John Sjöquist

8.6k total citations · 4 hit papers
130 papers, 7.2k citations indexed

About

John Sjöquist is a scholar working on Molecular Biology, Radiology, Nuclear Medicine and Imaging and Immunology. According to data from OpenAlex, John Sjöquist has authored 130 papers receiving a total of 7.2k indexed citations (citations by other indexed papers that have themselves been cited), including 75 papers in Molecular Biology, 58 papers in Radiology, Nuclear Medicine and Imaging and 41 papers in Immunology. Recurrent topics in John Sjöquist's work include Monoclonal and Polyclonal Antibodies Research (58 papers), Glycosylation and Glycoproteins Research (27 papers) and Biochemical and Structural Characterization (24 papers). John Sjöquist is often cited by papers focused on Monoclonal and Polyclonal Antibodies Research (58 papers), Glycosylation and Glycoproteins Research (27 papers) and Biochemical and Structural Characterization (24 papers). John Sjöquist collaborates with scholars based in Sweden, Romania and United States. John Sjöquist's co-authors include Arne Forsgren, Hans Hjelm, Katarina Hjelm, Victor Gheţie, Gunnemar Stålenheim, Roger Lindmark, Jan‐Olof Jeppsson, Kerstin Thoreń‐Tolling, Anders Larsson and Jörgen Sjödahl and has published in prestigious journals such as Nature, Proceedings of the National Academy of Sciences and The Lancet.

In The Last Decade

John Sjöquist

130 papers receiving 6.3k citations

Hit Papers

"Protein A" from S. aureus. I. Pseudo-immune reaction wit... 1956 2026 1979 2002 1966 1966 1972 1956 250 500 750
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.

  1. "Protein A" from S. aureus. I. Pseudo-immune reaction with human gamma-globulin.
    1966 907 citations Arne Forsgren, John Sjöquist PubMed profile →
  2. “Protein A” from S. Aureus
    1966 555 citations Arne Forsgren, John Sjöquist The Journal of Immunology profile →
  3. Protein a from Staphylococcus aureus. Its isolation by affinity chromatography and its use as an immunosorbent for isolation of immunoglobulins
    1972 536 citations Hans Hjelm, John Sjöquist et al. profile →
  4. Identification and Semiquantitative Determination of Phenyl Thiohydantoins.
    1956 290 citations John Sjöquist et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John Sjöquist Sweden 39 4.1k 2.3k 1.6k 1.1k 542 130 7.2k
Hervé Bazin Belgium 56 3.6k 0.9× 2.5k 1.1× 4.2k 2.6× 749 0.7× 461 0.9× 376 10.9k
E.A. Stura France 52 5.2k 1.3× 2.0k 0.9× 2.5k 1.5× 833 0.7× 582 1.1× 172 10.4k
Thérèse Ternynck France 32 2.7k 0.7× 2.0k 0.9× 2.1k 1.3× 304 0.3× 242 0.4× 81 6.6k
Kenneth H. Roux United States 48 3.2k 0.8× 1.9k 0.8× 2.7k 1.7× 913 0.8× 347 0.6× 152 9.2k
Thomas P. Hopp United States 25 4.6k 1.1× 1.4k 0.6× 2.7k 1.7× 407 0.4× 245 0.5× 36 8.3k
Sten Hammarström Sweden 50 3.4k 0.8× 1.5k 0.7× 3.2k 2.0× 380 0.3× 265 0.5× 177 8.6k
H. Mario Geysen Australia 41 3.6k 0.9× 2.5k 1.1× 1.5k 0.9× 463 0.4× 363 0.7× 87 7.1k
Carl R. Alving United States 59 4.4k 1.1× 1.4k 0.6× 4.4k 2.7× 1.3k 1.1× 1.1k 2.0× 261 10.7k
Gregg J. Silverman United States 51 2.9k 0.7× 2.4k 1.1× 6.5k 4.0× 1.0k 0.9× 294 0.5× 191 10.9k
Michael W. Fanger United States 42 1.7k 0.4× 1.5k 0.7× 2.9k 1.8× 363 0.3× 354 0.7× 124 5.7k

Countries citing papers authored by John Sjöquist

Since Specialization
Citations

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

Fields of papers citing papers by John Sjöquist

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John Sjöquist

This figure shows the co-authorship network connecting the top 25 collaborators of John Sjöquist. A scholar is included among the top collaborators of John Sjöquist 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 John Sjöquist. John Sjöquist 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.
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Larsson, Anders & John Sjöquist. (1989). Binding of complement components C1q, C3, C4 and C5 to a model immune complex in ELISA. Journal of Immunological Methods. 119(1). 103–109. 21 indexed citations
3.
Larsson, Anders & John Sjöquist. (1988). Chicken antibodies: a tool to avoid false positive results by rheumatoid factor in latex fixation tests. Journal of Immunological Methods. 108(1-2). 205–208. 60 indexed citations
4.
Nardella, F A, Eric H. Sasso, Mart Mannik, et al.. (1988). Fc Epitopes for Human Rheumatoid Factors and the Relationships of Rheumatoid Factors to the Fc Binding Proteins of Microorganisms. Scandinavian Journal of Rheumatology. 17(sup75). 190–198. 13 indexed citations
5.
Gheţie, Victor, et al.. (1986). Modulation of IgG effector functions by a monovalent fragment of staphylococcal protein A. Molecular Immunology. 23(4). 377–384. 3 indexed citations
6.
Guss, Bengt, Karen Leander, Ulf Hellman, et al.. (1985). Analysis of protein A encoded by a mutated gene of Staphylococcus aureus Cowan I. European Journal of Biochemistry. 153(3). 579–585. 8 indexed citations
7.
Sjöquist, John, et al.. (1985). Mutual inhibition of the binding of Clq and protein A to rabbit IgG immune complexes. Molecular Immunology. 22(11). 1297–1302. 8 indexed citations
8.
Carlsson, R., Mikael Dohlsten, Åke Boketoft, John Sjöquist, & H O Sjögren. (1984). Staphylococcal protein A (SpA) does not induce production of interferon-γ in human mononuclear blood cells. Cellular Immunology. 86(1). 136–144. 24 indexed citations
9.
Yman, Ingrid Malmheden, et al.. (1982). The Effect of C4 on C1 Binding and Activation. Scandinavian Journal of Immunology. 15(6). 587–593. 3 indexed citations
10.
Gheţie, Victor, et al.. (1978). The Disappearance of SpA‐IgG Antibody Complex on ‘Armed’ Lymphoid and Macrophages Cells. Scandinavian Journal of Immunology. 7(4). 345–349. 5 indexed citations
11.
Gheţie, Victor, Kenneth Nilsson, & John Sjöquist. (1974). Detection and quantitation of IgG on the surface of human lymphoid cells by rosette formation with protein A‐coated sheep red blood cells. European Journal of Immunology. 4(7). 500–505. 64 indexed citations
12.
Sjöholm, Ingvar, et al.. (1973). Protein a from Staphylococcus Aureus. The Journal of Immunology. 110(6). 1562–1569. 24 indexed citations
13.
Sjöquist, John, et al.. (1972). Localization of Protein A in the Bacteria. European Journal of Biochemistry. 30(1). 190–194. 118 indexed citations
14.
Stålenheim, Gunnemar & John Sjöquist. (1970). Protein A from Staphylococcus aureus. X. Complement-fixing activity of complexes between protein A and myeloma IgG or papain fragments of IgG.. PubMed. 105(4). 944–8. 25 indexed citations
15.
Paradies, Hasko H. & John Sjöquist. (1970). Crystallographic Study of Valine tRNA from Yeast. Nature. 226(5241). 159–161. 9 indexed citations
16.
Forsgren, Arne & John Sjöquist. (1967). "Protein A" from Staphylococcus aureus. 3. Reaction with rabbit gamma-globulin.. PubMed. 99(1). 19–24. 129 indexed citations
17.
Sjöquist, John. (1966). Degradation of human γG-globulin with cyanogen bromide. Journal of Molecular Biology. 20(3). 537–543. 3 indexed citations
18.
19.
Sjöquist, John, et al.. (1964). Immunochemical Analysis of Staphylococcal Antigenic Preparations. International Archives of Allergy and Immunology. 24(4). 244–253. 5 indexed citations
20.
Sjöquist, John, Sten Eriksson, I M Nilsson, & Jan Waldenström. (1960). N-TERMINAL-AMINOACID PATTERN IN NORMAL AND PATHOLOGICAL HUMAN SERUM. The Lancet. 275(7130). 902–903. 2 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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