Takashi Okitsu

1.9k total citations
69 papers, 1.5k citations indexed

About

Takashi Okitsu is a scholar working on Organic Chemistry, Molecular Biology and Cellular and Molecular Neuroscience. According to data from OpenAlex, Takashi Okitsu has authored 69 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Organic Chemistry, 27 papers in Molecular Biology and 18 papers in Cellular and Molecular Neuroscience. Recurrent topics in Takashi Okitsu's work include Photoreceptor and optogenetics research (18 papers), Oxidative Organic Chemistry Reactions (15 papers) and Neuroscience and Neuropharmacology Research (14 papers). Takashi Okitsu is often cited by papers focused on Photoreceptor and optogenetics research (18 papers), Oxidative Organic Chemistry Reactions (15 papers) and Neuroscience and Neuropharmacology Research (14 papers). Takashi Okitsu collaborates with scholars based in Japan, Tanzania and Canada. Takashi Okitsu's co-authors include Akimori Wada, Yasuyuki Kita, Hiromichi Fujioka, Yoshinari Sawama, Izuru Kawamura, Ozora Kubo, Ruichuan Li, Shenlin Wang, Vladimir Ladizhansky and Lichi Shi and has published in prestigious journals such as Journal of the American Chemical Society, Journal of Biological Chemistry and Angewandte Chemie International Edition.

In The Last Decade

Takashi Okitsu

66 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Takashi Okitsu Japan 21 672 453 205 202 162 69 1.5k
Richard E. Brown United States 19 361 0.5× 102 0.2× 122 0.6× 41 0.2× 219 1.4× 65 1.2k
Peter König Germany 15 199 0.3× 523 1.2× 115 0.6× 201 1.0× 149 0.9× 35 1.2k
Serge Crouzy France 24 128 0.2× 804 1.8× 187 0.9× 202 1.0× 24 0.1× 60 1.4k
Hai Won Chang United States 21 481 0.7× 536 1.2× 77 0.4× 224 1.1× 100 0.6× 43 1.3k
Shigeru Negi Japan 18 188 0.3× 874 1.9× 175 0.9× 34 0.2× 55 0.3× 47 1.4k
Weili Cui China 17 131 0.2× 361 0.8× 116 0.6× 60 0.3× 126 0.8× 52 1.1k
Han Sun Germany 25 334 0.5× 777 1.7× 659 3.2× 207 1.0× 240 1.5× 88 1.9k
Tomohiro Kimura Japan 21 148 0.2× 459 1.0× 135 0.7× 142 0.7× 363 2.2× 81 1.2k
Zheng Shi United States 23 310 0.5× 931 2.1× 53 0.3× 162 0.8× 65 0.4× 53 1.8k
Sivakumar Sekharan United States 19 146 0.2× 463 1.0× 109 0.5× 495 2.5× 53 0.3× 36 1.1k

Countries citing papers authored by Takashi Okitsu

Since Specialization
Citations

This map shows the geographic impact of Takashi Okitsu'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 Takashi Okitsu with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Takashi Okitsu more than expected).

Fields of papers citing papers by Takashi Okitsu

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Takashi Okitsu. 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 Takashi Okitsu. The network helps show where Takashi Okitsu may publish in the future.

Co-authorship network of co-authors of Takashi Okitsu

This figure shows the co-authorship network connecting the top 25 collaborators of Takashi Okitsu. A scholar is included among the top collaborators of Takashi Okitsu 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 Takashi Okitsu. Takashi Okitsu is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Okitsu, Takashi, et al.. (2023). Solid-state NMR for the characterization of retinal chromophore and Schiff base in TAT rhodopsin embedded in membranes under weakly acidic conditions. Biophysics and Physicobiology. 20(Supplemental). n/a–n/a. 5 indexed citations
2.
Kishida, Takushi, Takahiko Hariyama, Takashi Okitsu, et al.. (2020). Visual adaptation of opsin genes to the aquatic environment in sea snakes. BMC Evolutionary Biology. 20(1). 158–158. 6 indexed citations
3.
Kawamura, Izuru, Takashi Okitsu, Akimori Wada, et al.. (2018). Retinal Configuration of ppR Intermediates Revealed by Photoirradiation Solid-State NMR and DFT. Biophysical Journal. 115(1). 72–83. 10 indexed citations
4.
Terai, Yohey, Ryutaro Miyagi, Mitsuto Aibara, et al.. (2017). Visual adaptation in Lake Victoria cichlid fishes: depth-related variation of color and scotopic opsins in species from sand/mud bottoms. BMC Evolutionary Biology. 17(1). 200–200. 26 indexed citations
5.
Kawamura, Izuru, Takashi Okitsu, Akimori Wada, et al.. (2015). Characterization of photo-intermediates in the photo-reaction pathways of a bacteriorhodopsin Y185F mutant using in situ photo-irradiation solid-state NMR spectroscopy. Photochemical & Photobiological Sciences. 14(9). 1694–1702. 7 indexed citations
6.
Sakane, Chiharu, Takashi Okitsu, Akimori Wada, Hiroshi Sagami, & Yoshihiro Shidoji. (2014). Inhibition of lysine-specific demethylase 1 by the acyclic diterpenoid geranylgeranoic acid and its derivatives. Biochemical and Biophysical Research Communications. 444(1). 24–29. 25 indexed citations
7.
Kawamura, Izuru, et al.. (2014). Color‐Discriminating Retinal Configurations of Sensory Rhodopsin I by Photo‐Irradiation Solid‐State NMR Spectroscopy. Angewandte Chemie International Edition. 53(27). 6960–6964. 14 indexed citations
8.
Okitsu, Takashi, et al.. (2014). Comparison study of various motors for EVs and the potentiality of a ferrite magnet motor. 3. 1886–1891. 15 indexed citations
9.
Hirota, Yoshihisa, Naoko Tsugawa, Kimie Nakagawa, et al.. (2013). Menadione (Vitamin K3) Is a Catabolic Product of Oral Phylloquinone (Vitamin K1) in the Intestine and a Circulating Precursor of Tissue Menaquinone-4 (Vitamin K2) in Rats. Journal of Biological Chemistry. 288(46). 33071–33080. 101 indexed citations
10.
Okitsu, Takashi, et al.. (2013). Substituent Effect of Bis(pyridines)iodonium Complexes as Iodinating Reagents: Control of the Iodocyclization/Oxidation Process. Chemistry - A European Journal. 19(16). 4992–4996. 53 indexed citations
11.
Wang, Shenlin, Rachel Munro, Lichi Shi, et al.. (2013). Solid-state NMR spectroscopy structure determination of a lipid-embedded heptahelical membrane protein. Nature Methods. 10(10). 1007–1012. 185 indexed citations
12.
Miyagi, Ryutaro, Yohey Terai, Mitsuto Aibara, et al.. (2012). Correlation between Nuptial Colors and Visual Sensitivities Tuned by Opsins Leads to Species Richness in Sympatric Lake Victoria Cichlid Fishes. Molecular Biology and Evolution. 29(11). 3281–3296. 41 indexed citations
13.
Wang, Shenlin, Lichi Shi, Takashi Okitsu, et al.. (2012). Solid-state NMR 13C and 15N resonance assignments of a seven-transmembrane helical protein Anabaena Sensory Rhodopsin. Biomolecular NMR Assignments. 7(2). 253–256. 17 indexed citations
14.
Suhara, Yoshitomo, Takashi Okitsu, Miho Sakai, et al.. (2012). Structure–Activity Relationship of Novel Menaquinone-4 Analogues: Modification of the Side Chain Affects their Biological Activities. Journal of Medicinal Chemistry. 55(4). 1553–1558. 18 indexed citations
15.
Kawamura, Izuru, Takashi Okitsu, Akimori Wada, et al.. (2011). An Active Photoreceptor Intermediate Revealed by In Situ Photoirradiated Solid-State NMR Spectroscopy. Biophysical Journal. 101(10). L50–L52. 17 indexed citations
16.
Fujioka, Hiromichi, Kenzo Yahata, Ozora Kubo, et al.. (2011). Reaction of Acetals with Various Carbon Nucleophiles under Non‐Acidic Conditions: CC Bond Formation via a Pyridinium‐Type Salt. Chemistry - An Asian Journal. 7(2). 367–373. 15 indexed citations
17.
Okitsu, Takashi, Natsumi Sawada, Kimie Nakagawa, et al.. (2011). Replacement of the hydrophobic part of 9-cis-retinoic acid with cyclic terpenoid moiety results in RXR-selective agonistic activity. Bioorganic & Medicinal Chemistry. 19(9). 2939–2949. 7 indexed citations
18.
Wada, Akimori, Fei Wang, Yoshitomo Suhara, et al.. (2010). Efficient synthesis and biological evaluation of demethyl geranylgeranoic acid derivatives. Bioorganic & Medicinal Chemistry. 18(16). 5795–5806. 8 indexed citations
19.
20.
Fujioka, Hiromichi, Yoshinari Sawama, Naoyuki Kotoku, et al.. (2007). Concise Asymmetric Total Synthesis of Scyphostatin, a Potent Inhibitor of Neutral Sphingomyelinase. Chemistry - A European Journal. 13(36). 10225–10238. 33 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Richard E. Brown Breakdown of academic impact, for papers by Peter König Breakdown of academic impact, for papers by Serge Crouzy Breakdown of academic impact, for papers by Hai Won Chang Breakdown of academic impact, for papers by Shigeru Negi Breakdown of academic impact, for papers by Weili Cui Breakdown of academic impact, for papers by Han Sun Breakdown of academic impact, for papers by Tomohiro Kimura Breakdown of academic impact, for papers by Zheng Shi Breakdown of academic impact, for papers by Sivakumar Sekharan
Rankless by CCL
2026