Hirofumi Usui

858 total citations
27 papers, 746 citations indexed

About

Hirofumi Usui is a scholar working on Molecular Biology, Cell Biology and Biotechnology. According to data from OpenAlex, Hirofumi Usui has authored 27 papers receiving a total of 746 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Molecular Biology, 6 papers in Cell Biology and 6 papers in Biotechnology. Recurrent topics in Hirofumi Usui's work include Enzyme Production and Characterization (6 papers), Protein Kinase Regulation and GTPase Signaling (4 papers) and Erythrocyte Function and Pathophysiology (3 papers). Hirofumi Usui is often cited by papers focused on Enzyme Production and Characterization (6 papers), Protein Kinase Regulation and GTPase Signaling (4 papers) and Erythrocyte Function and Pathophysiology (3 papers). Hirofumi Usui collaborates with scholars based in Japan, United States and India. Hirofumi Usui's co-authors include Masao Takeda, Miki Imazu, Teiji Imaoka, Akira Kikuchi, Michiko Kishida, Satoshi Ikeda, Yoshiharu Matsuura, Yasumasa Nishito, Osamu Tanabe and Kazuhiro Maeta and has published in prestigious journals such as Journal of Biological Chemistry, Stroke and Oncogene.

In The Last Decade

Hirofumi Usui

26 papers receiving 721 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hirofumi Usui Japan 13 624 158 72 67 60 27 746
Tetsuji Tanimoto Japan 11 481 0.8× 199 1.3× 48 0.7× 63 0.9× 34 0.6× 18 624
S Hirai Japan 8 689 1.1× 233 1.5× 87 1.2× 89 1.3× 102 1.7× 8 871
Toshiyoshi Yamamoto Japan 11 569 0.9× 119 0.8× 66 0.9× 74 1.1× 49 0.8× 17 813
Christine M. Gould United States 9 794 1.3× 154 1.0× 89 1.2× 66 1.0× 75 1.3× 10 963
S M Lohmann Germany 9 648 1.0× 173 1.1× 65 0.9× 102 1.5× 69 1.1× 10 826
Veronica H. Kang United States 7 622 1.0× 129 0.8× 161 2.2× 36 0.5× 78 1.3× 7 798
Shunji Chi Japan 7 572 0.9× 156 1.0× 101 1.4× 83 1.2× 102 1.7× 9 768
George McConnachie United Kingdom 8 652 1.0× 109 0.7× 55 0.8× 41 0.6× 48 0.8× 8 744
D K Werth United States 9 463 0.7× 287 1.8× 34 0.5× 67 1.0× 85 1.4× 11 676
Chieko Aoyama Japan 14 513 0.8× 85 0.5× 72 1.0× 50 0.7× 48 0.8× 23 692

Countries citing papers authored by Hirofumi Usui

Since Specialization
Citations

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

Fields of papers citing papers by Hirofumi Usui

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hirofumi Usui

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

All Works

20 of 20 papers shown
1.
2.
Tanabe, Osamu, Dai Hirata, Hirofumi Usui, et al.. (2001). Fission yeast homologues of the B′ subunit of protein phosphatase 2A: multiple roles in mitotic cell division and functional interaction with calcineurin. Genes to Cells. 6(5). 455–473. 18 indexed citations
3.
Yamamoto, Hideki, Tatsuo Michiue, Akimasa Fukui, et al.. (2001). Inhibition of the Wnt Signaling Pathway by the PR61 Subunit of Protein Phosphatase 2A. Journal of Biological Chemistry. 276(29). 26875–26882. 53 indexed citations
4.
Ikeda, Satoshi, Michiko Kishida, Yoshiharu Matsuura, Hirofumi Usui, & Akira Kikuchi. (2000). GSK-3β-dependent phosphorylation of adenomatous polyposis coli gene product can be modulated by β-catenin and protein phosphatase 2A complexed with Axin. Oncogene. 19(4). 537–545. 153 indexed citations
5.
Nishito, Yasumasa, Hirofumi Usui, Kyoko Shinzawa‐Itoh, et al.. (1999). Direct metal analyses of Mn2+‐dependent and ‐independent protein phosphatase 2A from human erythrocytes detect zinc and iron only in the Mn2+‐independent one. FEBS Letters. 447(1). 29–33. 19 indexed citations
6.
7.
Tanabe, Osamu, et al.. (1997). Molecular heterogeneity of the cDNA encoding a 74‐kDa regulatory subunit (B″ or δ) of human protein phosphatase 2A1. FEBS Letters. 408(1). 52–56. 13 indexed citations
8.
Tanabe, Osamu, Takehiko Murakami, Hirofumi Usui, et al.. (1996). Molecular cloning of a 74‐kDa regulatory subunit (B″ or δ) of human protein phosphatase 2A. FEBS Letters. 379(1). 107–111. 44 indexed citations
9.
Miyauchi, Takahiro, Hirofumi Usui, Kentaro Semba, et al.. (1992). Purification and Characterization of a Possible Protooncogene fjln Product, p59fyn, from a Rat Brain Particulate Fraction1. The Journal of Biochemistry. 112(6). 729–732. 2 indexed citations
10.
Tsukamoto, Haruhisa, et al.. (1988). Tyrosine Protein Kinases in Membrane Fractions from Rat Cerebral Cortex1. The Journal of Biochemistry. 104(5). 807–816. 4 indexed citations
11.
Usui, Hirofumi, et al.. (1988). Three distinct forms of type 2A protein phosphatase in human erythrocyte cytosol.. Journal of Biological Chemistry. 263(8). 3752–3761. 105 indexed citations
12.
Usui, Hirofumi, K Yoshikawa, Michinori Imazu, Haruhisa Tsukamoto, & Masao Takeda. (1985). Comparison of tyrosine phosphorylation of proteins by membrane fractions from mouse liver, ehrlich ascites tumor and MH134 hepatoma. FEBS Letters. 184(1). 60–64. 9 indexed citations
13.
Yoshikawa, K, Hirofumi Usui, Michinori Imazu, Masao Takeda, & Setsuro Ebashi. (1983). The effect of heart and skeletal muscle troponin complexes and calmodulin on the Ca2+‐dependent reactions of phosphorylase kinase isoenzymes. European Journal of Biochemistry. 136(2). 413–419. 5 indexed citations
14.
Imaoka, Teiji, et al.. (1983). Resolution and reassociation of three distinct components from pig heart phosphoprotein phosphatase.. Journal of Biological Chemistry. 258(3). 1526–1535. 89 indexed citations
15.
Usui, Hirofumi, et al.. (1983). Phosphoprotein phosphatases in human erythrocyte cytosol.. Journal of Biological Chemistry. 258(17). 10455–10463. 46 indexed citations
16.
Usui, Hirofumi, et al.. (1982). A Survey of Multiple Phosphoprotein Phosphatases in Cytosols from Rat Tissues and Erythrocytes1. The Journal of Biochemistry. 91(1). 177–190. 8 indexed citations
17.
Imazu, Michinori, et al.. (1981). Reconstitution of Urea-Dissociated Subunits of a Pig Heart Phosphoprotein Phosphatase1. The Journal of Biochemistry. 90(3). 851–862. 10 indexed citations
18.
Imaoka, Teiji, et al.. (1980). Isolation of an inactive component from pig heart phosphoprotein phosphatase and its reassociation with an active component. Biochimica et Biophysica Acta (BBA) - Enzymology. 612(1). 73–84. 14 indexed citations
19.
Usui, Hirofumi, Michinori Imazu, Teiji Imaoka, & Masao Takeda. (1978). Effects of polyamine hydrochlorides and salts on phosphoprotein phosphatase. Biochimica et Biophysica Acta (BBA) - Enzymology. 526(1). 163–173. 8 indexed citations
20.
Imazu, Michinori, Teiji Imaoka, Hirofumi Usui, & Masao Takeda. (1978). Dissociation and reassociation of a pig heart phosphoprotein phosphatase. Biochemical and Biophysical Research Communications. 84(3). 777–785. 12 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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