HIROAKI OHKUMA

2.3k total citations
27 papers, 1.9k citations indexed

About

HIROAKI OHKUMA is a scholar working on Pharmacology, Molecular Biology and Organic Chemistry. According to data from OpenAlex, HIROAKI OHKUMA has authored 27 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Pharmacology, 16 papers in Molecular Biology and 11 papers in Organic Chemistry. Recurrent topics in HIROAKI OHKUMA's work include Microbial Natural Products and Biosynthesis (16 papers), Cancer therapeutics and mechanisms (6 papers) and Chemical Synthesis and Analysis (5 papers). HIROAKI OHKUMA is often cited by papers focused on Microbial Natural Products and Biosynthesis (16 papers), Cancer therapeutics and mechanisms (6 papers) and Chemical Synthesis and Analysis (5 papers). HIROAKI OHKUMA collaborates with scholars based in Japan, Germany and United Kingdom. HIROAKI OHKUMA's co-authors include MASATAKA KONISHI, Hiroshi Kawaguchi, TOSHIKAZU OKI, Takashi Tsuno, Jon Clardy, Gregory D. VanDuyne, KYOICHIRO SAITOH, Jerzy Golik, Terrence W. Doyle and George R. Dubay and has published in prestigious journals such as Journal of the American Chemical Society, Biochemistry and The Journal of Organic Chemistry.

In The Last Decade

HIROAKI OHKUMA

27 papers receiving 1.8k citations

Peers

HIROAKI OHKUMA

PHARM

BIOTE

TOXIC

SHOSHIRO NAKAMURA Japan

G. O. MORTON United States

Donald B. Borders United States

Kathlyn A. Parker United States

William J. McGahren United States

Gary I. Dmitrienko Canada

Antony D. Buss Singapore

Takashi Harayama Japan

James A. Matson United States

Paul F. Wiley United States

SHOSHIRO NAKAMURA Japan

HIROAKI OHKUMA

724 ×0.5

838 ×1.1

421 ×0.9

PHARM

130 ×0.9

BIOTE

203 ×1.5

TOXIC

Citations per year, relative to HIROAKI OHKUMA HIROAKI OHKUMA (= 1×) peers SHOSHIRO NAKAMURA

Countries citing papers authored by HIROAKI OHKUMA

Since Specialization

Citations

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

Fields of papers citing papers by HIROAKI OHKUMA

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of HIROAKI OHKUMA

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

NISHIO, MAKI, MITSUAKI TSUNAKAWA, TAMOTSU FURUMAI, et al.. (1995). High-resolution solution structure of siamycin II: Novel amphipathic character of a 21-residue peptide that inhibits HIV fusion. Journal of Biomolecular NMR. 5(3). 271–86. 47 indexed citations

NISHIO, MAKI, HIROAKI OHKUMA, Masatoshi Kakushima, et al.. (1993). Synthesis and antifungal activities of pradimicin A derivatives modification of the alanine moiety.. The Journal of Antibiotics. 46(3). 494–499. 7 indexed citations

OHKUMA, HIROAKI, Koji Tomita, Yutaka Hoshino, et al.. (1993). 5-Hydroxyanthranilic acid derivatives as potent 5-lipoxygenase inhibitors.. The Journal of Antibiotics. 46(5). 705–711. 3 indexed citations

Ueki, Tomokazu, Kei-Ichi Numata, YOSUKE SAWADA, et al.. (1993). Studies on the mode of antifungal action of pradimicin antibiotics. II. D-mannopyranoside-binding site and calcium-binding site.. The Journal of Antibiotics. 46(3). 455–464. 42 indexed citations

OHKUMA, HIROAKI, NOBUAKI NARUSE, Yuji Nishiyama, et al.. (1992). Sultriecin, a new antifungal and antitumor antibiotic from Streptomyces roseiscleroticus. Production, isolation, structure and biological activity.. The Journal of Antibiotics. 45(8). 1239–1249. 36 indexed citations

Sugiura, Yukio, et al.. (1991). Reductive and nucleophilic activation products of dynemicin A with methyl thioglycolate. A rational mechanism for DNA cleavage of the thiol-activated dynemicin A. Biochemistry. 30(12). 2989–2992. 42 indexed citations

Hanada, Minoru, HIROAKI OHKUMA, Koji Tomita, et al.. (1991). Maduropeptin, a complex of new macromolecular antitumor antibiotics.. The Journal of Antibiotics. 44(4). 403–414. 43 indexed citations

KONISHI, MASATAKA, HIROAKI OHKUMA, Kiyoshi Matsumoto, et al.. (1991). Dynemicins, new antibiotics with the 1,5-diyn-3-ene and anthraquinone subunit. I. Productin, isolation and physico-chemical properties.. The Journal of Antibiotics. 44(12). 1300–1305. 32 indexed citations

OHKUMA, HIROAKI, Takashi Tsuno, MASATAKA KONISHI, TAKAYUKI NAITÔ, & Hiroshi Kawaguchi. (1991). Complete structures of breynins A and B.. Chemical and Pharmaceutical Bulletin. 39(4). 942–944. 11 indexed citations

10.

Tomita, Koji, MAKI NISHIO, KYOICHIRO SAITOH, et al.. (1990). Pradimicins A, B and C: New antifungal antibiotics. I. Taxonomy, production, isolation and physico-chemical properties.. The Journal of Antibiotics. 43(7). 755–762. 50 indexed citations

11.

KONISHI, MASATAKA, HIROAKI OHKUMA, Takashi Tsuno, et al.. (1990). Crystal and molecular structure of dynemicin A: a novel 1,5-diyn-3-ene antitumor antibiotic. Journal of the American Chemical Society. 112(9). 3715–3716. 399 indexed citations

12.

KONISHI, M., HIROAKI OHKUMA, Takashi Tsuno, et al.. (1990). ChemInform Abstract: Crystal and Molecular Structure of Dynemicin A (Ia): A Novel 1,5‐Diyn‐3‐ene Antitumor Antibiotic. ChemInform. 21(35). 1 indexed citations

13.

TSUNAKAWA, MITSUAKI, MAKI NISHIO, HIROAKI OHKUMA, et al.. (1989). The structure of pradimicins A, B and C: a novel family of antifungal antibiotics. The Journal of Organic Chemistry. 54(11). 2532–2536. 61 indexed citations

14.

OKA, MASAHISA, HIROAKI OHKUMA, Hideo Kamei, et al.. (1988). Glidobactins D, E, F, G and H; Minor components of the antitumor antibiotic glidobactin.. The Journal of Antibiotics. 41(12). 1906–1909. 27 indexed citations

15.

OHKUMA, HIROAKI, Osamu Tenmyo, MASATAKA KONISHI, TOSHIKAZU OKI, & Hiroshi Kawaguchi. (1988). BMY-28190, a novel antiviral antibiotic complex.. The Journal of Antibiotics. 41(7). 849–854. 8 indexed citations

16.

Golik, Jerzy, Jon Clardy, George R. Dubay, et al.. (1987). Esperamicins, a novel class of potent antitumor antibiotics. 2. Structure of esperamicin X. Journal of the American Chemical Society. 109(11). 3461–3462. 211 indexed citations

17.

Golik, Jerzy, George R. Dubay, Gary S. Groenewold, et al.. (1987). Esperamicins, a novel class of potent antitumor antibiotics. 3. Structures of esperamicins A1, A2, and A1b. Journal of the American Chemical Society. 109(11). 3462–3464. 255 indexed citations

18.

KONISHI, MASATAKA, HIROAKI OHKUMA, Takashi Tsuno, et al.. (1981). BBM-928, a new antitumor antibiotic complex. III. Structure determination of BBM-928 A, B and C.. The Journal of Antibiotics. 34(2). 148–159. 43 indexed citations

19.

KONISHI, MASATAKA, HIROAKI OHKUMA, Takashi Tsuno, et al.. (1981). Structures of BBM-928 A, B, and C. Novel antitumor antibiotics from Actinomadura luzonensis. Journal of the American Chemical Society. 103(5). 1241–1243. 45 indexed citations

20.

NAITÔ, TAKAYUKI, Susumu Nakagawa, SOICHIRO TODA, et al.. (1973). AMINOGLYCOSIDE ANTIBIOTICS. II.. The Journal of Antibiotics. 26(5). 297–301. 17 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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