Ken Hirotsu

6.8k total citations · 1 hit paper
211 papers, 5.6k citations indexed

About

Ken Hirotsu is a scholar working on Organic Chemistry, Materials Chemistry and Molecular Biology. According to data from OpenAlex, Ken Hirotsu has authored 211 papers receiving a total of 5.6k indexed citations (citations by other indexed papers that have themselves been cited), including 101 papers in Organic Chemistry, 75 papers in Materials Chemistry and 73 papers in Molecular Biology. Recurrent topics in Ken Hirotsu's work include Enzyme Structure and Function (46 papers), Synthesis and characterization of novel inorganic/organometallic compounds (36 papers) and Amino Acid Enzymes and Metabolism (24 papers). Ken Hirotsu is often cited by papers focused on Enzyme Structure and Function (46 papers), Synthesis and characterization of novel inorganic/organometallic compounds (36 papers) and Amino Acid Enzymes and Metabolism (24 papers). Ken Hirotsu collaborates with scholars based in Japan, United States and Switzerland. Ken Hirotsu's co-authors include Taiichi Higuchi, I. Miyahara, Hiroyuki Kagamiyama, Masaaki Yoshifuji, Makoto Kumada, Akira Shimada, Tamio Hayashi, Masaru Goto, Mitsuo Konishi and Akihiro Okamoto 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

Ken Hirotsu

206 papers receiving 5.4k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Dichloro[1,1'-bis(diphenylphosphino)ferrocene]palladium(II): an effective catalyst for cross-coupling of secondary and primary alkyl Grignard and alkylzinc reagents with organic halides

1984 641 citations Makoto Kumada, Taiichi Higuchi et al. profile →

Peers

Countries citing papers authored by Ken Hirotsu

Since Specialization

Citations

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

Fields of papers citing papers by Ken Hirotsu

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ken Hirotsu

This figure shows the co-authorship network connecting the top 25 collaborators of Ken Hirotsu. A scholar is included among the top collaborators of Ken Hirotsu 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 Ken Hirotsu. Ken Hirotsu 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

#	Work	Indexed citations
1	Substrate Specificity of Fluoroacetate Dehalogenase: An Insight from Crystallographic Analysis, Fluorescence Spectroscopy, and Theoretical Computations 2012 ·Chemistry - A European Journal ·(unknown), Takashi Kamachi, (unknown), R. Omi, Ken Hirotsu, Nobuyoshi Esaki, Tatsuo Kurihara, Kazunari Yoshizawa	23
2	Serine Racemase with Catalytically Active Lysinoalanyl Residue* 2009 ·The Journal of Biochemistry ·(unknown), Masaru Goto, (unknown), Takuma Uo, Tohru Yoshimura, Hisaaki Mihara, Tatsuo Kurihara, I. Miyahara, Ken Hirotsu, Nobuyoshi Esaki	26
3	Engineering the Substrate Specificity of Porcine Kidney d-Amino Acid Oxidase by Mutagenesis of the “Active-Site Lid” 2006 ·The Journal of Biochemistry ·Chiaki Setoyama, Yasuzo Nishina, Hisashi Mizutani, I. Miyahara, Ken Hirotsu, Nobuo Kamiya, Kiyoshi Shiga, Retsu Miura	22
4	Crystal Structures of CTP Synthetase Reveal ATP, UTP, and Glutamine Binding Sites 2004 ·Structure ·Masaru Goto, R. Omi, Noriko Nakagawa, I. Miyahara, Ken Hirotsu	60
5	Expression, purification and preliminary X-ray characterization of CTP synthetase fromThermus thermophilusHB8 2003 ·Acta Crystallographica Section D Biological Crystallography ·Masaru Goto, R. Omi, Jun Hoseki, Noriko Nakagawa, I. Miyahara, Ken Hirotsu	2
6	Strain and catalysis in aspartate aminotransferase 2003 ·Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics ·Hideyuki Hayashi, Hiroyuki Mizuguchi, I. Miyahara, Mohammad Mainul Islam, Hiroko Ikushiro, Y. Nakajima, Ken Hirotsu, Hiroyuki Kagamiyama	35
7	Crystal Structures of Threonine Synthase from Thermus thermophilus HB8 2003 ·Journal of Biological Chemistry ·R. Omi, Masaru Goto, I. Miyahara, Hiroyuki Mizuguchi, Hideyuki Hayashi, Hiroyuki Kagamiyama, Ken Hirotsu	25
8	Characterization of histidinol phosphate aminotransferase from Escherichia coli 2003 ·Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics ·Hiroyuki Mizuguchi, Hideyuki Hayashi, I. Miyahara, Ken Hirotsu, Hiroyuki Kagamiyama	9
9	Structures of Argininosuccinate Synthetase in Enzyme-ATP Substrates and Enzyme-AMP Product Forms 2003 ·Journal of Biological Chemistry ·Masaru Goto, R. Omi, I. Miyahara, Mitsuaki Sugahara, Ken Hirotsu	18
10	Crystal Structure of Argininosuccinate Synthetase fromThermus thermophilus HB8 2002 ·Journal of Biological Chemistry ·Masaru Goto, Y. Nakajima, Ken Hirotsu	16
11	Crystallization and preliminary X-ray characterization of rat liver acyl-CoA oxidase 2001 ·Acta Crystallographica Section D Biological Crystallography ·Y. Nakajima, I. Miyahara, Ken Hirotsu, Yasuzo Nishina, Kiyoshi Shiga, Chiaki Setoyama, Haruhiko Tamaoki, Retsu Miura	1
12	Crystal structures of Paracoccus denitrificans aromatic amino acid aminotransferase: a substrate recognition site constructed by rearrangement of hydrogen bond network 1998 ·Journal of Molecular Biology ·Akihiro Okamoto, Y. Nakai, Hideyuki Hayashi, Ken Hirotsu, Hiroyuki Kagamiyama	78
13	Unusual Disordered Crystal Structure of a Racemate Exhibiting a Novel Enantiomeric Resolution: Preferential Enrichment 1998 ·Angewandte Chemie International Edition ·Rui Tamura, Hiroki Takahashi, Ken Hirotsu, Y. Nakajima, Takanori Ushio, Fumio Toda	40
14	Isolation of anhydrous hydrazine as stable inclusion complexes with hydroquinone and p-methoxyphenol, and their solid state reaction with esters which gives pure hydrazides 1995 ·Journal of the Chemical Society Chemical Communications ·F. Toda, (unknown), (unknown), Ken Hirotsu	29
15	X-Ray Crystallographic Study of Pyridoxal 5′-Phosphate-Type Aspartate Aminotransferases from Escherichia coli in Open and Closed Form1 1994 ·The Journal of Biochemistry ·Akihiro Okamoto, Taiichi Higuchi, Ken Hirotsu, S. Kuramitsu, Hiroyuki Kagamiyama	132
16	Preparations, solution conformations and molecular structures of N,N′‐ethylene‐bridged dipeptides and their derivatives 1991 ·International journal of peptide & protein research ·Yoshitane Kojima, Youko Ikeda, (unknown), (unknown), Akihiro Okamoto, Ken Hirotsu, Kozo Shibata, (unknown)	13
17	Site-directed mutagenesis of Escherichia coli aspartate aminotransferase: role of Tyr70 in the catalytic processes 1991 ·Biochemistry ·Katsura Inoue, Seiki Kuramitsu, Akihiro Okamoto, Ken Hirotsu, Taiichi Higuchi, Hiroyuki Kagamiyama	25
18	Three-Dimensional Structure of Aspartate Aminotransferase from Escherichia coli at 2.8 Å Resolution 1988 ·The Journal of Biochemistry ·S. Kamitori, Ken Hirotsu, Taiichi Higuchi, Kiyoshi Kondo, Katsura Inoue, Seiki Kuramitsu, Hiroyuki Kagamiyama, Yoshiki Higuchi, Noritake Yasuoka, Masami Kusunoki, Y. Matsuura	32
19	Silacyclopropene ring structure; X-ray crystal structure of 1,1-dimesityl-2-phenyl-3-trimethylsilyl-1-silacyclopropene 1982 ·Journal of the Chemical Society Chemical Communications ·Ken Hirotsu, Taiichi Higuchi, Mitsuo Ishikawa, Hiroshi Sugisawa, Makoto Kumada	31
20	Structure of yomogiartemin, a novel sesquiterpene .ALPHA.-methylene-.GAMMA.-lactone from Artemisia feddei. 1979 ·Chemistry Letters ·Masato Koreeda, (unknown), (unknown), Ken Hirotsu, Jon Clardy	2

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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