Naoki Kajiyama

1.5k total citations
37 papers, 1.2k citations indexed

About

Naoki Kajiyama is a scholar working on Molecular Biology, Cellular and Molecular Neuroscience and Biochemistry. According to data from OpenAlex, Naoki Kajiyama has authored 37 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Molecular Biology, 10 papers in Cellular and Molecular Neuroscience and 10 papers in Biochemistry. Recurrent topics in Naoki Kajiyama's work include bioluminescence and chemiluminescence research (12 papers), Photoreceptor and optogenetics research (10 papers) and Amino Acid Enzymes and Metabolism (9 papers). Naoki Kajiyama is often cited by papers focused on bioluminescence and chemiluminescence research (12 papers), Photoreceptor and optogenetics research (10 papers) and Amino Acid Enzymes and Metabolism (9 papers). Naoki Kajiyama collaborates with scholars based in Japan. Naoki Kajiyama's co-authors include Eiichi Nakano, Kozo Hirokawa, Keiko Gomi, Hiroki Tatsumi, Michinori Kohara, Aki Abe, Seiji Murakami, Takeshi Tanaka, Kazuaki Inoue and Junko Kato and has published in prestigious journals such as Journal of Biological Chemistry, Applied and Environmental Microbiology and Biochemistry.

In The Last Decade

Naoki Kajiyama

36 papers receiving 1.2k citations

Peers

Countries citing papers authored by Naoki Kajiyama

Since Specialization

Citations

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

Fields of papers citing papers by Naoki Kajiyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Naoki Kajiyama

This figure shows the co-authorship network connecting the top 25 collaborators of Naoki Kajiyama. A scholar is included among the top collaborators of Naoki Kajiyama 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 Naoki Kajiyama. Naoki Kajiyama 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	Development of novel fructosyl peptide oxidases and their applications for the clinical diagnosis for diabetes 2014 ·Keiko Gomi, Kozo Hirokawa, (unknown), (unknown), Naoki Kajiyama	1
2	Crystallization and preliminary crystallographic analysis of two eukaryotic fructosyl peptide oxidases 2013 ·Acta Crystallographica Section F Structural Biology and Crystallization Communications ·(unknown), Kozo Hirokawa, Keiko Gomi, Toru Nakatsu, Hiroaki Kato, Naoki Kajiyama	4
3	Discrimination of methicillin-resistant Staphylococcus aureus from methicillin-susceptible Staphylococcus aureus or coagulase-negative staphylococci by detection of penicillin-binding protein 2 and penicillin-binding protein 2′ using a bioluminescent enzyme immunoassay 2012 ·Journal of Immunological Methods ·Kazuki Shiga, Keiko Gomi, Motoi Nishimura, Masaharu Watanabe, Fumio Nomura, Naoki Kajiyama	6
4	Enhancement of thermostability of fungal deglycating enzymes by directed evolution 2008 ·Applied Microbiology and Biotechnology ·Kozo Hirokawa, (unknown), Naoki Kajiyama	27
5	Pretreatment Prediction of Interferon-Alfa Efficacy in Chronic Hepatitis C Patients 2005 ·Clinical Gastroenterology and Hepatology ·Kazuhiro Hayashida, (unknown), Akito Sakai, Takeshi Tanaka, Kyosuke Kaji, Niro Inaba, Satoshi Ando, Naoki Kajiyama, Hiroshi Terasaki, Aki Abe, (unknown), Michinori Kohara, Mine Harada, Takeshi Okanoue, Satoru Ito, Shuichi Kaneko	15
6	Thermostabilization of porcine kidney D‐amino acid oxidase by a single amino acid substitution 2005 ·Biotechnology and Bioengineering ·(unknown), Chiaki Setoyama, Retsu Miura, Naoki Kajiyama	9
7	An enzymatic method for the determination of hemoglobinA1C 2005 ·Biotechnology Letters ·Kozo Hirokawa, (unknown), Naoki Kajiyama	16
8	Enzymes used for the determination of HbA_1C 2004 ·FEMS Microbiology Letters ·Kozo Hirokawa, Kazuo Nakamura, Naoki Kajiyama	37
9	A low-density cDNA microarray with a unique reference RNA: pattern recognition analysis for IFN efficacy prediction to HCV as a model 2004 ·Biochemical and Biophysical Research Communications ·(unknown), Niro Inaba, Satoshi Ando, Naoki Kajiyama, Hiroshi Yatsuhashi, Hiroshi Terasaki, Atsushi Ito, (unknown), Aki Abe, (unknown), Kazuhiro Hayashida, Shuichi Kaneko, Michinori Kohara, Satoru Ito	6
10	Molecular cloning and expression of novel fructosyl peptide oxidases and their application for the measurement of glycated protein 2003 ·Biochemical and Biophysical Research Communications ·Kozo Hirokawa, Keiko Gomi, Naoki Kajiyama	35
11	Cloning and expression of tannase gene from Aspergillus oryzae 2003 ·(unknown), Genryou Umitsuki, (unknown), Naoki Kajiyama, Tsutomu Masuda	1
12	Mutant Luciferase Enzymes from Fireflies with Increased Resistance to Benzalkonium Chloride 2002 ·Bioscience Biotechnology and Biochemistry ·Noriaki Hattori, Naoki Kajiyama, Masako Maeda, Seiji Murakami	16
13	Molecular cloning and expression of the cDNAs encoding luciferin-regenerating enzyme from Luciola cruciata and Luciola lateralis 2002 ·Gene ·Keiko Gomi, Kozo Hirokawa, Naoki Kajiyama	28
14	Improved practical usefulness of firefly luciferase by gene chimerization and random mutagenesis 2002 ·Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology ·Kozo Hirokawa, Naoki Kajiyama, Seiji Murakami	33
15	Establishment of permanent cell lines exhibiting vitamin D-dependent expression of β-galactosidase activity 1999 ·Biochemical Pharmacology ·Yoichi Negishi, Naoki Kajiyama, Kohtaro Kawashima, Toshie Fujishima, Hiroaki Takayama, Hiroyoshi Endo, (unknown)	0
16	Enhancement of Thermostability of Firefly Luciferase fromLuciola lateralisby a Single Amino Acid Substitution 1994 ·Bioscience Biotechnology and Biochemistry ·Naoki Kajiyama, Eiichi Nakano	38
17	Thermostabilization of firefly luciferase by a single amino acid substitution at position 217 1993 ·Biochemistry ·Naoki Kajiyama, Eiichi Nakano	73
18	Molecular cloning and expression in Escherichia coli of a cDNA clone encoding luciferase of a firefly, Luciola lateralis 1992 ·Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression ·Hiroki Tatsumi, Naoki Kajiyama, Eiichi Nakano	64
19	Purification and characterization of luciferases from fireflies, Luciola cruciata and Luciola lateralis 1992 ·Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology ·Naoki Kajiyama, Tsutomu Masuda, Hiroki Tatsumi, Eiichi Nakano	21
20	Isolation and characterization of mutants of firefly luciferase which produce different colors of light 1991 ·Protein Engineering Design and Selection ·Naoki Kajiyama, (unknown)	127

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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