Ansgar B. Siemer

4.2k total citations · 2 hit papers
33 papers, 3.4k citations indexed

About

Ansgar B. Siemer is a scholar working on Molecular Biology, Physiology and Spectroscopy. According to data from OpenAlex, Ansgar B. Siemer has authored 33 papers receiving a total of 3.4k indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Molecular Biology, 11 papers in Physiology and 11 papers in Spectroscopy. Recurrent topics in Ansgar B. Siemer's work include Alzheimer's disease research and treatments (11 papers), Advanced NMR Techniques and Applications (11 papers) and Prion Diseases and Protein Misfolding (9 papers). Ansgar B. Siemer is often cited by papers focused on Alzheimer's disease research and treatments (11 papers), Advanced NMR Techniques and Applications (11 papers) and Prion Diseases and Protein Misfolding (9 papers). Ansgar B. Siemer collaborates with scholars based in United States, Switzerland and France. Ansgar B. Siemer's co-authors include Beat H. Meier, Roland Riek, Ann E. McDermott, Adam Lange, Christian Wasmer, Hélène Van Melckebeke, Jixi Li, Hao Wu, Christiane Ritter and Matthias Ernst and has published in prestigious journals such as Nature, Science and Cell.

In The Last Decade

Ansgar B. Siemer

33 papers receiving 3.4k citations

Hit Papers

align trajectories sort by overperformance

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.

The RIP1/RIP3 Necrosome Forms a Functional Amyloid Signaling Complex Required for Programmed Necrosis

2012 947 citations Ansgar B. Siemer, Ann E. McDermott et al. profile →
Amyloid Fibrils of the HET-s(218–289) Prion Form a β Solenoid with a Triangular Hydrophobic Core

2008 838 citations Ansgar B. Siemer, Roland Riek et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ansgar B. Siemer United States	21	2.3k	918	900	586	411	33	3.4k
John Christodoulou United Kingdom	39	3.7k 1.6×	1.0k 1.1×	505 0.6×	922 1.6×	222 0.5×	111	5.5k
Christiane Ritter Germany	21	2.2k 0.9×	1.8k 2.0×	564 0.6×	403 0.7×	123 0.3×	35	3.3k
Neil A. Farrow United States	30	3.8k 1.6×	264 0.3×	849 0.9×	1.1k 1.9×	317 0.8×	51	5.6k
Torleif Härd Sweden	42	4.3k 1.9×	1.4k 1.5×	424 0.5×	636 1.1×	353 0.9×	111	5.8k
Karin Giller Germany	36	2.5k 1.1×	470 0.5×	1.6k 1.8×	843 1.4×	88 0.2×	97	4.3k
Frans A. A. Mulder Denmark	38	4.1k 1.8×	405 0.4×	1.5k 1.7×	1.4k 2.3×	145 0.4×	109	5.4k
Christina Redfield United Kingdom	40	4.2k 1.8×	397 0.4×	1.0k 1.2×	1.8k 3.1×	289 0.7×	140	5.5k
Philipp Selenko Germany	31	3.1k 1.3×	405 0.4×	707 0.8×	819 1.4×	90 0.2×	46	4.2k
Jochen Balbach Germany	33	2.6k 1.1×	325 0.4×	412 0.5×	989 1.7×	201 0.5×	127	3.4k
Masaru Hoshino Japan	34	2.5k 1.1×	1.2k 1.3×	372 0.4×	716 1.2×	152 0.4×	86	3.7k

Countries citing papers authored by Ansgar B. Siemer

Since Specialization

Citations

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

Fields of papers citing papers by Ansgar B. Siemer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ansgar B. Siemer. 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 Ansgar B. Siemer. The network helps show where Ansgar B. Siemer may publish in the future.

Co-authorship network of co-authors of Ansgar B. Siemer

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

All Works

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20 of 20 papers shown

Siemer, Ansgar B., et al.. (2022). Calmodulin binds the N-terminus of the functional amyloid Orb2A inhibiting fibril formation. PLoS ONE. 17(1). e0259872–e0259872. 2 indexed citations

Siemer, Ansgar B.. (2022). What makes functional amyloids work?. Critical Reviews in Biochemistry and Molecular Biology. 57(4). 399–411. 6 indexed citations

Al‐Hilaly, Youssra K., Janet E. Rickard, Charles R. Harrington, et al.. (2022). Solid-state NMR of paired helical filaments formed by the core tau fragment tau(297-391). Frontiers in Neuroscience. 16. 988074–988074. 14 indexed citations

Rawat, Anoop, et al.. (2021). Droplet and fibril formation of the functional amyloid Orb2. Journal of Biological Chemistry. 297(1). 100804–100804. 13 indexed citations

Isas, J. Mario, Nitin Pandey, Hui Xu, et al.. (2021). Huntingtin fibrils with different toxicity, structure, and seeding potential can be interconverted. Nature Communications. 12(1). 4272–4272. 34 indexed citations

Varkey, Jobin, et al.. (2020). Structural Model of the Proline-Rich Domain of Huntingtin Exon-1 Fibrils. Biophysical Journal. 119(10). 2019–2028. 10 indexed citations

Siemer, Ansgar B.. (2020). Advances in studying protein disorder with solid-state NMR. Solid State Nuclear Magnetic Resonance. 106. 101643–101643. 32 indexed citations

Caulkins, Bethany G., et al.. (2018). Dynamics of the Proline-Rich C-Terminus of Huntingtin Exon-1 Fibrils. The Journal of Physical Chemistry B. 122(41). 9507–9515. 21 indexed citations

Siemer, Ansgar B., et al.. (2018). The Functional Amyloid Orb2A Interacts with Lipid Bilayers. Biophysical Journal. 114(3). 431a–431a. 1 indexed citations

10.

Beaugrand, Maïwenn, et al.. (2017). Metal Binding Properties of the N-Terminus of the Functional Amyloid Orb2. Biomolecules. 7(3). 57–57. 5 indexed citations

11.

Isas, J. Mario, et al.. (2017). Formation and Structure of Wild Type Huntingtin Exon-1 Fibrils. Biochemistry. 56(28). 3579–3586. 24 indexed citations

12.

Siemer, Ansgar B., et al.. (2016). Dynamic domains of amyloid fibrils can be site-specifically assigned with proton detected 3D NMR spectroscopy. Journal of Biomolecular NMR. 66(3). 159–162. 10 indexed citations

13.

Siemer, Ansgar B., Kuo‐Ying Huang, & Ann E. McDermott. (2010). Protein–ice interaction of an antifreeze protein observed with solid-state NMR. Proceedings of the National Academy of Sciences. 107(41). 17580–17585. 52 indexed citations

14.

Eichelbaum, Maik, Ansgar B. Siemer, Robert J. Farrauto, & Marco J. Castaldi. (2010). The impact of urea on the performance of metal-exchanged zeolites for the selective catalytic reduction of NO —Part II. Catalytic, FTIR, and NMR studies. Applied Catalysis B: Environmental. 97(1-2). 98–107. 33 indexed citations

15.

Verel, René, Theofanis Manolikas, Ansgar B. Siemer, & Beat H. Meier. (2006). Improved resolution in 13C solid-state spectra through spin-state-selection. Journal of Magnetic Resonance. 184(2). 322–329. 22 indexed citations

16.

Siemer, Ansgar B., Christiane Ritter, Michel O. Steinmetz, et al.. (2006). 13C, 15N Resonance Assignment of Parts of the HET-s Prion Protein in its Amyloid Form. Journal of Biomolecular NMR. 34(2). 75–87. 81 indexed citations

17.

Siemer, Ansgar B., Alexandre A. Arnold, Christiane Ritter, et al.. (2006). Observation of Highly Flexible Residues in Amyloid Fibrils of the HET-s Prion. Journal of the American Chemical Society. 128(40). 13224–13228. 108 indexed citations

18.

Ritter, Christiane, Marie‐Lise Maddelein, Ansgar B. Siemer, et al.. (2005). Correlation of structural elements and infectivity of the HET-s prion. HAL (Le Centre pour la Communication Scientifique Directe). 1 indexed citations

19.

Ritter, Christiane, Marie‐Lise Maddelein, Ansgar B. Siemer, et al.. (2005). Correlation of structural elements and infectivity of the HET-s prion. Nature. 435(7043). 844–848. 376 indexed citations

20.

Gast, Klaus, et al.. (2001). Fluoroalcohol-induced structural changes of proteins: some aspects of cosolvent-protein interactions. European Biophysics Journal. 30(4). 273–283. 94 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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