P.J. Helmsing

596 total citations
15 papers, 465 citations indexed

About

P.J. Helmsing is a scholar working on Molecular Biology, Genetics and Biochemistry. According to data from OpenAlex, P.J. Helmsing has authored 15 papers receiving a total of 465 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Molecular Biology, 3 papers in Genetics and 2 papers in Biochemistry. Recurrent topics in P.J. Helmsing's work include Enzyme Catalysis and Immobilization (4 papers), Photosynthetic Processes and Mechanisms (3 papers) and Genomics and Chromatin Dynamics (3 papers). P.J. Helmsing is often cited by papers focused on Enzyme Catalysis and Immobilization (4 papers), Photosynthetic Processes and Mechanisms (3 papers) and Genomics and Chromatin Dynamics (3 papers). P.J. Helmsing collaborates with scholars based in Netherlands. P.J. Helmsing's co-authors include Michael Ashburner, Michael E. Lewis, H. D. Berendes, J. F. G. M. Wintermans, Jean‐Marc Collard, Conchita Alonso, Jan Derksen, H.J. Leenders, Jacob van der Woude and G. W. M. Barendse and has published in prestigious journals such as Proceedings of the National Academy of Sciences, The Journal of Cell Biology and Journal of Chromatography A.

In The Last Decade

P.J. Helmsing

15 papers receiving 409 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
P.J. Helmsing Netherlands 12 388 77 70 61 58 15 465
S Benkö Hungary 8 420 1.1× 75 1.0× 30 0.4× 92 1.5× 50 0.9× 19 569
Günter von Ehrenstein Germany 14 709 1.8× 18 0.2× 62 0.9× 47 0.8× 21 0.4× 17 1.1k
H.B. LéJohn Canada 19 540 1.4× 187 2.4× 37 0.5× 218 3.6× 15 0.3× 48 884
Joseph T. Holden United States 15 396 1.0× 161 2.1× 27 0.4× 34 0.6× 6 0.1× 32 592
Elizabeth M. Hallberg United States 10 1.0k 2.6× 14 0.2× 73 1.0× 49 0.8× 119 2.1× 12 1.1k
Makio Kitada Japan 10 319 0.8× 19 0.2× 78 1.1× 96 1.6× 7 0.1× 21 507
Matthew A. Harmey Ireland 14 591 1.5× 57 0.7× 20 0.3× 149 2.4× 7 0.1× 40 715
Karin Schott Germany 13 426 1.1× 56 0.7× 34 0.5× 70 1.1× 5 0.1× 19 576
J. F. Jackson Australia 11 403 1.0× 42 0.5× 54 0.8× 73 1.2× 5 0.1× 16 602
Dagmar Preis Germany 8 561 1.4× 40 0.5× 33 0.5× 55 0.9× 4 0.1× 8 769

Countries citing papers authored by P.J. Helmsing

Since Specialization
Citations

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

Fields of papers citing papers by P.J. Helmsing

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P.J. Helmsing. 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 P.J. Helmsing. The network helps show where P.J. Helmsing may publish in the future.

Co-authorship network of co-authors of P.J. Helmsing

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

All Works

15 of 15 papers shown
1.
Helmsing, P.J., et al.. (1980). An outbreak of hepatitis a in an institution for the mentally retarded. Journal of Medical Virology. 5(2). 143–150. 7 indexed citations
2.
Helmsing, P.J., et al.. (1978). A micromethod for simultaneous estimation of blood levels of some commonly used antiepileptic drugs. Clinica Chimica Acta. 89(2). 301–309. 12 indexed citations
3.
Lewis, Michael E., P.J. Helmsing, & Michael Ashburner. (1975). Parallel changes in puffing activity and patterns of protein synthesis in salivary glands of Drosophila.. Proceedings of the National Academy of Sciences. 72(9). 3604–3608. 154 indexed citations
4.
Berendes, H. D., Conchita Alonso, P.J. Helmsing, H.J. Leenders, & Jan Derksen. (1974). Structure and Function in the Genome of Drosophila hydei. Cold Spring Harbor Symposia on Quantitative Biology. 38(0). 645–654. 29 indexed citations
5.
Helmsing, P.J., et al.. (1974). A comparative study of in situ hybridization procedures using cRNA applied to Drosophila hydei salivary gland chromosomes. Experimental Cell Research. 85(2). 383–390. 15 indexed citations
6.
Helmsing, P.J., et al.. (1973). Chromatin of Drosophila: Isolation and characterization of chromatin of two larval cell types. Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis. 308(1). 154–160. 12 indexed citations
7.
8.
Helmsing, P.J. & H. D. Berendes. (1971). INDUCED ACCUMULATION OF NONHISTONE PROTEINS IN POLYTENE NUCLEI OF DROSOPHILA HYDEI . The Journal of Cell Biology. 50(3). 893–896. 40 indexed citations
9.
Helmsing, P.J.. (1971). Isolation and partial characterization of the labeled product from polytene nuclei incubated in vitro with amino acids. Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis. 232(4). 733–735. 10 indexed citations
10.
Helmsing, P.J.. (1970). Protein synthesis of polytene nuclei in vitro. Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis. 224(2). 579–587. 19 indexed citations
11.
Helmsing, P.J. & G. W. M. Barendse. (1970). INCORPORATION OF UDP-GALACTOSE-14C BY SPINACH CHLOROPLASTS. Acta Botanica Neerlandica. 19(4). 567–571. 4 indexed citations
12.
Helmsing, P.J.. (1969). Purification and properties of galactolipase. Biochimica et Biophysica Acta (BBA) - Enzymology. 178(3). 519–533. 48 indexed citations
13.
Wintermans, J. F. G. M., et al.. (1969). Galactolipid transformations and photochemical activities of spinach chloroplasts. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 189(1). 95–105. 49 indexed citations
14.
Helmsing, P.J.. (1967). Isolation and separation of mono- and digalactosyldiglycerides from spinach leaves with Sephadex LH-20. Journal of Chromatography A. 28(1). 131–132. 12 indexed citations
15.
Helmsing, P.J.. (1967). Hydrolysis of galactolipids by enzymes in spinach leaves. Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism. 144(2). 470–472. 34 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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