Ulrike Johnsen

822 total citations
27 papers, 653 citations indexed

About

Ulrike Johnsen is a scholar working on Materials Chemistry, Biochemistry and Molecular Biology. According to data from OpenAlex, Ulrike Johnsen has authored 27 papers receiving a total of 653 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Materials Chemistry, 18 papers in Biochemistry and 11 papers in Molecular Biology. Recurrent topics in Ulrike Johnsen's work include Enzyme Structure and Function (21 papers), Amino Acid Enzymes and Metabolism (18 papers) and Diet, Metabolism, and Disease (6 papers). Ulrike Johnsen is often cited by papers focused on Enzyme Structure and Function (21 papers), Amino Acid Enzymes and Metabolism (18 papers) and Diet, Metabolism, and Disease (6 papers). Ulrike Johnsen collaborates with scholars based in Germany, United States and United Kingdom. Ulrike Johnsen's co-authors include Peter Schönheit, Uwe Sauer, Tobias Fuhrer, Jörg Soppa, Martina Selig, Karina B. Xavier, Helena Santos, Peter Sch�nheit, Michael J. Danson and Thomas Hansen and has published in prestigious journals such as Journal of Biological Chemistry, Biochemistry and Journal of Bacteriology.

In The Last Decade

Ulrike Johnsen

27 papers receiving 646 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ulrike Johnsen Germany 15 404 280 176 131 105 27 653
Dominik Esser Germany 11 425 1.1× 158 0.6× 56 0.3× 46 0.4× 95 0.9× 13 534
Susanne Bowien Germany 9 549 1.4× 65 0.2× 38 0.2× 188 1.4× 124 1.2× 9 660
Sei‐Heon Jang South Korea 16 658 1.6× 104 0.4× 37 0.2× 81 0.6× 50 0.5× 44 777
Mario Klimacek Austria 18 643 1.6× 151 0.5× 136 0.8× 343 2.6× 13 0.1× 46 846
Gazi Sakir Hossain China 13 495 1.2× 88 0.3× 146 0.8× 126 1.0× 20 0.2× 19 624
N. Arfman Netherlands 15 606 1.5× 128 0.5× 146 0.8× 152 1.2× 56 0.5× 19 708
Daniel P. Zimmer United States 9 588 1.5× 32 0.1× 51 0.3× 62 0.5× 125 1.2× 20 820
Alexander S. Reshetnikov Russia 8 289 0.7× 76 0.3× 47 0.3× 58 0.4× 67 0.6× 15 359
V. Yu. Kotova Russia 11 303 0.8× 49 0.2× 95 0.5× 60 0.5× 69 0.7× 34 507
W O Barnell United States 7 270 0.7× 58 0.2× 53 0.3× 90 0.7× 25 0.2× 7 344

Countries citing papers authored by Ulrike Johnsen

Since Specialization
Citations

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

Fields of papers citing papers by Ulrike Johnsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ulrike Johnsen

This figure shows the co-authorship network connecting the top 25 collaborators of Ulrike Johnsen. A scholar is included among the top collaborators of Ulrike Johnsen 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 Ulrike Johnsen. Ulrike Johnsen 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.
Johnsen, Ulrike, et al.. (2025). The early evolution of the glycolytic pathway from autotrophic origins to glycogen and back. FEMS Microbiology Reviews. 49. 1 indexed citations
2.
Johnsen, Ulrike, et al.. (2023). Discovery of a novel transcriptional regulator of sugar catabolism in archaea. Molecular Microbiology. 120(2). 224–240. 8 indexed citations
3.
Johnsen, Ulrike, et al.. (2021). Glucose Metabolism and Acetate Switch in Archaea: the Enzymes in Haloferax volcanii. Journal of Bacteriology. 203(8). 13 indexed citations
4.
5.
Johnsen, Ulrike, et al.. (2020). Pentose degradation in archaea: Halorhabdus species degrade D-xylose, L-arabinose and D-ribose via bacterial-type pathways. Extremophiles. 24(5). 759–772. 7 indexed citations
6.
Johnsen, Ulrike, et al.. (2020). D-galactose catabolism in archaea: operation of the DeLey–Doudoroff pathway in Haloferax volcanii. FEMS Microbiology Letters. 367(1). 11 indexed citations
7.
Johnsen, Ulrike, et al.. (2019). New views on an old enzyme: allosteric regulation and evolution of archaeal pyruvate kinases. FEBS Journal. 286(13). 2471–2489. 21 indexed citations
8.
Johnsen, Ulrike, et al.. (2019). Uptake of D-xylose and L-arabinose in Haloferax volcanii involves an ABC transporter of the CUT1 subfamily. FEMS Microbiology Letters. 366(8). 6 indexed citations
9.
Johnsen, Ulrike, et al.. (2019). l‐Rhamnose catabolism in archaea. Molecular Microbiology. 111(4). 1093–1108. 23 indexed citations
10.
Johnsen, Ulrike, et al.. (2017). Succinyl-CoA:Mesaconate CoA-Transferase and Mesaconyl-CoA Hydratase, Enzymes of the Methylaspartate Cycle in Haloarcula hispanica. Frontiers in Microbiology. 8. 1683–1683. 4 indexed citations
11.
Johnsen, Ulrike, et al.. (2017). Characterization of a pentonolactonase involved in D-xylose and L-arabinose catabolism in the haloarchaeon Haloferax volcanii. FEMS Microbiology Letters. 364(13). 14 indexed citations
12.
Johnsen, Ulrike, et al.. (2014). Identification and characterization of 2-keto-3-deoxygluconate kinase and 2-keto-3-deoxygalactonate kinase in the haloarchaeonHaloferax volcanii. FEMS Microbiology Letters. 361(1). 76–83. 9 indexed citations
13.
Johnsen, Ulrike, et al.. (2013). l-Arabinose degradation pathway in the haloarchaeon Haloferax volcanii involves a novel type of l-arabinose dehydrogenase. Extremophiles. 17(6). 897–909. 33 indexed citations
14.
Solomons, Julianna, Ulrike Johnsen, Peter Schönheit, & Christopher Davies. (2013). 3-Phosphoglycerate Is an Allosteric Activator of Pyruvate Kinase from the Hyperthermophilic Archaeon Pyrobaculum aerophilum. Biochemistry. 52(34). 5865–5875. 13 indexed citations
15.
16.
Johnsen, Ulrike, Peter Schönheit, Tobias Fuhrer, et al.. (2010). Metabolism of Pentose Sugars in the Hyperthermophilic Archaea Sulfolobus solfataricus and Sulfolobus acidocaldarius. Journal of Biological Chemistry. 285(44). 33701–33709. 70 indexed citations
17.
Johnsen, Ulrike, et al.. (2009). d-Xylose Degradation Pathway in the Halophilic Archaeon Haloferax volcanii. Journal of Biological Chemistry. 284(40). 27290–27303. 82 indexed citations
18.
Johnsen, Ulrike & Peter Schönheit. (2007). Characterization of cofactor-dependent and cofactor-independent phosphoglycerate mutases from Archaea. Extremophiles. 11(5). 647–657. 21 indexed citations
19.
Johnsen, Ulrike, Thomas Hansen, & Peter Schönheit. (2003). Comparative Analysis of Pyruvate Kinases from the Hyperthermophilic Archaea Archaeoglobus fulgidus, Aeropyrum pernix, and Pyrobaculum aerophilum and the Hyperthermophilic Bacterium Thermotoga maritima. Journal of Biological Chemistry. 278(28). 25417–25427. 32 indexed citations
20.
Johnsen, Ulrike, Martina Selig, Karina B. Xavier, Helena Santos, & Peter Sch�nheit. (2001). Different glycolytic pathways for glucose and fructose in the halophilic archaeon Halococcus saccharolyticus. Archives of Microbiology. 175(1). 52–61. 37 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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