John A. Karas

1.8k total citations
52 papers, 1.2k citations indexed

About

John A. Karas is a scholar working on Molecular Biology, Organic Chemistry and Pharmacology. According to data from OpenAlex, John A. Karas has authored 52 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Molecular Biology, 10 papers in Organic Chemistry and 8 papers in Pharmacology. Recurrent topics in John A. Karas's work include Chemical Synthesis and Analysis (18 papers), Click Chemistry and Applications (8 papers) and Radiopharmaceutical Chemistry and Applications (6 papers). John A. Karas is often cited by papers focused on Chemical Synthesis and Analysis (18 papers), Click Chemistry and Applications (8 papers) and Radiopharmaceutical Chemistry and Applications (6 papers). John A. Karas collaborates with scholars based in Australia, United States and United Kingdom. John A. Karas's co-authors include Denis B. Scanlon, John D. Wade, Mohammed Akhter Hossain, Paul S. Donnelly, Jonathan M. White, Jian Li, Tony Velkov, Frances Separovic, Michelle Ma and Maytham Hussein and has published in prestigious journals such as Chemical Reviews, Journal of the American Chemical Society and Advanced Materials.

In The Last Decade

John A. Karas

52 papers receiving 1.2k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
John A. Karas Australia	22	594	249	199	191	149	52	1.2k
T. Eric Ballard United States	24	924 1.6×	632 2.5×	108 0.5×	155 0.8×	215 1.4×	40	1.9k
Emilia Sikorska Poland	18	578 1.0×	152 0.6×	92 0.5×	184 1.0×	51 0.3×	76	1.1k
Xiaozhou Luo China	22	1.2k 2.1×	263 1.1×	217 1.1×	278 1.5×	145 1.0×	72	1.9k
Neeraj Kumar India	24	877 1.5×	353 1.4×	78 0.4×	159 0.8×	83 0.6×	72	1.6k
Gerardo Acosta Spain	21	749 1.3×	428 1.7×	70 0.4×	66 0.3×	139 0.9×	57	1.3k
Adam Opolski Poland	29	762 1.3×	793 3.2×	238 1.2×	543 2.8×	104 0.7×	117	2.5k
Carla Isernia Italy	25	1.2k 2.0×	296 1.2×	77 0.4×	181 0.9×	43 0.3×	100	1.9k
Zhaohui Sunny Zhou United States	29	1.6k 2.7×	237 1.0×	389 2.0×	207 1.1×	69 0.5×	67	2.2k
Francesco Angelucci Italy	25	1.0k 1.7×	289 1.2×	71 0.4×	212 1.1×	66 0.4×	92	1.9k
Jürgen Seibel Germany	31	1.5k 2.6×	628 2.5×	118 0.6×	75 0.4×	43 0.3×	103	3.0k

Countries citing papers authored by John A. Karas

Since Specialization

Citations

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

Fields of papers citing papers by John A. Karas

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John A. Karas

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Haugaard‐Kedström, Linda M., et al.. (2025). Backbone Protecting Groups for Enhanced Peptide and Protein Synthesis. Angewandte Chemie International Edition. 64(33). e202509939–e202509939. 1 indexed citations

Bhattacharjee, Pushpak, Melinda Y. Hardy, Jason A. Tye–Din, et al.. (2025). BASTA, a simple whole-blood assay for measuring β cell antigen–specific CD4 ⁺ T cell responses in type 1 diabetes. Science Translational Medicine. 17(790). eadt2124–eadt2124. 1 indexed citations

Bhattacharjee, Pushpak, Miha Pakusch, Eleonora Tresoldi, et al.. (2024). Proinsulin C-peptide is a major source of HLA-DQ8 restricted hybrid insulin peptides recognized by human islet-infiltrating CD4+ T cells. PNAS Nexus. 3(11). 2 indexed citations

Xu, Rong, Sukhvir Kaur Bhangu, Karly C. Sourris, et al.. (2023). An Engineered Nanosugar Enables Rapid and Sustained Glucose‐Responsive Insulin Delivery in Diabetic Mice. Advanced Materials. 35(21). e2210392–e2210392. 22 indexed citations

Xu, Rong, et al.. (2023). Semisynthesis of A6–A11 lactam insulin. Journal of Peptide Science. 30(2). e3542–e3542. 3 indexed citations

Karas, John A., et al.. (2021). Endosomal escape cell-penetrating peptides significantly enhance pharmacological effectiveness and CNS activity of systemically administered antisense oligonucleotides. International Journal of Pharmaceutics. 599. 120398–120398. 18 indexed citations

Lin, Qingqing, Haoyue Zhang, Zihan Shen, et al.. (2020). 1,3-Dichloroacetone: A Robust Reagent for Preparing Bicyclic Peptides. ACS Omega. 5(4). 1840–1850. 6 indexed citations

Karas, John A., Bradley J. Turner, & Fazel Shabanpoor. (2018). The Assembly of Fluorescently Labeled Peptide–Oligonucleotide Conjugates via Orthogonal Ligation Strategies. Methods in molecular biology. 355–363. 1 indexed citations

Karas, John A., Denis B. Scanlon, Briony E. Forbes, et al.. (2014). 2‐Nitroveratryl as a Photocleavable Thiol‐Protecting Group for Directed Disulfide Bond Formation in the Chemical Synthesis of Insulin. Chemistry - A European Journal. 20(31). 9549–9552. 56 indexed citations

10.

Safavi‐Hemami, Helena, Dhana G. Gorasia, Andrew M. Steiner, et al.. (2012). Modulation of Conotoxin Structure and Function Is Achieved through a Multienzyme Complex in the Venom Glands of Cone Snails. Journal of Biological Chemistry. 287(41). 34288–34303. 38 indexed citations

11.

Griffin, Michael D. W., Andrew Hung, Nevena Todorova, et al.. (2012). A Cyclic Peptide Inhibitor of ApoC-II Peptide Fibril Formation: Mechanistic Insight from NMR and Molecular Dynamics Analysis. Journal of Molecular Biology. 416(5). 642–655. 17 indexed citations

12.

Ma, Michelle, Oliver Neels, Delphine Denoyer, et al.. (2011). Gallium-68 Complex of a Macrobicyclic Cage Amine Chelator Tethered to Two Integrin-Targeting Peptides for Diagnostic Tumor Imaging. Bioconjugate Chemistry. 22(10). 2093–2103. 44 indexed citations

13.

Safavi‐Hemami, Helena, Zhihe Kuang, Nicholas A. Williamson, et al.. (2011). Embryonic Toxin Expression in the Cone Snail Conus victoriae. Journal of Biological Chemistry. 286(25). 22546–22557. 25 indexed citations

14.

Todorova, Nevena, Andrew Hung, Michael D. W. Griffin, et al.. (2010). Effects of mutation on the amyloidogenic propensity of apolipoprotein C-II60–70 peptide. Physical Chemistry Chemical Physics. 12(44). 14762–14762. 13 indexed citations

15.

Paterson, Brett M., John A. Karas, Denis B. Scanlon, Jonathan M. White, & Paul S. Donnelly. (2010). Versatile New Bis(thiosemicarbazone) Bifunctional Chelators: Synthesis, Conjugation to Bombesin(7−14)-NH₂, and Copper-64 Radiolabeling. Inorganic Chemistry. 49(4). 1884–1893. 71 indexed citations

16.

Ma, Michelle, John A. Karas, Jonathan M. White, Denis B. Scanlon, & Paul S. Donnelly. (2009). A new bifunctional chelator for copper radiopharmaceuticals: a cage amine ligand with a carboxylate functional group for conjugation to peptides. Chemical Communications. 3237–3237. 50 indexed citations

17.

Kok, W. Mei, Denis B. Scanlon, John A. Karas, et al.. (2009). Solid-phase synthesis of homodimeric peptides: preparation of covalently-linked dimers of amyloid β peptide. Chemical Communications. 6228–6228. 39 indexed citations

18.

Harris, Karen S., Joanne L. Casey, Andrew M. Coley, et al.. (2009). Rapid Optimization of a Peptide Inhibitor of Malaria Parasite Invasion by Comprehensive N-Methyl Scanning. Journal of Biological Chemistry. 284(14). 9361–9371. 49 indexed citations

19.

Roelants, Kim, Klaus Winter, Wayne C. Hodgson, et al.. (2009). Novel Venom Proteins Produced by Differential Domain-Expression Strategies in Beaded Lizards and Gila Monsters (genus Heloderma). Molecular Biology and Evolution. 27(2). 395–407. 66 indexed citations

20.

James, Patrick F., Con Dogovski, Renwick C. J. Dobson, et al.. (2008). Aromatic residues in the C-terminal helix of human apoC-I mediate phospholipid interactions and particle morphology. Journal of Lipid Research. 50(7). 1384–1394. 13 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.

Explore authors with similar magnitude of impact