

Hasemi, T., Kikukawa, T., Kamo, N., Demura, M., Characterization of a Cyanobacterial Chloride-Pumping Rhodopsin and its Conversion into a Proton Pump, J. Biol. Chem. 291: 355-362 (2016).

Baek, M., Kamiya, M., Kushibiki, T., Nakazumi, T., Tomisawa, S., Abe, C., Kumaki, Y., Kikukawa, T., Demura, M., Kawano, K., Aizawa, T., Lipopolysaccharide-bound structure of the antimicrobial peptide cecropin P1 determined by nuclear magnetic resonance spectroscopy, J. Pept. Sci., 22: 214-221 (2015)

Furuse, M., Tamogami, J., Hosaka, T., Kikukawa, T., Shinya, N., Hato, M., Ohsawa, N., Kim, S.Y., Jung, K.-H., Demura, M., Miyauchi, S., Kamo, N., Shimono, K., Kimura-Someya, T., Yokoyama, S., Shirouzu, M., Structural basis for the slow photocycle and late proton release in Acetabularia rhodopsin I from the marine plant Acetabularia acetabulum, Acta Crystallogr. D Biol. Crystallogr. D71: 2203-2216 (2015).

Chaoluomeng, Dai, G., Kikukawa, T., Ihara, K., Iwasa, T., Microbial rhodopsins of Halorubrum species isolated from Ejinoor salt lake in Inner Mongolia of China, Photochem. Photobiol. Sci., 14: 1974-1982 (2015).

Kikukawa, T., Kusakabe, C., Kokubo, A., Tsukamoto, T., Kamiya, M., Aizawa, T., Ihara, K., Kamo, N., Demura, M., Probing the Cl--pumping photocycle of pharaonis halorhodopsin: Examinations with bacterioruberin, an intrinsic dye, and membrane potential-induced modulation of the photocycle, Biochim. Biophys. Acta, 1847: 748-758 (2015).

Tomisawa, S., Sato, Y., Kamiya, M., Kumaki, Y., Kikukawa, T., Kawano, K., Demura, M., Nakamura, K., Ayabe, T., Aizawa, T., Efficient production of a correctly folded mouse α-defensin, cryptdin-4, by refolding during inclusion body solubilization, Protein Expr. Purif., 112: 21-28 (2015).

Tamogami, J., Iwano, K., Matsuyama, A., Kikukawa, T., Demura, M., Nara, T., Kamo, N., The effects of chloride ion binding on the photochemical properties of sensory rhodopsin II from Natronomonas pharaonis, J. Photochem. Photobiol. Sci., 141: 192-201 (2014).

Kushibiki, T., Kamiya, M., Aizawa, T., Kumaki, Y., Kikukawa, T., Mizuguchi, M., Demura, M., Kawabata, S., Kawano, K., Interaction between tachyplesin I, an antimicrobial peptide derived from horseshoe crab, and lipopolysaccharide, Biochim. Biophys. Acta, 1844: 527-534 (2014).

Shibasaki, K., Shigemura, H., Kikukawa, T., Kamiya, M., Aizawa, T., Kawano, K., Kamo, N., Demura, M., Role of Thr218 in the Light-Driven Anion Pump Halorhodopsin from Natronomonas pharaonis, Biochemistry, 52: 9257-9268 (2013).

Tomisawa, S., Hojo, E., Umetsu, Y., Ohki, S., Kato, Y., Miyazawa, M., Mizuguchi, M., Kamiya, M., Kumaki, Y., Kikukawa, T., Kawano, K., Demura, M., Aizawa, T., Overexpression of an antimicrobial peptide derived from C. elegans using an aggregation-prone protein coexpression system, AMB Express, 3: 45 (2013).

Tomisawa, S., Abe, C., Kamiya, M., Kikukawa, T., Demura, M., Kawano, K., Aizawa, T., A new approach to detect small peptides clearly and sensitively by Western blotting using a vacuum-assisted detection method, Biophysics, 9:79-83 (2013).

Yoshino, M., Kikukawa, T., Takahashi, H., Takagi, T., Yokoyama, Y., Amii, H., Baba, T., Kanamori, T., Sonoyama, M., Physicochemical Studies of Bacteriorhodopsin Reconstituted in Partially Fluorinated Phosphatidylcholine Bilayers, J. Phys. Chem. B, 117: 5422-5429 (2013)

Unno, M., Kikukawa, T., Kumauchi, M., Kamo, N., Exploring the active site structure of a photoreceptor protein by Raman optical activity, J. Phys. Chem. B, 117: 1321-1325 (2013)

Hayashi, S., Tamogami, J., Kikukawa, T., Okamoto, H., Shimono, K., Miyauchi, S., Demura, M., Nara, T., Kamo, N., Thermodynamic Parameters of Anion Binding to Halorhodopsin from Natronomonas pharaonis by Isothermal Titration Calorimetry, Biophys. Chem. 172: 61-67 (2013)

Tsukamoto T, Kikukawa T, Kurata T, Jung KH, Kamo N, Demura M., Salt bridge in the conserved His-Asp cluster in Gloeobacter rhodopsin contributes to trimer formation, FEBS Lett. 587: 322-327 (2013)

Tamogami, J., Kikukawa, T., Nara, T., Shimono, K., Demura, M., Kamo, N., The Photo-induced Proton Release in Proteorhodopsin at Low pH: The Possibility of the pKa Decrease of Asp227, Biochemistry 51: 9290-9301 (2012)

Reissig, L., Iwata, T., Kikukawa, T., Demura, M., Kamo, N., Kandori, H., Sudo, Y., The influence of halide binding on the hydrogen bonding network in the active site of Salinibacter sensory rhodopsin I, Biochemistry 51: 8802-8813 (2012)

Furutani, Y., Fujiwara, K., Kimura, T., Kikukawa, T., Demura, M., Kandori, H., Dynamics of Dangling Bonds of Water Molecules in pharaonis Halorhodopsin during Chloride Ion Transportation, J.Phys.Chem.Lett., 3: 2964-2969 (2012)

Tsukamoto, T., Sasaki, T., Fujimoto, K.J., Kikukawa, T., Kamiya, M., Aizawa, T., Kawano, K., Kamo, N., Demura, M., Homo-trimer Formation and Dissociation of pharaonis Halorhodopsin in Detergent System, Biophys. J. 102: 2906-2915 (2012)

Tamogami, J., Kikukawa, T., Ikeda, Y., Demura, M., Nara, T., Kamo, N., Photo-induced Bleaching of Sensory Rhodopsin II (Phoborhodopsin) from Halobacterium salinarum by Hydroxylamine: Identification of the Responsible Intermediates, J. Photochem. Photobiol. B, 106: 87-94 (2012)

Kikukawa, T., Shimono, K., Tamogami, J., Miyauchi, S., Kim, S., Kimura-Someya, T., Shirouzu, M., Jung, K.-H., Yokoyama, S., Kamo, N., Photochemistry of Acetabularia Rhodopsin II from a Marine Plant, Acetabularia acetabulum, Biochemistry 50: 8888-8898 (2011)

Yamashita, Y., Kikukawa, T., Tsukamoto, T., Kamiya, M., Aizawa, T., Kawano, K., Miyauchi, S., Kamo, N., Demura, M., Expression of salinarum halorhodopsin in Escherichia coli cells: solubilization in the presence of retinal yields the natural state, Biochim. Biophys. Acta 1808: 2905-2912 (2011)

Wada, T., Shimono, K., Kikukawa, T., Hato, M., Shinya, N. Kim, S-Y., Kimura-Someya, T., Shirouzu, M., Tamogami, J., Miyauchi, S., Jung, K-W., Kamo, N., Yokoyama, S., Crystal structure of the eukaryotic light-driven proton pumping rhodopsin, Acetabularia rhodopsin II, from marine alga, J. Mol. Biol. 411: 986-998 (2011)

Tateishi, Y., Abe, T., Tamogami, J., Nakao, Y., Kikukawa, T., Kamo, N., Unno, M., Spectroscopic Evidence for the Formation of an N Intermediate during the Photocycle of Sensory Rhodopsin II (Phoborhodopsin) from Natronobacterium pharaonis, Biochemistry, 50: 2135-2143 (2011)

Sudo, Y, Ihara, K., Kobayashi, S., Suzuki, D., Irieda, H., Kikukawa, T., Kandori, H., Homma, M., A microbial rhodopsin with a unique retinal composition shows both sensory rhodopsin II and bacteriorhodopsin-like properties, J. Biol. Chem. 286: 5967-5976 (2011)

Nakao, Y., Kikukawa, T., Shimono, K., Tamogami, J., Kimitsuki, N., Nara, T., Unno, M., Ihara, K., Kamo, N., Photochemistry of a putative new class of sensory rhodopsin (SRIII) coded by xop2 of Haloarcular marismortui, J. Photochem. Photobiol. B, 102: 45-54 (2011)

Tamogami, J., Kikukawa, T., Ikeda, Y., Takemura, A., Demura, M., Kamo, N., The photochemical reaction cycle and photo-induced proton transfer of sensory rhodopsin II (phoborhodopsin) from Halobacterium salinarum, Biophys. J. 98: 1353-1363 (2010)

Yamamoto, T., Sugawara, M., Kikukawa, T., Miyauchi, S., Yamaguchi, M., Tero, A., Takagi, S., Nakagaki, T., Kinetic study of anti-viral ribavirin uptake mediated by hCNT3 and hENT1 in Xenopus laevis oocytes, Biophys. Chem.147: 59-65 (2010)

Nonaka, Y, Muto, H., Aizawa, T., Okabe, E., Myoba, S., Yokoyama, T., Saito, S., Tatami, F., Kumaki, Y., Kamiya, M., Kikukawa, T., Mizuguchi, M., Takiya, S., Kinjo, M., Demura, M., Kawano, K., STPR, a 23-Amino Acid Tandem Repeat Domain, Found in the Human Function-Unknown Protein ZNF821, Biochemistry 49: 8367-8375 (2010)

Yagasaki, J., Suzuki, D., Ihara, K., Inoue, K., Kikukawa, T., Sakai, M., Fujii, M., Homma, M., Kandori, H., Sudo, Y., Spectroscopic Studies of a Sensory Rhodopsin I Homologue from the Archaeon Haloarcula vallismortis, Biochemistry 49: 1183-1190 (2010)

Dai, G., Ohno, Y., Ikeda, Y., Tamogami, J., Kikukawa, T., Kamo, N., Iwasa, T., Photoreaction Cycle of Phoborhodopsin (Sensory Rhodopsin II) from Halobacterium salinarum Expressed in Escherichia coli, Photochem. Photobiol. 86: 571-579 (2010)

Sasaki, T., Aizawa, T., Kamiya, M., Kikukawa, T., Kawano, K., Kamo, N., Demura, M., Effect of Chloride Binding on the Thermal Trimer-Monomer Conversion of Halorhodopsinin the Solubilized System, Biochemistry 48: 12089-12095 (2009)

Sonoyama, M., Kikukawa, T., Yokoyama, Y., Demura, M., Kamo, N., Mitaku, S., Effect of molecular assembly on photocycle of reconstituted bacteriorhodopsin: Significant blue shift of the late M photointermediate in the liquid crystalline phase, Chem. Lett., 38: 1134-1135 (2009)

Shimono K., Goto M., Kikukawa, T., Miyauchi S., Shirouzu M., Kamo N., Yokoyama S., Production of functional bacteriorhodopsin by an Escherichia coli cell-free protein synthesis system supplemented with steroid detergent and lipid, Protein Sci. 18: 2160-2171 (2009)

Suzuki, D., Furutani, Y., Inoue, K., Kikukawa, T., Sakai, M., Fujii, M., Kandori, H., Homma, M., Sudo, Y., Effects of chloride ion binding on the photochemical properties of Salinibacter sensory rhodopsin I, J. Mol. Biol. 392: 48-62 (2009)

Sasaki T., Kubo M., Kikukawa, T., Kamiya M., Aizawa T., Kawano K., Kamo N., Demura M., Halorhodopsin from Natronomonas pharaonis forms a trimer even in the presence of a detergent, dodecyl-b-D-maltoside, Photochem. Photobiol. 85: 130-136 (2009)

Kubo, M., Kikukawa, T., Miyauchi, S., Seki, A., Kamiya, M., Aizawa, T., Kawano, K., Kamo N., Demura, M., Role of Arg123 in light-driven anion pump mechanisms of pharaonis halorhodopsin, Photochem. Photobiol. 85: 547-555 (2009)

Tamogami, J., Kikukawa, T., Miyauchi, S., Muneyuki, E., Kamo, N., A tin-oxide transparent electrode is a handy and quick pH-sensitive electrode: Application to analysis of the photo-induced proton transfer of bacteriorhodopsin and proteorhodopsin, Photochem. Photobiol.85: 578-589 (2009)

Nonaka, Y., Akieda, E., Aizawa, T., Watanabe, N., Kamiya, M., Kumaki, Y., Mizuguchi, M., Kikukawa, T., Demura M., Kawano, K., X-ray crystallography and structural stability of digestive lysozyme from cow stomach, FEBS J. 276: 2192-2200 (2009)

Kikukawa, T., Saha, C. K., Balashov, S. P., Imasheva, E. S., Zaslavsky, D., Gennis, R. B., Abe, T., Kamo, N., The lifetimes of pharaonis phoborhodopsin signaling states depend on the rates of proton transfers: Effects of hydrostatic pressure and stopped flow experiments, Photochem. Photobiol. 84: 880-888 (2008)

Kamijima T., Ohmura A., Sato T., Akimoto K., Itabashi M., Mizuguchi M., Kamiya M., Kikukawa, T., Aizawa T., Takahashi M., Kawano K., Demura M., Heat-treatment method for producing fatty acid-bound alpha-lactalbumin that induces tumor cell death, Biochem. Biophys. Res. Commun. 376:211-214 (2008)

Hasegawa, C., Kikukawa, T., Miyauchi, S., Seki, A., Sudo, Y., Kubo, M., Demura, M., Kamo, N., Interaction of the halobacterial transducer to a halorhodopsin mutant engineered so as to bind the transducer: Cl- circulation within the extracellular channel, Photochem. Photobiol. 83: 293-302 (2007)

Seki, A., Miyauchi, S., Hayashi, S., Kikukawa, T., Kubo, M., Demura, M., Ganapathy, V., Kamo, N., Heterologous expression of pharaonis halorhodopsin in Xenopus laevis oocytes and electrophysiological characterization of its light-driven Cl- pump activity, Biophys. J., 92: 2559-2569 (2007)

Kikukawa, T., Miyauchi, S., Araiso, T., Kamo, N., Nara, T., Anti-parallel membrane topology of two components of EbrAB, a multidrug transporter. Biochem. Biophys. Res. Commun. 358: 1071-1075 (2007)

Takekuma Y., Kakiuchi H., Yamazaki K., Miyauchi S., Kikukawa, T., Kamo N., Ganapathy V., Sugawara M., Difference between pharmacokinetics of mycophenolic acid (MPA) in rats and that in humans is caused by different affinities of MRP2 to a glucuronized form., J. Pharm. Pharm. Sci. 10: 71-85 (2007)

Nara, T., Kouyama, T., Kurata, Y., Kikukawa, T., Miyauchi, S., Kamo, N., Anti-parallel membrane topology of a homo-dimeric multidrug transporter, EmrE. J. Biochem. 142: 621-625 (2007)

Roy, S., Kikukawa, T., Sharma, P., Kamo, N., All-optical switching in pharaonis phoborhodopsin protein molecules, IEEE Trans. Nanobioscience, 5, 178-187 (2006)

Kikukawa, T., Nara, T., Araiso, T., Miyauchi, S., Kamo, N., Two-component bacterial multidrug transporter, EbrAB: Mutations making each component solely functional, Biochim. Biophys. Acta., 1758, 673-679 (2006)

Kamo, N., Hashiba, T., Kikukawa, T., Araiso, T., Ihara, K., Nara, T., A light-driven proton pump from Haloterrigena turkmenica: functional expression in Escherichia coli membrane and coupling with a H+ co-transporter, Biochem. Biophys. Res. Commun., 341, 285-290 (2006)

Sato, M., Kubo, M., Aizawa, T., Kamo, N., Kikukawa, T., Nitta, K., Demura, M., Role of Putative Anion-Binding Sites in Cytoplasmic and Extracellular Channels of Natronomonas pharaonis Halorhodopsin, Biochemistry, 44, 4775-4784 (2005)

Sato, M., Kikukawa, T., Araiso, T., Okita, H., Shimono, K., Kamo, N., Demura, M., Nitta, K., Roles of Ser130 and Thr126 in Chloride Binding and Photocycle of pharaonis Halorhodopsin, J. Biochem., 134, 151-158 (2003)

Sato, M., Kikukawa, T., Araiso, T., Okita, H., Shimono, K., Kamo, N., Demura, M and Nitta, K., Ser-130 of Natronobacterium pharaonis halorhodopsin is important for the chloride binding, Biophys. chem. 104, 209-216 (2003)

Kikukawa, T., Araiso, T., Changes in Lipid Mobility Associated with Alamethicin Incorporation into Membranes, Arch. Biochem. Biophys., 405, 214-222 (2002)

Yoshioka, M., Kikukawa, T., Ohashi, S., Araiso, T., Yano, S., Tamura, M., Effects of anxiolytics on hemodynamic responses to acute microgravity environment, Biol. Sci. Space., 14, 190-191 (2000)

Nakamura, T., Akutagawa, T., Hasegawa, T., Kikukawa, T., Araiso, T., Higuchi, M., Hiratani, K., Polymerization of pyrrole in microgravity, Synthetic Metals, 101, 78-79 (1999)

Takao, K., Kikukawa, T., Araiso, T., Kamo, N., Azide Accelerates the Decay of M-intermediate of Pharaonis Phoborodopsin, Biophys. Chem., 73, 145-153 (1998)

Kikukawa, T., Araiso, T., Shimozawa, T., Mukasa, K., Kamo, N., Restricted Motion of Photoexcited Bacteriorhodopsin in Purple Membrane Containing Ethanol, Biophys. J., 73, 357-366 (1997)

Kikukawa, T., Araiso, T., Mukasa, K., Shimozawa, T., Kamo, N., Culture Temperature Affects the Molecular Motion of Bacteriorhodopsin within the Purple Membrane, Chem. Pharm. Bull., 44, 473-476 (1996)

Kikukawa, T., Araiso, T., Mukasa, K., Shimozawa, T., Kamo, N., The Molecular Motion of Bacteriorhodopsin Mutant D96N in the Purple Membrane, FEBS Lett., 377, 502-504 (1995)

菊川峰志, プロテオロドプシン, 「光と生命の事典」, pp. 58-59, ISBN: 978-4-254-17161-7, 朝倉書店 (2016)

Kikukawa, T., Kamo, N., Demura, M., Photochemistry of Halorhodopsin, In Optogenetics - Light-Sensing Proteins and Their Applications (Kandori, H., Yawo, H., Koizumi, A., Eds.), pp 47-62, ISBN: 978-4-431-55515-5, Springer (2015).

出村誠, 菊川峰志, 加茂直樹, ハロロドプシンの分子構造と機能解析, 「オプトジェネティクス－光工学と遺伝学による行動制御技術の最前線－」, pp. 24-33, エヌ・ティー・エス (2013)

Kikukawa, T., Tamogami, J., Shimono, K., Demura, M., Nara, T., Kamo, N. (2012). Photo-induced Proton Transfers of Microbial Rhodopsins, Molecular Photochemistry - Various Aspects, Dr. Satyen Saha (Ed.), ISBN: 978-953-51-0446-9, InTech

田母神淳, 菊川峰志, SnO2透明電極を用いた光受容タンパク質のプロトン移動解析, 生物物理 51: 42-43 (2011)

菊川峰志，奈良敏文，ヘテロダイマー型SMR：EbrABの膜内トポロジーの決定とモノマー単独での機能発現，生物物理 47: 264-267 (2007)

菊川峰志, 「微生物ロドプシンのホモ多量体形成の機能的意義」, 東京大学物性研究所ワークショップ「レチナールタンパク質の光機能発現の物理と化学」（2019年9月6日, 柏市）

Kikukawa, T., Cyanobacterial rhodopsin having TSD motif, 8th Asia and Oceania Conference on Photobiology (Nov. 15, 2017, Seoul, Korea)

Kikukawa, T., Kamo, N., Demura, M.,  Light-induced conformational change of inward Cl^- pump halorhodopsin, 13th International Conference on Flow Dynamics (Oct. 2016, Sendai, Japan)

菊川峰志,「時間分解吸収分光で膜蛋白質の反応中間体を捕らえる」，第10回日本蛋白質科学会年会（2010年6月, 札幌）

Kikukawa, T., Kubo, M., Miyauchi, S., Kamo, N., Demura, M., Important amino acid residues for function of halorhodopsin from Natronomonas pharaonis, a light-driven Cl- pump, 4th Asia Oceania Conference on Photobiology (Nov. 2008, Varanasi, India)

Kikukawa, T., Abe, T., Nakao, Y., Kamo, N., On the sensory rhodopsins in Halobacteria, extremely halophilic archaea., 15th Anniversary meeting for Korean society of photoscience (Joint meeting with 2008 Korea-Japan symposium on frontier photoscience)(Sep. 2008, Jeju, Korea)

Tamogami, J., Kikukawa, T., Miyauchi, S., Kamo, N., Analysis of photo-induced proton uptake/release by bacteriorhodopsin and proteorhodopsin using a SnO2 transparent electrode. 13th International Conference on Retinal Proteins (Jun. 2008, Barcelona, Spain)

Kamo, N., Sudo, Y., Hasegawa, C., Miyauchi, S., Kikukawa, T., Importance of specific hydrogen bonds of archaeal rhodopsins for the binding with transducer protein: what happens when the transducer protein binds to an engineered pharaonis halorhodopsin. 12th International Conference on Retinal Proteins (Jun. 2006, Awaji, Japan)

Murabe, K., Kato, T., Tsukamoto, T., Aizawa, T., Demura, M., Kikukawa, T., Time-resolved detection of Na+ uptake and release reactions of Na+-pumping rhodopsin, 9th Asia and Oceania Conference on Photobiology (Sep. 2019, Qingdao, China)

Kikukawa, T., Sasaki, S., Nishiya, K., Tsukamoto, T., Aizawa, T., Demura, M., Tamogami, J., Replacements of “H+ donor” residues in the light-driven H+-pump rhodopsins, 17th International Congress on Photobiology (Aug. 2019, Barcelona, Spain)

Kikukawa, T., Iizuka, A., Kajimoto, K., Fujisawa, T., Tsukamoto, T., Aizawa, T., Jung, K.H., Kamo, N., Unno, M., Demura, M., Functional importance of trimer formation of light-driven H+ pump Gloeobacter rhodopsin, 18th International Conference on Retinal Proteins (Sep. 2018, Hockley Valley Resort, Canada)

Kurihara, M., Hashimoto, M., Yoshizawa, S., Kojima, K., Tsukamoto, T., Kikukawa, T., Sudo, Y., An elevated pKa of the protonated retinal Schiff base counterion Asp as a key factor for efficient ion transport in Na+ pumping rhodopsins, 18th International Conference on Retinal Proteins (Sep. 2018, Hockley Valley Resort, Canada)

Tsukamoto, T., Kikuchi, C., Suzuki, H., Aizawa, T., Kikukawa, T., Demura, M., Anion concentration dependency on the photocycle of PsuACR1: Implications for the impairment of its fast channel closing, 18th International Conference on Retinal Proteins (Sep. 2018, Hockley Valley Resort, Canada)

Yoshino, M., Takahashi, H., Yokoyama, Y., Takagi, T., Amii, H., Kanamori, T., Kikukawa, T., Sonoyama, M., Thermal Stability of the Hexagonal Lattice Packing Structure of Bacteriorhodopsin in Partially Fluorinated Phospholipid Bilayers, 59th International Conference on the Bioscience of Lipids (Sep. 2018, Helsinki, Finland)

Kikukawa, T., Hasemi, T., Aizawa, T., Kamo, N., Demura, M., Photochemistry of cyanobacterial chloride ion-pumping rhodopsin, 19th International Union of Pure and Applied Biophysics (IUPAB) and 11th European Biophysical Societies' Association (EBSA) Congress (Jul. 19, 2017, Edinburgh, UK)

Tamaki, H., Saito, Y., Egawa, A., Kikukawa, T., Fujiwara, T., Demura, M., Solid-state NMR analysis of sodium ion pump rhodopsin and its Na+-binding, 17th International Conference on Retinal Proteins (Oct. 2016, Potsdam, Germany)

Tamogami, J., Kikukawa, T., Nara, T., Demura, M., Muneyuki, E., Kamo, N., Inversion of sequence and direction of the proton transfer in proteorhodopsin at high pH, The 2015 International Chemical Congress of Pacific Basin Societies (Dec. 19, 2015, Honolulu, USA)

Shibasaki, K., Shigemura, H., Kikukawa, T., Kamiya, M., Aizawa, T., Kamo, N., Demura, M., The Importance of Thr218 for Cl--Pumping Photocycle of Natronomonas pharaonis Halorhodopsin, 16th International Conference on Retinal Proteins (Nov. 2014, Nagahama, Japan)

Hasemi, T., Kikukawa, T., Kamiya, M., Aizawa, T., Jung, KH., Kamo, N., Demura, M., Proton Transfer Reactions of Anabaena Sensory Rhodopsin, 16th International Conference on Retinal Proteins (Nov. 2014, Nagahama, Japan)

Nakamura, S., Kikukawa, T., Kamiya, M., Aizawa, T., Hahn, MW., Kamo, N., Demura, M., Photochemistry of the H+-Pumping Rhodopsin from Freshwater Actinobacteria, 16th International Conference on Retinal Proteins (Nov. 2014, Nagahama, Japan)

Kikukawa, T., Kokubo, A., Tsukamoto, T., Ihara, K., Kamo, N., Demura, N., When does halorhodopsin capture and release Cl- during photocycle? Examination by spectrum changes of an intrinsic voltage-sensitive dye, bacterioruberin, 15th International Conference on Retinal Proteins (Oct. 2012, Ascona, Switzerland)

Reissig, L., Iwata, T., Kikukawa, T., Demura, M., Kamo, N., Kandori, H., Sudo, Y., The effect of halide binding on the hydrogen bonding network in the active site of Salinibacter sensory rhodopsin I, 15th International Conference on Retinal Proteins (Oct. 2012, Ascona, Switzerland)

Tamogami, J., Kikukawa, T., Nara, T., Shimono, K., Demura, M., Kamo, N., The Proton Release in Proteorhodopsin at Low pH: Decrease in pKa of Asp227 in the excited state, 15th International Conference on Retinal Proteins (Oct. 2012, Ascona, Switzerland)

Tsukamoto T, Kikukawa T, Kurata T, Jung KH, Kamo N, Demura M., Homo-trimeric structure of Gloeobacter rhodopsin is regulated by the protonation state of Asp121, a counterion of the protonated Schiff base, 15th International Conference on Retinal Proteins (Oct. 2012, Ascona, Switzerland)

Kikukawa, T., Tamogami, J., Shimono, K., Kimura-Someya, T., Shirouzu, M., Miyauchi, S., Yokoyama, S., Kim, S.Y., Jung, K.H., Kamo, N., Photochemistry of ARII, Acetabularia Rhodopsin II from Marine Plant, 14th International Conference on Retinal Proteins (Aug. 2010, Santa Cruz, USA)

Tsukamoto, T., Sasaki, T., Fujimoto, K.J., Kikukawa, T., Kamiya, M., Aizawa, T., Kawano, K., Demura, M., Trimer formation of N. pharaonis halorhodopsin is stabilized by the intermolecular interaction among Phe150 residues and leads to functional modulation in detergent solution, 14th International Conference on Retinal Proteins (Aug. 2010, Santa Cruz, USA)

Kikukawa, T., Miyauchi, S., Ichio, H., Kitagawa, T., Kamiya, M., Aizawa, T., Kawano, K., Demura, M., Kamo, N., Role of the aspartic acid residue adjacent to the retinylidene Schiff base in the light-driven Cl- pump halorhodopsin, 15th International Congress on Photobiology (Jun. 2009, Dusseldorf, Germany)

Tamogami, J., Ikeda, T., Takemura, A., Kikukawa, T., Demura, M., Kamo, N., The photochemical reaction cycle and photo-induced proton transfer of phoborhodopsin from Halobacterium salinarum (sensory rhodopsin II) reconstituted into phospholipids, 15th International Congress on Photobiology (Jun. 2009, Dusseldorf, Germany)

Tamogami, J., Kikukawa, T., Miyauchi, S., Muneyuki, E., Kamo, N., Analysis of the photo-induced proton movement in bacteriorhodopsin and proteorhodopsin, 4th Asia Oceania Conference on Photobiology (Nov. 2008, Varanasi, India)

Kubo, M., Kikukawa, T., Miyauchi, S., Kamiya, M., Aizawa, T., Kawano, K., Kamo, N., Demura, M., Conformational change of Arg123 in chloride uptake of light-driven chloride pump Halorhodopsin, 17th Meeting of Methods in Protein Structure Analysis, (Aug. 2008, Sapporo, Japan)

Sonoyama, M., Kikukawa, T., Yokoyama, Y., Demura, M., Kamo, N., Mitaku, S., Effect of molecular assembly on photo-intermediates of BR reconstituted into dimyristoylphosphatidyl choline vesicles, 13th International Conference on Retinal Proteins (Jun. 2008, Barcelona, Spain)

Kubo, M., Kikukawa, T., Miyauchi, S., Kamiya, M., Aizawa, T., Kawano, K., Kamo, N., Demura, M., Role of Arg123 in light-driven anion pump mechanisms of N. pharaonis Halorhodopsin, NpHR, 13th International Conference on Retinal Proteins (Jun. 2008, Barcelona, Spain)

Kamo, N., Miyauchi, S., Kikukawa, T., Shigemura, H., Saito, Y., Hayashi, S., Kubo, M., Kitagawa, T., Demura, M., Important amino acid residues on functioning in halorhodopsin from Natronomonas pharaonis, NpHR, 13th International Conference on Retinal Proteins (Jun. 2008, Barcelona, Spain)

Tsukamoto, T., Sasaki, T., Kikukawa, T., Kamiya, M, Aizawa, T., Kawano, K., Kamo, N., Demura, M., Trimer assembly of Natromonas pharaonis halorhodopsin, NpHR in lipid bilayer and detergent. 13th International Conference on Retinal Proteins (Jun. 2008, Barcelona, Spain)

Kikukawa, T., Saha, C.K., Balashov, S.P., Imasheva, E.S., Zaslavsky, D., Gennis, R.B., Abe, T., Kamo, N., The Lifetimes of Pharaonis Phoborhodopsin Signaling States Depend on the Rates of Proton Transfers: Effects of Hydrostatic Pressure and Stopped Flow Experiments, Gordon Conference on “photosensory receptors and signal transduction” (Jan. 2008, Ventura, USA)

Hasegawa, C., Kikukawa, T., Kubo, M., Demura, M., Miyauchi, S., Kamo, N., The influence of the complex formation with the transducer protein on the photochemical reaction cycle of pharaonis halorhodopsin, 12th International Conference on Retinal Proteins (Jun. 2006, Awaji, Japan)

Saito, Y., Kubo, M., Sasaki, T., Kikukawa, T., Miyauchi, S., Aizawa, T., Kawano, K., Kamo, N., Demura, M., Effects of EC-channel residues, E234 and R176, of pharaonis halorhodopsin on structural stability and functions, 12th International Conference on Retinal Proteins (Jun. 2006, Awaji, Japan)

Kubo, M., Sasaki, T., Saito, Y., Kikukawa, T., Kamo, N., Aizawa, T., Kawano, K., Demura, M., Inversion of spectral shifts of pharaonis halorhodopsin in anion titration caused by changing pH, 12th International Conference on Retinal Proteins (Jun. 2006, Awaji, Japan)

Demura, M., Sato, M., Kubo, M., Aizawa, T., Kamo, N., Kikukawa, T., Nitta, K., Kawano, K., Halorhodopsin: key residues for anion binding and transport of membrane protein, The 2005 International Chemical Congress of Pacific Basin Societies (Dec. 2005, Honolulu, USA)

Sato, M., Kikukawa, T., Araiso, T., Okita, H., Shimono,K., Kamo, N., Demura, M., Nitta, K., Effect of S130A mutation of pharaonis halorhodopsin on the chloride binding and their photocycle. 10th International Conference of Retinal Proteins (Aug. 2002, Seattle, USA)

Sato, M., Kikukawa, T., Araiso, T., Okita, H., Shimono,K., Kamo, N., Demura, M., Nitta, K., The effect of S130A mutant of pharaonis halorhodopsin on ability of chloride binding and photocycle, 1st Asian Conference on Photobiology (Jun. 2002, Awaji, Japan)

Sunayashiki-Kusuzaki, K., Kikukawa, T., Araiso, T., Potassium Induces Bilayer-Mobility in Synaptosomal Membrane of Squid Brains, 29th Annual Meeting Society for Neuroscience (Oct. 1999, Miami, USA)

Hayakawa, E., Fujimoto, Y., Kikukawa, T., Mukasa, K., Araiso, T., The Importance of Small Polar Head at Cholesterol Molecule for L?-HII Transition of Lipid Membrane, 3rd Congress of the International Society for the Study of Fatty Acids and Lipids (Lyon, France, Jun. 1998, Lyon, France)

Kikukawa, T., Araiso, T., Mukasa, K., Shimozawa, T., Kamo, N., The Motion of Bacteriorhodopsin Induced by Ethanol in the Purple Membrane, Nagoya University International Symposium "Bacterial Rhodopsins" (Nov. 1995, Nagoya, Japan)

Araiso, T., Kikukawa, T. Blood Flow in Frog Capillary Vesseles under Microgravity, 9th International Congress of Biorheology and 2nd International Conference of Clinical Hemorheology (Jul. 1995, Big Sky, USA)

Araiso, T., Kikukawa, T., Effect of Microgravity upon Blood Flow Rate in Capillary Vessels, Proceedings of the 10th Space Utilization Symposium (1993, Sapporo, Japan)