Leon Heppel

8.3k total citations · 2 hit papers
72 papers, 6.3k citations indexed

About

Leon Heppel is a scholar working on Molecular Biology, Materials Chemistry and Physiology. According to data from OpenAlex, Leon Heppel has authored 72 papers receiving a total of 6.3k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Molecular Biology, 12 papers in Materials Chemistry and 11 papers in Physiology. Recurrent topics in Leon Heppel's work include Adenosine and Purinergic Signaling (11 papers), Biochemical and Molecular Research (10 papers) and Enzyme Structure and Function (10 papers). Leon Heppel is often cited by papers focused on Adenosine and Purinergic Signaling (11 papers), Biochemical and Molecular Research (10 papers) and Enzyme Structure and Function (10 papers). Leon Heppel collaborates with scholars based in United States, Israel and Canada. Leon Heppel's co-authors include Harold C. Neu, R.J. Hilmoe, Nancy G. Nossal, Edward A. Berger, Joël H. Weiner, Ning‐Na Huang, R W Brockman, D.R. Harkness, Paul C. Sternweis and Masamitsu Futai and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Leon Heppel

71 papers receiving 5.5k citations

Hit Papers

The Release of Enzymes fr... 1965 2026 1985 2005 1965 1966 400 800 1.2k
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. The Release of Enzymes from Escherichia coli by Osmotic Shock and during the Formation of Spheroplasts
    1965 1.3k citations Leon Heppel et al. Journal of Biological Chemistry profile →
  2. The Release of Enzymes by Osmotic Shock from Escherichia coli in Exponential Phase
    1966 609 citations Leon Heppel et al. Journal of Biological Chemistry profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Leon Heppel 4.4k 1.2k 721 651 603 72 6.3k
P Andrews 4.6k 1.0× 526 0.4× 852 1.2× 168 0.3× 717 1.2× 30 7.7k
Nicholas M. Kredich 3.0k 0.7× 717 0.6× 573 0.8× 341 0.5× 587 1.0× 75 4.5k
Nathan Brot 4.9k 1.1× 572 0.5× 386 0.5× 136 0.2× 982 1.6× 136 7.8k
Didier Vertommen 5.4k 1.2× 769 0.6× 394 0.5× 251 0.4× 451 0.7× 193 7.8k
Gakuzo Tamura 5.4k 1.2× 1.1k 0.9× 376 0.5× 97 0.1× 183 0.3× 345 8.7k
Ernst Freese 5.1k 1.2× 2.1k 1.7× 944 1.3× 61 0.1× 672 1.1× 151 7.8k
Luis Glaser 2.8k 0.6× 664 0.5× 503 0.7× 62 0.1× 426 0.7× 97 4.4k
Trond Berg 3.9k 0.9× 477 0.4× 156 0.2× 394 0.6× 376 0.6× 188 8.1k
Robert B. Freedman 5.4k 1.2× 488 0.4× 504 0.7× 243 0.4× 312 0.5× 198 8.2k
Yutaka Kawarabayasi 3.8k 0.9× 699 0.6× 816 1.1× 70 0.1× 358 0.6× 101 5.1k

Countries citing papers authored by Leon Heppel

Since Specialization
Citations

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

Fields of papers citing papers by Leon Heppel

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Leon Heppel

This figure shows the co-authorship network connecting the top 25 collaborators of Leon Heppel. A scholar is included among the top collaborators of Leon Heppel 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 Leon Heppel. Leon Heppel 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.
Heppel, Leon. (2004). Reminiscences of Leon A. Heppel. Journal of Biological Chemistry. 279(51). 52807–52811.
2.
Ahmed, Ahmed H. & Leon Heppel. (1997). Evidence for a role of G protein βγ subunits in the enhancement of cAMP accumulation and DNA synthesis by adenosine in human cells. Journal of Cellular Physiology. 170(3). 263–271. 4 indexed citations
3.
4.
Huang, Ning‐Na, et al.. (1992). Extracellular ATP and ADP stimulate proliferation of porcine aortic smooth muscle cells. Journal of Cellular Physiology. 153(2). 221–233. 121 indexed citations
5.
Huang, Ning‐Na, et al.. (1992). Extracellular ATP stimulates increases in pump activity, intracellular pH and uridine uptake in cultures of mammalian cells. Biochemical and Biophysical Research Communications. 182(2). 836–843. 14 indexed citations
6.
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Huang, Ning‐Na, et al.. (1990). Extracellular ATP shows synergistic enhancement of DNA synthesis when combined with agents that are active in wound healing or as neurotransmitters. Biochemical and Biophysical Research Communications. 166(1). 251–258. 85 indexed citations
9.
González, Fernando A., et al.. (1989). Two distinct receptors for ATP can be distinguished in Swiss 3T6 mouse fibroblasts by their desensitization. Biochemical and Biophysical Research Communications. 164(2). 706–713. 31 indexed citations
10.
González, Fernando A., et al.. (1989). Receptor specific for certain nucleotides stimulates inositol phosphate metabolism and Ca2+ fluxes in A431 cells. Journal of Cellular Physiology. 141(3). 606–617. 31 indexed citations
11.
Jean, Thierry, Leon Heppel, & Claude B. Klee. (1989). Evidence for a GTP-dependent increase in membrane permeability for calcium in NG108-15 microsomes. Biochemical and Biophysical Research Communications. 164(3). 1060–1068. 1 indexed citations
12.
González, Fernando A., David J. Gross, Leon Heppel, & Watt W. Webb. (1988). Studies on the increase in cytosolic free calcium induced by epidermal growth factor, serum, and nucleotides in individual A431 cells. Journal of Cellular Physiology. 135(2). 269–276. 61 indexed citations
13.
González, Fernando A., et al.. (1988). The rapid desensitization of receptors for platelet derived growth factor, bradykinin and ATP: Studies on individual cells using quantitative digital video fluorescence microscopy. Biochemical and Biophysical Research Communications. 151(3). 1205–1212. 24 indexed citations
14.
Heppel, Leon, Dianne L. Newton, Claude B. Klee, & Giulio Draetta. (1988). The phosphorylation of calmodulin and calmodulin fragments by kinase fractions from bovine brain. Biochimica et Biophysica Acta (BBA) - Molecular Cell Research. 972(1). 69–78. 4 indexed citations
15.
Sternberg, Zohara & Leon Heppel. (1987). A comparative study of permeabilization induced by extracellular ATP and by Sendai virus. Biochemical and Biophysical Research Communications. 148(2). 560–566. 3 indexed citations
16.
Heppel, Leon, et al.. (1978). Control of glycolysis and the pentose phosphate shunt in transformed 3T3 cultures rendered permeable by ATP. Journal of Cellular Physiology. 96(1). 87–93. 20 indexed citations
17.
Berger, Edward A. & Leon Heppel. (1972). A Binding Protein Involved in the Transport of Cystine and Diaminopimelic Acid in Escherichia coli. Journal of Biological Chemistry. 247(23). 7684–7694. 80 indexed citations
18.
Weiner, Joël H., Clement E. Furlong, & Leon Heppel. (1971). A binding protein for l-glutamine and its relation to active transport in E. coli. Archives of Biochemistry and Biophysics. 142(2). 715–717. 39 indexed citations
19.
Heppel, Leon. (1969). The Effect of Osmotic Shock on Release of Bacterial Proteins and on Active Transport. The Journal of General Physiology. 54(1). 95–113. 94 indexed citations
20.
Shuster, Louis, H. Gobind Khorana, & Leon Heppel. (1959). The mode of action of ryegrass ribonuclease. Biochimica et Biophysica Acta. 33(2). 452–461. 36 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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