Keijiro Samejima

2.2k citations
123 papers · 1.9k · h-index 23

Impact in

  • Biochemistry top 0.5%
    • Amino Acid Enzymes and Metabolism
    • Polyamine Metabolism and Applications
    • Biopolymer Synthesis and Applications
    • Chemical Synthesis and Analysis

Papers in

    • Polyamine Metabolism and Applications 85
    • Biopolymer Synthesis and Applications 13
    • Chemical Synthesis and Analysis 13
    • Amino Acid Enzymes and Metabolism 41

Keijiro Samejima

118 papers receiving 1.7k citations

Peers

Keijiro Samejima
Comparison fields: 5 of 112
  • Biochemistry 615
  • Molecular Biology 1.5k
  • Pharmacology 271
  • Spectroscopy 199
  • Food Science 113
Replace Masaru Niitsu with:
Masaru Niitsu Japan
George D. Hegeman United States
Hans Ulrich Schairer Germany
Akihiko Kawaguchi Japan
Guy Branlant France
William Shive United States
Bruce A. McFadden United States
R.B. Clayton United States
Hideyuki Hayashi Japan
Gene M. Brown United States
Keijiro Samejima relative to Masaru Niitsu Japan Masaru Niitsu's profile →
Citations per field
00.5×2.7×
Masaru Niitsu · 1×
Citations per year

Countries citing papers authored by Keijiro Samejima

Since Specialization
Citations

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

Fields of papers citing papers by Keijiro Samejima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Keijiro Samejima, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Keijiro Samejima Line = papers co-authored together Keijiro Samejima links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 123 papers — load more, or switch the sort, to bring in the rest.

#Work
1 197181
2 198375
3 197170
4 200562
5 198660
6 199359
7
Correlation between the effects of polyamine analogues on DNA conformation and cell growth.
198957
8 199352
9 198452
10 197448
11 197647
12 199142
13 198237
14 201035
15 199133
16 197532
17 197331
18 197831
19 201127
20 199627

About Keijiro Samejima

Keijiro Samejima is a scholar working on Molecular Biology, Biochemistry, Pharmacology, Organic Chemistry and Spectroscopy, having authored 123 papers that have together received 1.9k indexed citations. Recurring topics across this work include Polyamine Metabolism and Applications (85 papers), Amino Acid Enzymes and Metabolism (41 papers), Cannabis and Cannabinoid Research (15 papers), Biopolymer Synthesis and Applications (13 papers), Chemical Synthesis and Analysis (13 papers), Mass Spectrometry Techniques and Applications (8 papers), Analytical Chemistry and Chromatography (7 papers) and Metabolism and Genetic Disorders (5 papers). The work is most often cited by research in Biochemistry (615 citations), Molecular Biology (1.5k citations), Pharmacology (271 citations), Spectroscopy (199 citations) and Food Science (113 citations). Keijiro Samejima has collaborated with scholars based in Japan, United States and China. Frequent co-authors include Masaru Niitsu, Koei Hamana, Shigeru Matsuzaki, Akira Shirahata, Sidney Udenfriend, Wallace Dairman, Banri Yamanoha, M Kawase, Yasuko Takeda and Masashi Okada. Their work appears in journals such as Chemical and Pharmaceutical Bulletin, Biological and Pharmaceutical Bulletin, Analytical Biochemistry, Phytochemistry and Journal of Chromatography A.

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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