Paul W. Ludden

9.0k total citations
142 papers, 6.5k citations indexed

About

Paul W. Ludden is a scholar working on Renewable Energy, Sustainability and the Environment, Molecular Biology and Environmental Engineering. According to data from OpenAlex, Paul W. Ludden has authored 142 papers receiving a total of 6.5k indexed citations (citations by other indexed papers that have themselves been cited), including 83 papers in Renewable Energy, Sustainability and the Environment, 78 papers in Molecular Biology and 32 papers in Environmental Engineering. Recurrent topics in Paul W. Ludden's work include Metalloenzymes and iron-sulfur proteins (81 papers), Photosynthetic Processes and Mechanisms (37 papers) and Microbial Fuel Cells and Bioremediation (32 papers). Paul W. Ludden is often cited by papers focused on Metalloenzymes and iron-sulfur proteins (81 papers), Photosynthetic Processes and Mechanisms (37 papers) and Microbial Fuel Cells and Bioremediation (32 papers). Paul W. Ludden collaborates with scholars based in United States, Japan and Sweden. Paul W. Ludden's co-authors include Luis M. Rubio, G P Roberts, Vinod K. Shah, R. H. Burris, Robert L. Kerby, D Bonam, Scott A. Ensign, Jongyun Heo, S A Murrell and Robert G. Lowery and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Paul W. Ludden

142 papers receiving 6.2k citations

Peers

Paul W. Ludden

RESE

Bärbel Friedrich Germany

Paulette M. Vignais France

Leonard E. Mortenson United States

Winston J. Brill United States

Antonio J. Pierik Germany

William E. Newton United States

Vinod K. Shah United States

R. H. Burris United States

Simon P. J. Albracht Netherlands

Ortwin Meyer Germany

Bärbel Friedrich Germany

Paul W. Ludden

5.3k ×1.5

RESE

3.8k ×1.3

1.7k ×1.5

1.6k ×1.7

568 ×0.6

Citations per year, relative to Paul W. Ludden Paul W. Ludden (= 1×) peers Bärbel Friedrich

Countries citing papers authored by Paul W. Ludden

Since Specialization

Citations

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

Fields of papers citing papers by Paul W. Ludden

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Paul W. Ludden. 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 Paul W. Ludden. The network helps show where Paul W. Ludden may publish in the future.

Co-authorship network of co-authors of Paul W. Ludden

This figure shows the co-authorship network connecting the top 25 collaborators of Paul W. Ludden. A scholar is included among the top collaborators of Paul W. Ludden 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 Paul W. Ludden. Paul W. Ludden 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

Curatti, Leonardo, Paul W. Ludden, & Luis M. Rubio. (2006). NifB-dependent in vitro synthesis of the iron–molybdenum cofactor of nitrogenase. Proceedings of the National Academy of Sciences. 103(14). 5297–5301. 83 indexed citations

Jeon, Won Bae, Steven W. Singer, Paul W. Ludden, & Luis M. Rubio. (2005). New insights into the mechanism of nickel insertion into carbon monoxide dehydrogenase: analysis of Rhodospirillum rubrum carbon monoxide dehydrogenase variants with substituted ligands to the [Fe3S4] portion of the active-site C-cluster. JBIC Journal of Biological Inorganic Chemistry. 10(8). 903–912. 24 indexed citations

Rubio, Luis M., Steven W. Singer, & Paul W. Ludden. (2004). Purification and Characterization of NafY (Apodinitrogenase γ Subunit) from Azotobacter vinelandii. Journal of Biological Chemistry. 279(19). 19739–19746. 32 indexed citations

Heo, Jongyun, Marcus T. Wolfe, Christopher R. Staples, & Paul W. Ludden. (2002). Converting the NiFeS Carbon Monoxide Dehydrogenase to a Hydrogenase and a Hydroxylamine Reductase. Journal of Bacteriology. 184(21). 5894–5897. 25 indexed citations

Rangaraj, Priya & Paul W. Ludden. (2002). Accumulation of 99Mo-containing Iron-Molybdenum Cofactor Precursors of Nitrogenase on NifNE, NifH, and NifX ofAzotobacter vinelandii. Journal of Biological Chemistry. 277(42). 40106–40111. 23 indexed citations

Drennan, Catherine L., Jongyun Heo, Michael D. Sintchak, Eric R. Schreiter, & Paul W. Ludden. (2001). Life on carbon monoxide: X-ray structure of Rhodospirillum rubrum Ni-Fe-S carbon monoxide dehydrogenase. Proceedings of the National Academy of Sciences. 98(21). 11973–11978. 235 indexed citations

Zhang, Yaoping, Kitai Kim, Paul W. Ludden, & Gary P. Roberts. (2001). Isolation and characterization of draT mutants that have altered regulatory properties of dinitrogenase reductase ADP-ribosyltransferase in Rhodospirillum rubrum. Microbiology. 147(1). 193–202. 7 indexed citations

Allen, Ronda M., Jon T. Roll, Priya Rangaraj, et al.. (1999). Incorporation of Molybdenum into the Iron-Molybdenum Cofactor of Nitrogenase. Journal of Biological Chemistry. 274(22). 15869–15874. 24 indexed citations

Rangaraj, Priya, Matthew J. Ryle, William N. Lanzilotta, Paul W. Ludden, & Vinod K. Shah. (1999). In Vitro Biosynthesis of Iron-Molybdenum Cofactor and Maturation of the nif-encoded Apodinitrogenase. Journal of Biological Chemistry. 274(28). 19778–19784. 23 indexed citations

10.

Rüttimann-Johnson, Carmen, Christopher R. Staples, Priya Rangaraj, Vinod K. Shah, & Paul W. Ludden. (1999). A Vanadium and Iron Cluster Accumulates on VnfX during Iron-Vanadium-cofactor Synthesis for the Vanadium Nitrogenase inAzotobacter vinelandii. Journal of Biological Chemistry. 274(25). 18087–18092. 23 indexed citations

11.

Spangler, Nathan J., et al.. (1998). Substitution of Valine for Histidine 265 in Carbon Monoxide Dehydrogenase from Rhodospirillum rubrum Affects Activity and Spectroscopic States. Journal of Biological Chemistry. 273(7). 4059–4064. 27 indexed citations

12.

Chatterjee, Ranjini, Paul W. Ludden, & Vinod K. Shah. (1997). Characterization of VNFG, the δ Subunit of the vnf-Encoded Apodinitrogenase from Azotobacter vinelandii. Journal of Biological Chemistry. 272(6). 3758–3765. 23 indexed citations

13.

Chatterjee, Ranjini, Ronda M. Allen, Paul W. Ludden, & Vinod K. Shah. (1996). Purification and Characterization of the vnf-encoded Apodinitrogenase from Azotobacter vinelandii. Journal of Biological Chemistry. 271(12). 6819–6826. 17 indexed citations

14.

Allen, Ronda M., Ranjini Chatterjee, Paul W. Ludden, & Vinod K. Shah. (1995). Incorporation of Iron and Sulfur from NifB Cofactor into the Iron-Molybdenum Cofactor of Dinitrogenase. Journal of Biological Chemistry. 270(45). 26890–26896. 73 indexed citations

15.

Ensign, Scott A., Michael J. Campbell, & Paul W. Ludden. (1990). Activation of the nickel-deficient carbon monoxide dehydrogenase from Rhodospirillum rubrum: kinetic characterization and reductant requirement. Biochemistry. 29(8). 2162–2168. 36 indexed citations

16.

Hoover, Timothy R., Juan Imperial, Paul W. Ludden, & Vinod K. Shah. (1989). Homocitrate is a component of the iron-molybdenum cofactor of nitrogenase. Biochemistry. 28(7). 2768–2771. 95 indexed citations

17.

Ensign, Scott A., Michael R. Hyman, & Paul W. Ludden. (1989). Nickel-specific, slow-binding inhibition of carbon monoxide dehydrogenase from Rhodospirillum rubrum by cyanide. Biochemistry. 28(12). 4973–4979. 56 indexed citations

18.

Fitzmaurice, Wayne P., et al.. (1989). Genes coding for the reversible ADP-ribosylation system of dinitrogenase reductase from Rhodospirillum rubrum. Molecular and General Genetics MGG. 218(2). 340–347. 84 indexed citations

19.

Hoover, Timothy R., et al.. (1988). Dinitrogenase with altered substrate specificity results from the use of homocitrate analogs for in vitro synthesis of the iron-molybdenum cofactor. Biochemistry. 27(10). 3647–3652. 36 indexed citations

20.

Ludden, Paul W. & J.M. Daly. (1970). Certain biochemical comparisons in wheat stem rust disease reactions controlled either at the Sr6 or Sr11 loci.. Phytopathology. 60. 1 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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