Kazuma Toida, Wakana Kushida, Hiroki Yamamoto, Kyoka Yamamoto, Kaichi Ishii, Kazuma Uesaka, Robert A. Kanaly, Shinsuke Kutsuna, Kunio Ihara, Yuichi Fujita & Hideo Iwasaki (2023)
"The GGDEF protein Dgc2 suppresses both motility and biofilm formation in the filamentous cyanobacterium Leptolyngbya boryana" Microbiology Spectrum, 11(5). DOI: https://doi.org/10.1128/spectrum.04837-22

Hiroki Yamamoto, Yuki Fukasawa, Yu Shoji, Shumpei Hisamoto, Tomohiro Kikuchi, Atsuko Takamatsu & Hideo Iwasaki (2021)
"Scattered migrating colony formation in the filamentous cyanobacterium, Pseudanabaena sp. NIES-4403"
BMC Microbiology 21, Article number: 227 Doi: https://doi.org/10.1186/s12866-021-02183-5

Naohiro Kon, Wang Hisin-Tzu, Kato Yoshiaki Kato, Kyohei Uemoto, Naohiro Kawamoto, Koji Kawasaki, Ryosuke Enoki, Gen Kurosawa, Tatsuto Nakane, Yasunori Sugiyama, Hideaki Tagashira, Motomu Endo, Hideo Iwasaki, Takahiro Iwamoto, Kazuhiko Kume and Yoshitaka Fukada (2021)
"Na+/Ca2+ exchanger mediates cold Ca2+ signaling conserved for temperature-compensated circadian rhythms" Science Advances 7:18 Doi: https://doi.org/10.1126/sciadv.abe8132

Naohiro Kawamoto, Hiroshi Ito, Isao T. Tokuda, and Hideo Iwasaki (2020)
"Damped circadian oscillation in the absence of KaiA in Synechococcus"
Nature Communications, 11, 2242. Doi: 10.1038/s41467-020-16087-x

Koji Kawasaki and Hideo Iwasaki (2020)
"Involvement of glycogen metabolism in circadian control of UV resistance in cyanobacteria"
PLOS Genetics 16:11 e1009230 Doi: https://doi.org/10.1371/journal.pgen.1009230

Shiryu Kirie, Hideo Iwasaki, Koji Noshita, Hiroyoshi Iwata (2020)
"A theoretical morphological model for quantitative description of the three-dimensional floral morphology in water lily (Nymphaea)"
PLOS ONE 15(10) e0239781-e0239781 Doi: https://doi.org/10.1371/journal.pone.0239781

Hideo Iwasaki (2020)
"Culturing <Paper>cut"
Performance Research 25(3) 72-73 2020年4月2日

Shumpei Hisamoto, Natsumi Hosaka, Yuka Matsunami, Hideo Iwasaki (2020)
"Route reassessment by transporter ants improves speed and directional accuracy of cooperative transport in Formica japonica"
Journal of Ethology 38(1) 107-116 Doi: https://doi.org/10.1007/s10164-019-00626-1

Shumpei Hisamoto (2018)
"Individual variation and positive feedback initiate aggregation in Lasius japonicus"
J. Ethol. 37: 31-39. 

Yoriko Murayama, Hiroshi Koric, Chiaki Oshima, Takao Kondo, Hideo Iwasaki, and Hiroshi Ito (2017)
“Low temperature nullifies the circadian clock in cyanobacteria through Hopf bifurcation”
Proc. Natl. Acad. Sci. USA, 2017 Apr 19. doi: 10.1073/pnas.1620378114

Ishihara J, Tachikawa M, H. Iwasaki, Mochizuki A. (2015)
"Mathematical study of pattern formation accompanied by heterocyst differentiation in multicellular cyanobacterium." 
J. Theor. Biol. 21;371:9-23

Takano S, Tomita J, Sonoike K, H. Iwasaki* (2015)
"The initiation of nocturnal dormancy in Synechococcus as an active process."
BMC Biol. 2015 Jun 10;13:36. doi: 10.1186/s12915-015-0144-2.

Umetani M, Hosokawa N, Kitayama Y, H. Iwasaki* (2014)
"Hypersensitive photic responses and intact genome-wide transcriptional control without the KaiC phosphorylation cycle in the Synechococcus circadian system."
J. Bacteriol.2014 Feb;196(3):548-55. doi: 10.1128/JB.00892-13. Epub 2013 Nov 15.

Xu Y, Weyman PD, Umetani M, Xiong J, Qin X, Xu Q, H. Iwasaki, Johnson CH. (2013)
"Circadian yin-yang regulation and its manipulation to globally reprogram gene expression."
Curr Biol..2013 Dec 2;23(23):2365-74. doi: 10.1016/j.cub.2013.10.011. Epub 2013 Nov 7.

N. Hosokawa, H. Kushige and H. Iwasaki (2013)
"Attenuation of the posttranslational oscillator via transcription?translation feedback enhances circadian-phase shifts in Synechococcus"
Proc. Natl. Acad. Sci. USA, in press (Eearly Edition, August 12)

Kushige, H., Kugenuma, H., Matsuoka, M., Ehira, S., Ohmori, M., Iwasaki, H.* (2013)
"Genome-wide and heterocyst-specific circadian gene expression in the filamentous cyanobacterium, Anabaena sp. PCC 7120"
J. Bacteriol. 195: 1276-1284

M. Hanaoka*, N. Takai, N. Hosokawa, M. Fujiwara, Y. Akimoto, N. Kobori, H. Iwasaki, T. Kondo, K. Tanaka (2012)
"RpaB, another response regulator operating circadian clock-dependent transcriptional regulation in Synechococcus elongatus PCC 7942"
J. Biol. Chem., 287: 26321-26327

N. Hosokawa, T. Hatakeyama, T. Kojima, Y. Kikuchi, H. Ito and H. Iwasaki* (2011)
"Circadian transcriptional regulation by the posttranslational oscillator without de novo clock gene expression in Synechococcus"
Proc. Natl. Acad. Sci. USA, 108: 15396-15401

H. Asai, S. Iwamori, K. Kawai, S. Ehira, J. Ishihara, K. Aihara, S. Shoji, H. Iwasaki* (2009)
"Cyanobacterial cell lineage analysis of the spatiotemporal hetR expression profile during heterocyst pattern formation in Anabaena sp. PCC 7120"　
PLoS ONE, 4(10): e7371 (October 12, 2009)

H. Ito, M. Mutsuda, Y. Murayama, J. Tomita, N. Hosokawa, K. Terauchi, C. Sugita, M. Sugita, T. Kondo, H. Iwasaki* (2009)
"Cyanobacterial daily life with Kai-based circadian and diurnal genome-wide transcriptional control in Synechococcus elongatus"
Proc. Natl. Acad. Sci. USA, 106:14168-14173 (June 30, 2009)

H. Tozaki, T. Kobe, K. Aihara, H. Iwasaki* (2008)
"An attempt to reveal a role of a transcription/translation feedback loop in the cyanobacterial KaiC protein-based circadian system by using a semi-synthetic method"
Int. J. Bioinform. Res. Appl. , 4: 435-444

S.R. Mackey, JS. Cho, Y. Kitayama, H. Iwasaki, G. Dong, S.S. Golden (2008)
"Proteins found in a CikA-interaction assay link the circadian clock, metabolism, and cell division in Synechococcus elongatus"
J. Bacteriol., 190: 3738-3746

A. Seki, M. Hanaoka, Y. Akimoto, S. Masuda, H. Iwasaki, K. Tanaka (2007)
"Induction of a group 2 sigma factor, RpoD3, by high light and the underlying mechanism in Synechococcus elongatus PCC 7942"
J. Biol. Chem., 282: 36887-36894

F. Miyoshi, Y. Nakayama , K. Kaizu, H. Iwasaki, M. Tomita (2007)
"A mathematical model for the Kai-protein-based chemical oscillator and clock gene expression rhythms in cyanobacteria "
J. Biol. Rhythms, 22: 69-80

N. Takai, M. Nakajima, T. Oyama, R. Kito, C. Sugita, M. Sugita, T. Kondo, H. Iwasaki* (2006)
"A KaiC-associating SasA-RpaA two-component regulatory system as a major circadian timing mediator in cyanobacteria "
Proc Natl Acad Sci USA, 103: 12109-12114

H. Kageyama, T. Nishiwaki, M. Nakajima, H. Iwasaki, T. Oyama, T. Kondo (2006)
"Cyanobacterial circadian pacemaker: Kai protein complex dynamics in the KaiC phosphorylation cycle in vitro"
Molecular Cell, 23: 161-171

M. Nakajima, K. Imai, H. Ito, T. Nishiwaki, Y. Murayama, H. Iwasaki, T. Oyama, T. Kondo (2005)
"Reconstitution of circadian oscillation of cyanobacterial KaiC phosphorylation in vitro"
Science 308, 5720: 414-415

Tomita J, Nakajima M, Kondo T, Iwasaki H* (2005)
"No transcription-translation feedback in circadian rhythm of KaiC phosphorylation."
Science 307, 5707: 251-254

T. Nishiwaki, Satomi Y, Nakajima M, Lee C, Kiyohara R, Kageyama H, Kitayama Y, Temamoto M, Yamaguchi A, Hijikata A, Go M, Iwasaki H, Takao T, Kondo T. (2004)
"Role of KaiC phosphorylation in the circadian clock system of Synechococcus elongatus PCC 7942."
Proc Natl Acad Sci USA 101:13927-32

Imai K, Nishiwaki T, Kondo T, Iwasaki H* (2004)
"Circadian rhythms in the synthesis and degradation of a master clock protein KaiC in cyanobacteria."
J Biol Chem 279:36534-9

Nakahira Y, Katayama M, Miyashita H, Kutsuna S, Iwasaki H, Oyama T, Kondo T (2004)
"Global gene repression by KaiC as a master process of prokaryotic circadian system."
Proc Natl Acad Sci USA 101: 881-885

Kitayama Y, Iwasaki H, Nishiwaki T, Kondo T (2003)
"KaiB functions as an attenuator of KaiC phosphorylation in the cyanobacterial circadian clock system."
EMBO J. 22:2127-34

Kageyama H, Kondo T, Iwasaki H* (2003)
"Circadian formation of clock protein complexes by KaiA, KaiB, KaiC, and SasA in cyanobacteria."
J Biol Chem. 278:2388-95

Iwasaki H*, Nishiwaki T, Kitayama Y, Nakajima M, Kondo T (2002) *corresponding author
"KaiA-stimulated KaiC phosphorylation in circadian timing loops in cyanobacteria."
Proc Natl Acad Sci USA 99:15788-93

Taniguchi Y, Yamaguchi A, Hijikata A, Iwasaki H, Kamagata K, Ishiura M, Go M, Kondo T (2001)
"Two KaiA-binding domains of cyanobacterial circadian clock protein KaiC."
FEBS lett. 496: 86-90

Iwasaki H, Williams SB, Kitayama Y, Ishiura M, Golden SS, Kondo T (2000)
"A KaiC-interacting sensory histidine kinase, SasA, necessary to sustain robust circadian oscillation in cyanobacteria."
Cell 101: 223-233

S Hirota, K Hayamizu, T Okuno, M Kishi, H Iwasaki, T Kondo, T Hibino, T Takabe, T Kohzuma, O Yamauchi (2000)
"Spectroscopic and electrochemical studies on structural change of plastocyanin and its tyrosine 83 mutants induced by interaction with lysine peptides"
Biochemistry, 39: 6357-6364

Nishiwaki T, Iwasaki H, Ishiura M, Kondo T (2000)
"Nucleotide binding and autophosphorylation of the clock protein KaiC as a circadian timing process of cyanobacteria."
Proc Natl Acad Sci USA 97: 495-499

NJ Cosper, C Stalhandske, H Iwasaki, T Oshima, R Scott, T Iwasaki (1999)
"Structural conservation of the isolated zinc site in archaeal zinc-containing ferredoxins as revealed by X-ray absorption spectroscopic analysis and its evolutionary implications."
J. Biol. Chem.274: 23160-23168

Iwasaki H, Taniguchi Y, Ishiura M, Kondo T (1999)
"Physical interactions among circadian clock proteins, KaiA, KaiB and KaiC, in cyanobacteria."
EMBO J 18: 1137-1145

M Takahashi, H. Iwasaki, T. Niimi, O Yamashita, T Yaginuma (1998)
"Changing profiles of mRNA levels of Cdc2 and a novel Cdc2-related kinase (Bcdrk) in relation to ovarian development and embryonic diapause of Bombyx mori."
Appl. Entomol. Zool. 33: 551-559

Ishiura, M, Kutsuna S, Aoki S, Iwasaki H, Andersson CR, Tanabe A, Golden SS, Johnson CH, Kondo T (1998)
"Expression of a gene cluster kaiABC as a circadian feedback process in cyanobacteria."
Science 281: 1519-1523

H Iwasaki, M Takahashi, T Niimi, O Yamashita, T Yaginuma (1996)
"Cloning of cDNAs encoding Bombyx homologues of Cdc2 and Cdc2-related kinase from eggs."
Insect Mol. Biol.6: 131-141