MASA HAMADA

9.9k total citations · 2 hit papers
229 papers, 7.5k citations indexed

About

MASA HAMADA is a scholar working on Molecular Biology, Pharmacology and Organic Chemistry. According to data from OpenAlex, MASA HAMADA has authored 229 papers receiving a total of 7.5k indexed citations (citations by other indexed papers that have themselves been cited), including 125 papers in Molecular Biology, 120 papers in Pharmacology and 67 papers in Organic Chemistry. Recurrent topics in MASA HAMADA's work include Microbial Natural Products and Biosynthesis (103 papers), Fungal Biology and Applications (24 papers) and Synthesis and Biological Activity (22 papers). MASA HAMADA is often cited by papers focused on Microbial Natural Products and Biosynthesis (103 papers), Fungal Biology and Applications (24 papers) and Synthesis and Biological Activity (22 papers). MASA HAMADA collaborates with scholars based in Japan, United Kingdom and United States. MASA HAMADA's co-authors include TOMIO TAKEUCHI, HAMAO UMEZAWA, TAKAAKI AOYAGI, HIROSHI NAGANAWA, Shinichi Kondo, TSUTOMU SAWA, HIRONOBU IINUMA, MEIKI MATSUZAKI, Naoko Kinoshita and Fukiko Kojima and has published in prestigious journals such as Biochemical and Biophysical Research Communications, FEBS Letters and Antimicrobial Agents and Chemotherapy.

In The Last Decade

MASA HAMADA

228 papers receiving 7.1k 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.

Bestatin, an inhibitor of aminopeptidase B, produced by actinomycetes.

1976 604 citations HAMAO UMEZAWA, TAKAAKI AOYAGI et al. The Journal of Antibiotics profile →
PEPSTATIN, A NEW PEPSIN INHIBITOR PRODUCED BY AGTINOMYGETES

1970 556 citations HAMAO UMEZAWA, TAKAAKI AOYAGI et al. The Journal of Antibiotics profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
MASA HAMADA Japan	45	4.5k	2.4k	2.2k	1.3k	975	229	7.5k
HIROSHI NAGANAWA Japan	46	4.1k 0.9×	3.0k 1.2×	3.0k 1.3×	958 0.7×	1.1k 1.1×	328	7.8k
TAKAAKI AOYAGI Japan	41	4.1k 0.9×	1.4k 0.6×	935 0.4×	2.0k 1.5×	739 0.8×	164	6.6k
Kazuo Nagai Japan	48	4.1k 0.9×	955 0.4×	925 0.4×	1.1k 0.8×	521 0.5×	202	7.0k
MASANOBU KOHSAKA Japan	39	3.0k 0.7×	1.6k 0.6×	1.5k 0.7×	509 0.4×	567 0.6×	138	5.9k
Otto D. Hensens United States	32	2.5k 0.6×	1.1k 0.5×	1.7k 0.8×	566 0.4×	1.1k 1.1×	71	4.7k
Takuma Sasaki Japan	52	3.3k 0.7×	2.7k 1.1×	1.7k 0.8×	1.2k 0.9×	1.7k 1.7×	222	8.3k
Jerrold M. Liesch United States	32	2.3k 0.5×	1.0k 0.4×	1.4k 0.6×	603 0.5×	978 1.0×	60	4.3k
TOSHIKAZU OKI Japan	41	3.2k 0.7×	3.0k 1.2×	2.4k 1.1×	768 0.6×	837 0.9×	237	6.6k
Susan Kenney United States	15	4.6k 1.0×	3.1k 1.3×	1.3k 0.6×	2.0k 1.5×	671 0.7×	25	9.5k
John A. Beutler United States	41	3.0k 0.7×	1.7k 0.7×	1.1k 0.5×	505 0.4×	745 0.8×	180	5.6k

Countries citing papers authored by MASA HAMADA

Since Specialization

Citations

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

Fields of papers citing papers by MASA HAMADA

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of MASA HAMADA

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Hashizume, Hideki, Masayuki Igarashi, Seiko Hattori, et al.. (2001). Tripropeptins, Novel Antimicrobial Agents Produced by Lysobacter sp. I. Taxonomy, Isolation and Biological Activities.. The Journal of Antibiotics. 54(12). 1054–1059. 63 indexed citations

NAGANAWA, HIROSHI, Takako Kasahara, Seiko Hattori, et al.. (1999). Futalosine and Its Derivatives, New Nucleoside Analogs.. Chemical and Pharmaceutical Bulletin. 47(7). 1032–1034. 8 indexed citations

Matsumoto, Naoki, Masato Maruyama, Naoko Kinoshita, et al.. (1999). Lactonamycin, a New Antimicrobial Antibiotic Produced by Streptomyces rishiriensis MJ773-88K4. I. Taxonomy, Fermentation, Isolation, Physico-chemical Properties and Biological Activities.. The Journal of Antibiotics. 52(3). 269–275. 50 indexed citations

Matsumoto, Naoki, Toshio Tsuchida, Maya Umekita, et al.. (1997). Epoxyquinomicins A, B, C and D, New Antibiotics from Amycolatopsis. I. Taxonomy, Fermentation, Isolation and Antimicrobial Activities.. The Journal of Antibiotics. 50(11). 900–905. 37 indexed citations

Sasaki, Tōru, TOSHIO OTANI, Ken‐ichiro Yoshida, et al.. (1997). Discovery of Methyl-2-(2'-hydroxyphenyl)-2-oxazoline-4-carboxylate as a Secondary Metabolite from Actinomadura sp.. The Journal of Antibiotics. 50(10). 881–883. 9 indexed citations

Inouye, Shigeharu, et al.. (1996). Antibacterial activity and nephrotoxicity of two novel 2″-amino derivatives of arbekacin. Journal of Infection and Chemotherapy. 2(2). 84–89. 2 indexed citations

Kawamura, Naoto, Naoko Kinoshita, Ryûichi Sawa, et al.. (1996). Pyralomicins, Novel Antibiotics from Microtetraspora spiralis. I. Taxonomy and Production.. The Journal of Antibiotics. 49(7). 706–709. 17 indexed citations

Sawa, Ryûichi, Yoshikazu Takahashi, KAZUO SHIMANAKA, et al.. (1994). Aldecalmycin, a new antimicrobial antibiotic from Streptomyces. I. Taxonomy, fermentation, isolation, physico-chemical and biological properties.. The Journal of Antibiotics. 47(11). 1266–1272. 7 indexed citations

Fukazawa, Hidesuke, Yoshimasa Uehara, Yuko Murakami, et al.. (1994). Labeling of v‐Src and BCR‐ABL tyrosine kinases with [¹⁴C]herbimycin A and its use in the elucidation of the kinase inactivation mechanism. FEBS Letters. 340(3). 155–158. 44 indexed citations

10.

Ueno, Mitsuhiro, Masahide Amemiya, Masatomi Iijima, et al.. (1993). Delaminomycins, novel extracellular matrix receptor antagonist.. The Journal of Antibiotics. 46(7). 1156–1162. 6 indexed citations

11.

Ueno, Mitsuhiro, Masahide Amemiya, Masatomi Iijima, et al.. (1993). Delaminomycins, novel nonpeptide extracellular matrix receptor antagonist and a new class of potent immunomodulator. I. Taxonomy, fermentation, isolation and biological activity.. The Journal of Antibiotics. 46(5). 719–727. 14 indexed citations

12.

Aoyama, Takayuki, et al.. (1992). Cyclooctatin, a new inhibitor of lysophospholipase, produced by Streptomyces melanosporofaciens MI614-43F2. Taxonomy, production, isolation, physico-chemical properties and biological activities.. The Journal of Antibiotics. 45(10). 1587–1591. 30 indexed citations

13.

Ikeda, Yoko, Shuichi Gomi, MASA HAMADA, Shinichi Kondo, & TOMIO TAKEUCHI. (1992). Production of bellenamine and new metabolites in a synthetic medium.. The Journal of Antibiotics. 45(11). 1763–1766. 6 indexed citations

14.

AOYAGI, TAKAAKI, et al.. (1991). Leuhistin, a new inhibitor of aminopeptidase M, produced by Bacillus laterosporus BMI156-14F1. I. Taxonomy, production, isolation, physico-chemical properties and biological activities.. The Journal of Antibiotics. 44(6). 573–578. 32 indexed citations

15.

Koyama, Yoshiyuki, et al.. (1989). Orally absorbable D-forphenicinol-cephalosporins.. The Journal of Antibiotics. 42(6). 993–999. 1 indexed citations

16.

Dobashi, Kazuyuki, Jianxin Yang, Yoshikazu Takahashi, et al.. (1989). The structure of hidamicin, a polyether antibiotic.. The Journal of Antibiotics. 42(4). 629–632. 1 indexed citations

17.

Iinuma, Hironobu, Yumi Sasaki, MASA HAMADA, et al.. (1989). Isolation of a Novel Tyrosine Kinase Inhibitor, Lavendustin A, from Streptomyces griseolavendus. Journal of Natural Products. 52(6). 1252–1257. 219 indexed citations

18.

ISSHIKI, KUNIO, Yoshikazu Takahashi, Mayumi Okada, et al.. (1987). A new antibiotic indisocin and N-methylindisocin.. The Journal of Antibiotics. 40(8). 1195–1198. 8 indexed citations

19.

Nakazawa, Shozo, et al.. (1962). Studies on antitumor activity of components of lichens. I:Effect of psoromic acid. The Journal of Antibiotics. 15(5). 282–289. 1 indexed citations

20.

HAMADA, MASA, et al.. (1958). Experimental Results on Extra Body Plasmodium berghei with special reference to in vitro Conservation.. 7(1). 1 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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