Helmut Killmann

1.5k total citations
25 papers, 1.2k citations indexed

About

Helmut Killmann is a scholar working on Genetics, Molecular Biology and Ecology. According to data from OpenAlex, Helmut Killmann has authored 25 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Genetics, 14 papers in Molecular Biology and 10 papers in Ecology. Recurrent topics in Helmut Killmann's work include Bacterial Genetics and Biotechnology (22 papers), Bacteriophages and microbial interactions (10 papers) and Antibiotic Resistance in Bacteria (10 papers). Helmut Killmann is often cited by papers focused on Bacterial Genetics and Biotechnology (22 papers), Bacteriophages and microbial interactions (10 papers) and Antibiotic Resistance in Bacteria (10 papers). Helmut Killmann collaborates with scholars based in Germany. Helmut Killmann's co-authors include Volkmar Braun, V Braun, Michael H. Braun, Roland Benz, Christina Herrmann, Holger Pilsl, G. Jung, Heinz Schwarz, K. Kampfenkel and Sibylle Gaisser and has published in prestigious journals such as The EMBO Journal, Analytical Biochemistry and Trends in Biochemical Sciences.

In The Last Decade

Helmut Killmann

25 papers receiving 1.2k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Helmut Killmann Germany 19 682 654 291 199 172 25 1.2k
Sandra K. Armstrong United States 26 683 1.0× 640 1.0× 124 0.4× 155 0.8× 131 0.8× 48 1.5k
Timothy J. Brickman United States 25 698 1.0× 577 0.9× 118 0.4× 202 1.0× 109 0.6× 42 1.5k
Marta Almirón Argentina 11 1.1k 1.6× 821 1.3× 343 1.2× 151 0.8× 107 0.6× 13 1.8k
Joe Gray United Kingdom 24 800 1.2× 298 0.5× 215 0.7× 175 0.9× 132 0.8× 49 1.7k
Ranjan Chakraborty United States 8 488 0.7× 431 0.7× 85 0.3× 163 0.8× 135 0.8× 12 920
Daniel Vinella France 21 866 1.3× 629 1.0× 251 0.9× 83 0.4× 170 1.0× 29 1.5k
Travis J. Barnard United States 15 988 1.4× 831 1.3× 477 1.6× 176 0.9× 327 1.9× 17 1.9k
Anuradha Janakiraman United States 15 639 0.9× 679 1.0× 325 1.1× 98 0.5× 117 0.7× 20 1.3k
Ray A. Larsen United States 14 500 0.7× 469 0.7× 96 0.3× 166 0.8× 123 0.7× 27 877
Brian D. Corbin United States 10 754 1.1× 408 0.6× 222 0.8× 74 0.4× 110 0.6× 11 1.4k

Countries citing papers authored by Helmut Killmann

Since Specialization
Citations

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

Fields of papers citing papers by Helmut Killmann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Helmut Killmann

This figure shows the co-authorship network connecting the top 25 collaborators of Helmut Killmann. A scholar is included among the top collaborators of Helmut Killmann 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 Helmut Killmann. Helmut Killmann 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.
Braun, Volkmar, Michael H. Braun, & Helmut Killmann. (2005). Iron Transport In Escherichia coli. Kluwer Academic Publishers eBooks. 485. 33–43. 8 indexed citations
2.
Killmann, Helmut, et al.. (2004). A FhuA mutant ofEscherichia coliis infected by phage T1-independent of TonB. FEMS Microbiology Letters. 234(1). 133–137. 17 indexed citations
3.
Braun, Michael H., et al.. (2003). Mutant Analysis of the Escherichia coli FhuA Protein Reveals Sites of FhuA Activity. Journal of Bacteriology. 185(16). 4683–4692. 44 indexed citations
4.
Braun, Michael H., Helmut Killmann, Elke Maier, Roland Benz, & Volkmar Braun. (2002). Diffusion through channel derivatives of the Escherichia coli FhuA transport protein. European Journal of Biochemistry. 269(20). 4948–4959. 45 indexed citations
5.
6.
Killmann, Helmut, Christina Herrmann, Ayşe Nur Torun, Günther Jung, & Volkmar Braun. (2002). TonB of Escherichia coli activates FhuA through interaction with the β-barrel a aThe GenBank accession number for the sequence reported in this paper is Y15319.. Microbiology. 148(11). 3497–3509. 30 indexed citations
7.
Braun, Volkmar, et al.. (2001). Outer Membrane Channels and Active Transporters for the Uptake of Antibiotics. The Journal of Infectious Diseases. 183(s1). S12–S16. 12 indexed citations
8.
Braun, Volkmar & Helmut Killmann. (1999). Bacterial solutions to the iron-supply problem. Trends in Biochemical Sciences. 24(3). 104–109. 316 indexed citations
9.
Braun, Michael H., Helmut Killmann, & Volkmar Braun. (1999). The β‐barrel domain of FhuAΔ5‐160 is sufficient for TonB‐dependent FhuA activities of Escherichia coli. Molecular Microbiology. 33(5). 1037–1049. 77 indexed citations
10.
Killmann, Helmut & Volkmar Braun. (1998). Conversion of the coprogen transport protein FhuE and the ferrioxamine B transport protein FoxA into ferrichrome transport proteins. FEMS Microbiology Letters. 161(1). 59–67. 6 indexed citations
11.
Killmann, Helmut. (1998). Conversion of the coprogen transport protein FhuE and the ferrioxamine B transport protein FoxA into ferrichrome transport proteins. FEMS Microbiology Letters. 161(1). 59–67. 1 indexed citations
12.
13.
Pilsl, Holger, Helmut Killmann, Klaus Hantke, & V Braun. (1996). Periplasmic location of the pesticin immunity protein suggests inactivation of pesticin in the periplasm. Journal of Bacteriology. 178(8). 2431–2435. 28 indexed citations
14.
15.
Killmann, Helmut, Roland Benz, & V Braun. (1996). Properties of the FhuA channel in the Escherichia coli outer membrane after deletion of FhuA portions within and outside the predicted gating loop. Journal of Bacteriology. 178(23). 6913–6920. 41 indexed citations
16.
Killmann, Helmut & Volkmar Braun. (1994). Energy-dependent receptor activities ofEscherichia coliK-12: mutated TonB proteins alter FhuA receptor activities to phages T5, T1, â80 and to colicin M. FEMS Microbiology Letters. 119(1-2). 71–76. 19 indexed citations
17.
18.
Killmann, Helmut, Roland Benz, & V Braun. (1993). Conversion of the FhuA transport protein into a diffusion channel through the outer membrane of Escherichia coli.. The EMBO Journal. 12(8). 3007–3016. 116 indexed citations
19.
Pilsl, Holger, et al.. (1993). Domains of colicin M involved in uptake and activity. Molecular and General Genetics MGG. 240(1). 103–112. 55 indexed citations
20.
Killmann, Helmut & V Braun. (1992). An aspartate deletion mutation defines a binding site of the multifunctional FhuA outer membrane receptor of Escherichia coli K-12. Journal of Bacteriology. 174(11). 3479–3486. 48 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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