Hirozo Oh‐oka

1.6k total citations
65 papers, 1.2k citations indexed

About

Hirozo Oh‐oka is a scholar working on Molecular Biology, Renewable Energy, Sustainability and the Environment and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Hirozo Oh‐oka has authored 65 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 63 papers in Molecular Biology, 28 papers in Renewable Energy, Sustainability and the Environment and 18 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Hirozo Oh‐oka's work include Photosynthetic Processes and Mechanisms (57 papers), Spectroscopy and Quantum Chemical Studies (18 papers) and Algal biology and biofuel production (16 papers). Hirozo Oh‐oka is often cited by papers focused on Photosynthetic Processes and Mechanisms (57 papers), Spectroscopy and Quantum Chemical Studies (18 papers) and Algal biology and biofuel production (16 papers). Hirozo Oh‐oka collaborates with scholars based in Japan, United States and Netherlands. Hirozo Oh‐oka's co-authors include Shigeru Itoh, Hiroshi Matsubara, Masayo Iwaki, Hitoshi Tamiaki, Jiro Harada, Yasuhiro Takahashi, Shinichi Takaichi, Yusuke Tsukatani, Tadashi Mizoguchi and Masami Kobayashi and has published in prestigious journals such as Journal of Biological Chemistry, The Journal of Chemical Physics and SHILAP Revista de lepidopterología.

In The Last Decade

Hirozo Oh‐oka

65 papers receiving 1.2k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Hirozo Oh‐oka Japan	21	1.1k	405	296	247	159	65	1.2k
Tomohiko Kuwabara Japan	19	1.2k 1.1×	308 0.8×	247 0.8×	376 1.5×	122 0.8×	42	1.5k
Yusuke Tsukatani Japan	20	826 0.7×	303 0.7×	183 0.6×	147 0.6×	263 1.7×	52	991
Yukihiro Kimura Japan	26	1.3k 1.2×	227 0.6×	450 1.5×	538 2.2×	232 1.5×	82	1.6k
Edward J. Bylina United States	18	1.2k 1.1×	308 0.8×	388 1.3×	296 1.2×	169 1.1×	28	1.3k
Guangye Han China	23	1.4k 1.2×	576 1.4×	331 1.1×	434 1.8×	164 1.0×	57	1.8k
Daniel P. Canniffe United Kingdom	21	1.1k 1.0×	483 1.2×	143 0.5×	273 1.1×	257 1.6×	36	1.4k
Francesco Francia Italy	24	1.3k 1.2×	235 0.6×	408 1.4×	324 1.3×	81 0.5×	60	1.7k
Bernard Lagoutte France	22	1.2k 1.0×	390 1.0×	194 0.7×	361 1.5×	40 0.3×	41	1.3k
Péter Maróti Hungary	22	1.3k 1.2×	226 0.6×	547 1.8×	574 2.3×	59 0.4×	79	1.5k
Isao Enami Japan	28	2.0k 1.8×	716 1.8×	287 1.0×	483 2.0×	103 0.6×	70	2.2k

Countries citing papers authored by Hirozo Oh‐oka

Since Specialization

Citations

This map shows the geographic impact of Hirozo Oh‐oka's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hirozo Oh‐oka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hirozo Oh‐oka more than expected).

Fields of papers citing papers by Hirozo Oh‐oka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hirozo Oh‐oka. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hirozo Oh‐oka. The network helps show where Hirozo Oh‐oka may publish in the future.

Co-authorship network of co-authors of Hirozo Oh‐oka

This figure shows the co-authorship network connecting the top 25 collaborators of Hirozo Oh‐oka. A scholar is included among the top collaborators of Hirozo Oh‐oka based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Hirozo Oh‐oka. Hirozo Oh‐oka is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Yamamoto, Tomoya, Risa Mutoh, Hideaki Tanaka, et al.. (2023). Soluble domains of cytochrome c-556 and Rieske iron–sulfur protein from Chlorobaculum tepidum: Crystal structures and interaction analysis. SHILAP Revista de lepidopterología. 5. 100101–100101. 3 indexed citations

Kondô, Torû, et al.. (2018). Light-Induced Electron Spin-Polarized (ESP) EPR Signal of the P800⁺ Menaquinone^– Radical Pair State in Oriented Membranes of Heliobacterium modesticaldum: Role/Location of Menaquinone in the Homodimeric Type I Reaction Center. The Journal of Physical Chemistry B. 122(9). 2536–2543. 11 indexed citations

Kondô, Torû, et al.. (2015). Menaquinone as the Secondary Electron Acceptor in the Type I Homodimeric Photosynthetic Reaction Center of Heliobacterium modesticaldum. The Journal of Physical Chemistry B. 119(27). 8480–8489. 19 indexed citations

Unno, Masaki, et al.. (2013). Structure analysis and characterization of the cytochrome c-554 from thermophilic green sulfur photosynthetic bacterium Chlorobaculum tepidum. Photosynthesis Research. 118(3). 249–258. 5 indexed citations

Kim, Kwang Jin, et al.. (2011). A heterogeneous tag-attachment to the homodimeric type 1 photosynthetic reaction center core protein in the green sulfur bacterium Chlorobaculum tepidum. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1807(7). 803–812. 16 indexed citations

Ohashi, Shunsuke, Naoki Okada, Shingo Itoh, et al.. (2010). An overview on chlorophylls and quinones in the photosystem I-type reaction centers. Photosynthesis Research. 104(2-3). 305–319. 25 indexed citations

Hirano, Yu, et al.. (2010). Crystal Structure of the Electron Carrier Domain of the Reaction Center Cytochrome cz Subunit from Green Photosynthetic Bacterium Chlorobium tepidum. Journal of Molecular Biology. 397(5). 1175–1187. 14 indexed citations

Tsukatani, Yusuke, et al.. (2008). Parallel electron donation pathways to cytochrome cz in the type I homodimeric photosynthetic reaction center complex of Chlorobium tepidum. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1777(9). 1211–1217. 18 indexed citations

Harada, Jiro, et al.. (2008). Accumulation of chlorophyllous pigments esterified with the geranylgeranyl group and photosynthetic competence in the CT2256-deleted mutant of the green sulfur bacterium Chlorobium tepidum. Photochemical & Photobiological Sciences. 7(10). 1179–1187. 26 indexed citations

10.

Saga, Yoshitaka, et al.. (2008). 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. Photochemical & Photobiological Sciences. 7(10). 1210–1215. 10 indexed citations

11.

Oh‐oka, Hirozo. (2007). Type 1 Reaction Center of Photosynthetic Heliobacteria†. Photochemistry and Photobiology. 83(1). 177–186. 53 indexed citations

12.

Harada, Jiro, et al.. (2007). Composition and localization of bacteriochlorophyll a intermediates in the purple photosynthetic bacterium Rhodopseudomonas sp. Rits. Photosynthesis Research. 95(2-3). 213–221. 20 indexed citations

13.

Wada, Kei, Hitomi Yamaguchi, Jiro Harada, et al.. (2006). Crystal Structures of BchU, a Methyltransferase Involved in Bacteriochlorophyll c Biosynthesis, and its Complex with S-adenosylhomocysteine: Implications for Reaction Mechanism. Journal of Molecular Biology. 360(4). 839–849. 28 indexed citations

14.

Tsukatani, Yusuke, Ryo Miyamoto, Shigeru Itoh, & Hirozo Oh‐oka. (2006). Soluble cytochrome c‐554, CycA, is not essential for photosynthetic electron transfer in Chlorobium tepidum. FEBS Letters. 580(9). 2191–2194. 10 indexed citations

15.

Saga, Yoshitaka, Hirozo Oh‐oka, Takashi Hayashi, & Hitoshi Tamiaki. (2003). Presence of Exclusively Bacteriochlorophyll-c Containing Substrain in the Culture of Green Sulfur Photosynthetic Bacterium Chlorobium vibrioforme Strain NCIB 8327 Producing Bacteriochlorophyll-d. Analytical Sciences. 19(12). 1575–1579. 26 indexed citations

16.

Takaichi, Shinichi, et al.. (2002). Diaponeurosporene glycoside fatty acid esters from two new alkaliphilic heliobacteria, Heliorestis. Plant and Cell Physiology. 43. 29. 1 indexed citations

17.

Takaichi, Shinichi, Hirozo Oh‐oka, Takashi Maoka, Deborah O. Jung, & Michael T. Madigan. (2002). Novel carotenoid glucoside esters from alkaliphilic heliobacteria. Archives of Microbiology. 179(2). 95–100. 21 indexed citations

18.

Oh‐oka, Hirozo, Masayo Iwaki, & Shigeru Itoh. (2002). Electron donation from membrane-bound cytochrome c to the photosynthetic reaction center in whole cells and isolated membranes of Heliobacterium gestii. Photosynthesis Research. 71(1-2). 137–147. 15 indexed citations

19.

Saeki, Kazuhiko, et al.. (2001). Primary Structure and Phylogenetic Analysis of the Coat Protein of a Toyama Isolate of Tobacco Necrosis Virus. Bioscience Biotechnology and Biochemistry. 65(3). 719–724. 7 indexed citations

20.

Oh‐oka, Hirozo, et al.. (1995). Two molecules of cytochrome c function as the electron donors to P840 in the reaction center complex isolated from a green sulfur bacterium, Chlorobium tepidum. FEBS Letters. 365(1). 30–34. 52 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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