Karin Hammer

5.2k total citations
88 papers, 4.3k citations indexed

About

Karin Hammer is a scholar working on Molecular Biology, Ecology and Genetics. According to data from OpenAlex, Karin Hammer has authored 88 papers receiving a total of 4.3k indexed citations (citations by other indexed papers that have themselves been cited), including 76 papers in Molecular Biology, 34 papers in Ecology and 34 papers in Genetics. Recurrent topics in Karin Hammer's work include Bacteriophages and microbial interactions (34 papers), Bacterial Genetics and Biotechnology (34 papers) and Probiotics and Fermented Foods (28 papers). Karin Hammer is often cited by papers focused on Bacteriophages and microbial interactions (34 papers), Bacterial Genetics and Biotechnology (34 papers) and Probiotics and Fermented Foods (28 papers). Karin Hammer collaborates with scholars based in Denmark, France and United Kingdom. Karin Hammer's co-authors include Peter Ruhdal Jensen, Jan Martinussen, Mogens Kilstrup, Finn K. Vogensen, Lone Brøndsted, Gert Dandanell, Ivan Mijakovic̀, Margit Pedersen, Steven J. Jacobsen and Andrea Wilcks and has published in prestigious journals such as Nature, Cell and Proceedings of the National Academy of Sciences.

In The Last Decade

Karin Hammer

88 papers receiving 4.2k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Karin Hammer Denmark 36 3.3k 1.3k 1.3k 1.1k 386 88 4.3k
Fabrizio Arigoni Switzerland 28 2.5k 0.7× 1.5k 1.1× 962 0.8× 614 0.6× 955 2.5× 46 3.6k
Fernando C. Soncini Argentina 29 1.5k 0.4× 1.4k 1.1× 1.3k 1.0× 520 0.5× 694 1.8× 55 4.1k
S. Dusko Ehrlich France 44 4.7k 1.4× 2.0k 1.6× 2.9k 2.3× 1.7k 1.5× 646 1.7× 101 6.5k
Monique Zagorec France 42 2.8k 0.8× 2.9k 2.2× 770 0.6× 525 0.5× 727 1.9× 100 4.7k
Knut J. Heller Germany 41 3.1k 0.9× 1.8k 1.4× 1.1k 0.8× 1.9k 1.8× 678 1.8× 148 5.2k
Marcelo E. Tolmasky United States 40 2.4k 0.7× 534 0.4× 976 0.8× 954 0.9× 182 0.5× 151 6.0k
S. Dusko Ehrlich France 21 1.9k 0.6× 1.3k 1.0× 656 0.5× 398 0.4× 414 1.1× 31 2.6k
Alain Dufour France 32 1.8k 0.6× 485 0.4× 876 0.7× 620 0.6× 136 0.4× 67 2.8k
Stephen J. Libby United States 42 2.1k 0.6× 2.3k 1.8× 1.7k 1.4× 1.2k 1.1× 581 1.5× 68 5.8k
R. David Pridmore Switzerland 23 2.4k 0.7× 1.7k 1.3× 571 0.5× 442 0.4× 970 2.5× 29 3.6k

Countries citing papers authored by Karin Hammer

Since Specialization
Citations

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

Fields of papers citing papers by Karin Hammer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Karin Hammer

This figure shows the co-authorship network connecting the top 25 collaborators of Karin Hammer. A scholar is included among the top collaborators of Karin Hammer 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 Karin Hammer. Karin Hammer 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.
Hammer, Karin, et al.. (2021). Characterization of the genetic switch from phage ɸ13 important for Staphylococcus aureus colonization in humans. MicrobiologyOpen. 10(5). e1245–e1245. 2 indexed citations
2.
Rasmussen, Kim Krighaar, Andrés Palencia, Elisabetta Boeri Erba, et al.. (2020). Revealing the mechanism of repressor inactivation during switching of a temperate bacteriophage. Proceedings of the National Academy of Sciences. 117(34). 20576–20585. 7 indexed citations
3.
Pedersen, Margit, Kim Krighaar Rasmussen, Leila Lo Leggio, et al.. (2020). Repression of the lysogenic PR promoter in bacteriophage TP901-1 through binding of a CI-MOR complex to a composite OM-OR operator. Scientific Reports. 10(1). 8659–8659. 6 indexed citations
4.
Kot, Witold, Mogens Kilstrup, Finn K. Vogensen, & Karin Hammer. (2016). Clear Plaque Mutants of Lactococcal Phage TP901-1. PLoS ONE. 11(6). e0155233–e0155233. 3 indexed citations
5.
Rasmussen, Kim Krighaar, Kristian E. H. Frandsen, Elisabetta Boeri Erba, et al.. (2016). Structural and dynamics studies of a truncated variant of CI repressor from bacteriophage TP901-1. Scientific Reports. 6(1). 29574–29574. 12 indexed citations
6.
Singler, Katrin, Thomas Bertsch, Hans-Jürgen Heppner, et al.. (2013). Diagnostic accuracy of three different methods of temperature measurement in acutely ill geriatric patients. Age and Ageing. 42(6). 740–746. 22 indexed citations
7.
Pedersen, Margit, et al.. (2011). Key Players in the Genetic Switch of Bacteriophage TP901-1. Biophysical Journal. 100(2). 313–321. 8 indexed citations
8.
Feld, Louise, et al.. (2009). Characterization of a small erythromycin resistance plasmid pLFE1 from the food-isolate Lactobacillus plantarum M345. Plasmid. 61(3). 159–170. 34 indexed citations
9.
Pedersen, Margit & Karin Hammer. (2008). The Role of MOR and the CI Operator Sites on the Genetic Switch of the Temperate Bacteriophage TP901-1. Journal of Molecular Biology. 384(3). 577–589. 20 indexed citations
10.
11.
Hammer, Karin, et al.. (2006). Mutational analysis of the activator of late transcription, Alt, in the lactococcal bacteriophage TP901-1. Archives of Virology. 152(2). 305–320. 2 indexed citations
12.
Kilstrup, Mogens, et al.. (2005). Nucleotide metabolism and its control in lactic acid bacteria. FEMS Microbiology Reviews. 29(3). 555–590. 211 indexed citations
13.
Pedersen, Margit, Mogens Kilstrup, & Karin Hammer. (2005). Identification of DNA-binding sites for the activator involved in late transcription of the temperate lactococcal phage TP901-1. Virology. 345(2). 446–456. 6 indexed citations
14.
Roepstorff, Peter, et al.. (2003). Proteome analysis of the purine stimulon from Lactococcus lactis. PROTEOMICS. 3(5). 786–797. 35 indexed citations
15.
Willemoës, Martin, Mogens Kilstrup, Peter Roepstorff, & Karin Hammer. (2002). Proteome analysis of a Lactococcus lactis strain overexpressing gapA suggests that the gene product is an auxiliary glyceraldehyde 3-phosphate dehydrogenase. PROTEOMICS. 2(8). 1041–1041. 18 indexed citations
16.
Hansen, M. C., Allan K. Nielsen, Søren Molin, Karin Hammer, & Mogens Kilstrup. (2001). Changes in rRNA Levels during Stress Invalidates Results from mRNA Blotting: Fluorescence In Situ rRNA Hybridization Permits Renormalization for Estimation of Cellular mRNA Levels. Journal of Bacteriology. 183(16). 4747–4751. 58 indexed citations
17.
18.
Andersen, Heidi Winterberg, Martin Bastian Pedersen, Karin Hammer, & Peter Ruhdal Jensen. (2001). Lactate dehydrogenase has no control on lactate production but has a strong negative control on formate production in Lactococcus lactis. European Journal of Biochemistry. 268(24). 6379–6389. 50 indexed citations
19.
Kilstrup, Mogens & Karin Hammer. (2000). Short Communication: Salt Extends the Upper Temperature Limit for Growth of Lactococcus lactis ssp. cremoris on Solid M17 Medium. Journal of Dairy Science. 83(7). 1448–1450. 10 indexed citations
20.
Johnsen, Mads G., Horst Neve, Finn K. Vogensen, & Karin Hammer. (1995). Virion Positions and Relationships of Lactococcal Temperate Bacteriophage TP901-1 Proteins. Virology. 212(2). 595–606. 29 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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