James E. Knapp

990 total citations
22 papers, 801 citations indexed

About

James E. Knapp is a scholar working on Cell Biology, Molecular Biology and Physiology. According to data from OpenAlex, James E. Knapp has authored 22 papers receiving a total of 801 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Cell Biology, 12 papers in Molecular Biology and 9 papers in Physiology. Recurrent topics in James E. Knapp's work include Hemoglobin structure and function (14 papers), Erythrocyte Function and Pathophysiology (9 papers) and Protein Structure and Dynamics (5 papers). James E. Knapp is often cited by papers focused on Hemoglobin structure and function (14 papers), Erythrocyte Function and Pathophysiology (9 papers) and Protein Structure and Dynamics (5 papers). James E. Knapp collaborates with scholars based in United States, Switzerland and Australia. James E. Knapp's co-authors include William E. Royer, V. Šrajer, B. Bhyravbhatla, Reinhard Pahl, Marvin L. Hackert, S.R. Ernst, H. Heaslet, Quentin Gibson, Austen Riggs and Lester J. Reed and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and Journal of Molecular Biology.

In The Last Decade

James E. Knapp

22 papers receiving 797 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
James E. Knapp United States 17 554 474 187 153 79 22 801
Paola Vecchini Italy 20 647 1.2× 573 1.2× 206 1.1× 111 0.7× 112 1.4× 39 1.2k
Yi Dou United States 18 710 1.3× 810 1.7× 282 1.5× 96 0.6× 34 0.4× 21 1.1k
Margaret A. Daugherty United States 16 748 1.4× 303 0.6× 105 0.6× 284 1.9× 22 0.3× 23 961
Lawrence J. Parkhurst United States 23 1.0k 1.9× 541 1.1× 209 1.1× 91 0.6× 125 1.6× 59 1.4k
Ariki Matsuoka Japan 20 526 0.9× 642 1.4× 255 1.4× 33 0.2× 39 0.5× 34 870
James F. Deatherage United States 13 450 0.8× 288 0.6× 85 0.5× 80 0.5× 95 1.2× 14 653
Ernesto E. Di Iorio Switzerland 16 570 1.0× 440 0.9× 203 1.1× 96 0.6× 31 0.4× 35 918
Oscar H. Kapp United States 18 541 1.0× 808 1.7× 175 0.9× 36 0.2× 122 1.5× 43 1.0k
Marc V. Thorsteinsson United States 18 691 1.2× 558 1.2× 82 0.4× 70 0.5× 58 0.7× 22 932
Christopher J. Falzone United States 19 787 1.4× 400 0.8× 81 0.4× 200 1.3× 22 0.3× 30 934

Countries citing papers authored by James E. Knapp

Since Specialization
Citations

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

Fields of papers citing papers by James E. Knapp

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James E. Knapp. 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 James E. Knapp. The network helps show where James E. Knapp may publish in the future.

Co-authorship network of co-authors of James E. Knapp

This figure shows the co-authorship network connecting the top 25 collaborators of James E. Knapp. A scholar is included among the top collaborators of James E. Knapp 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 James E. Knapp. James E. Knapp 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.
Knapp, James E., Levani Zandarashvili, Alexandre Esadze, et al.. (2021). Signal Transmission in Escherichia coli Cyclic AMP Receptor Protein for Survival in Extreme Acidic Conditions. Biochemistry. 60(40). 2987–3006. 2 indexed citations
2.
Ren, Zhong, V. Šrajer, James E. Knapp, & William E. Royer. (2011). Cooperative macromolecular device revealed by meta-analysis of static and time-resolved structures. Proceedings of the National Academy of Sciences. 109(1). 107–112. 37 indexed citations
3.
Knapp, James E., Reinhard Pahl, Jordi Cohen, et al.. (2009). Ligand Migration and Cavities within Scapharca Dimeric HbI: Studies by Time-Resolved Crystallo- graphy, Xe Binding, and Computational Analysis. Structure. 17(11). 1494–1504. 54 indexed citations
4.
Rana, Mitra S., James E. Knapp, Robert A.B. Holland, & Austen Riggs. (2007). Component D of chicken hemoglobin and the hemoglobin of the embryonic Tammar wallaby (Macropus eugenii) self‐associate upon deoxygenation: Effect on oxygen binding. Proteins Structure Function and Bioinformatics. 70(2). 553–561. 6 indexed citations
5.
Nienhaus, Karin, James E. Knapp, Pasquale Palladino, William E. Royer, & G. Ulrich Nienhaus. (2007). Ligand Migration and Binding in the Dimeric Hemoglobin ofScapharca inaequivalvis,. Biochemistry. 46(49). 14018–14031. 30 indexed citations
6.
Royer, William E., et al.. (2006). Low Resolution Crystal Structure of Arenicola Erythrocruorin: Influence of Coiled Coils on the Architecture of a Megadalton Respiratory Protein. Journal of Molecular Biology. 365(1). 226–236. 25 indexed citations
7.
Qin, Jun, Kenzo Fushitani, Sandra Susan Smith, et al.. (2006). Linker chains of the gigantic hemoglobin of the earthworm Lumbricus terrestris: Primary structures of linkers L2, L3, and L4 and analysis of the connectivity of the disulfide bonds in linker L1. Proteins Structure Function and Bioinformatics. 63(1). 174–187. 14 indexed citations
8.
Royer, William E., et al.. (2006). Lumbricus Erythrocruorin at 3.5 Å Resolution: Architecture of a Megadalton Respiratory Complex. Structure. 14(7). 1167–1177. 81 indexed citations
9.
Royer, William E., Hao Zhu, Thomas A. Gorr, Jason F. Flores, & James E. Knapp. (2005). Allosteric Hemoglobin Assembly: Diversity and Similarity. Journal of Biological Chemistry. 280(30). 27477–27480. 59 indexed citations
10.
Knapp, James E., Michele A. Bonham, Quentin Gibson, Jeffry C. Nichols, & William E. Royer. (2005). Residue F4 Plays a Key Role in Modulating Oxygen Affinity and Cooperativity in Scapharca Dimeric Hemoglobin. Biochemistry. 44(44). 14419–14430. 30 indexed citations
11.
Knapp, James E., et al.. (2004). Crystal Structure of the Hemoglobin Dodecamer from Lumbricus Erythrocruorin: Allosteric Core of Giant Annelid Respiratory Complexes. Journal of Molecular Biology. 344(1). 119–134. 53 indexed citations
12.
Bennett, Eric J., et al.. (2003). Catalytic Implications from the Drosophila Protein l-Isoaspartyl Methyltransferase Structure and Site-Directed Mutagenesis,. Biochemistry. 42(44). 12844–12853. 17 indexed citations
13.
Knapp, James E., V. Šrajer, Reinhard Pahl, & William E. Royer. (2003). Immobilization of Scapharca HbI crystals improves data quality in time-resolved crystallographic experiments. Micron. 35(1-2). 107–108. 8 indexed citations
14.
Knapp, James E. & William E. Royer. (2003). Ligand-Linked Structural Transitions in Crystals of a Cooperative Dimeric Hemoglobin. Biochemistry. 42(16). 4640–4647. 20 indexed citations
15.
Royer, William E., et al.. (2001). Cooperative hemoglobins: conserved fold, diverse quaternary assemblies and allosteric mechanisms. Trends in Biochemical Sciences. 26(5). 297–304. 85 indexed citations
16.
17.
18.
Knapp, James E., et al.. (2000). Lamprey Hemoglobin. Journal of Biological Chemistry. 275(18). 13517–13528. 28 indexed citations
19.
Knapp, James E., Marcos Antônio de Oliveira, Qiang Xie, et al.. (1999). The Structural and Functional Analysis of the Hemoglobin D Component from Chicken. Journal of Biological Chemistry. 274(10). 6411–6420. 53 indexed citations
20.
Knapp, James E., et al.. (1998). Crystal structure of the truncated cubic core component of the Escherichia coli 2-oxoglutarate dehydrogenase multienzyme complex. Journal of Molecular Biology. 280(4). 655–668. 61 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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