Thomas Happe

12.2k total citations · 1 hit paper
141 papers, 9.3k citations indexed

About

Thomas Happe is a scholar working on Renewable Energy, Sustainability and the Environment, Molecular Biology and Electrical and Electronic Engineering. According to data from OpenAlex, Thomas Happe has authored 141 papers receiving a total of 9.3k indexed citations (citations by other indexed papers that have themselves been cited), including 127 papers in Renewable Energy, Sustainability and the Environment, 58 papers in Molecular Biology and 30 papers in Electrical and Electronic Engineering. Recurrent topics in Thomas Happe's work include Metalloenzymes and iron-sulfur proteins (116 papers), Electrocatalysts for Energy Conversion (86 papers) and Photosynthetic Processes and Mechanisms (52 papers). Thomas Happe is often cited by papers focused on Metalloenzymes and iron-sulfur proteins (116 papers), Electrocatalysts for Energy Conversion (86 papers) and Photosynthetic Processes and Mechanisms (52 papers). Thomas Happe collaborates with scholars based in Germany, United Kingdom and United States. Thomas Happe's co-authors include Anastasios Melis, Anja Hemschemeier, Martin Winkler, Wolfgang Lubitz, Sven T. Stripp, J. Dirk Naber, Fräser A. Armstrong, Julian Esselborn, Edward J. Reijerse and Camilla Lambertz and has published in prestigious journals such as Nature, Proceedings of the National Academy of Sciences and Journal of the American Chemical Society.

In The Last Decade

Thomas Happe

139 papers receiving 9.2k citations

Hit Papers

align trajectories

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.

Biomimetic assembly and activation of [FeFe]-hydrogenases

2013 566 citations Camilla Lambertz, Julian Esselborn et al. profile →

Peers

Countries citing papers authored by Thomas Happe

Since Specialization

Citations

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

Fields of papers citing papers by Thomas Happe

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Thomas Happe

This figure shows the co-authorship network connecting the top 25 collaborators of Thomas Happe. A scholar is included among the top collaborators of Thomas Happe 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 Thomas Happe. Thomas Happe 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

#	Work	Indexed citations
1	Protein Dynamics Affect O ₂ -Stability of Group B [FeFe]-Hydrogenase from Thermosediminibacter oceani 2025 ·Journal of the American Chemical Society ·(unknown), Chandan K. Das, S.M. Iftekhar Uddin, Sven T. Stripp, (unknown), M. Winkler, Silke Leimkühler, (unknown), Jifu Duan, Lars V. Schäfer, Thomas Happe	1
2	Structural determinants of oxygen resistance and Zn ²⁺ -mediated stability of the [FeFe]-hydrogenase from Clostridium beijerinckii 2025 ·Proceedings of the National Academy of Sciences ·Jifu Duan, (unknown), Akihiro Kawamoto, (unknown), (unknown), Silke Leimkühler, Eckhard Hofmann, Thomas Happe, Genji Kurisu	3
3	Distinct Valence States of the [4Fe4S] Cluster Revealed in the Hydrogenase Cr HydA1 2025 ·Angewandte Chemie International Edition ·(unknown), Shalini Yadav, (unknown), (unknown), (unknown), (unknown), Thomas Happe, Dimitrios A. Pantazis, Müge Kasanmascheff	0
4	Oxygen sensitivity of [FeFe]-hydrogenase: a comparative study of active site mimics inside vs. outside the enzyme 2024 ·Physical Chemistry Chemical Physics ·(unknown), (unknown), (unknown), Michael Roemelt, Thomas Happe, Ulf‐Peter Apfel, Sven T. Stripp	4
5	Chlamydomonas reinhardtii mutants deficient for Old Yellow Enzyme 3 exhibit increased photooxidative stress 2023 ·Plant Direct ·(unknown), (unknown), Reimund Goss, Matthias Gilbert, Severin Sasso, Thomas Happe, Anja Hemschemeier	2
6	Impact of Deep Eutectic Solvents on Kinetics and Folding Stability of Formate Dehydrogenase 2023 ·Processes ·Nicolás F. Gajardo‐Parra, Gabriel Rodríguez‐Romo, (unknown), (unknown), Thomas Happe, Roberto I. Canales, Gabriele Sadowski, Christoph Held	12
7	A Dynamic Water Channel Affects O₂ Stability in [FeFe]‐Hydrogenases 2023 ·ChemSusChem ·(unknown), Chandan K. Das, Jifu Duan, (unknown), Ulf‐Peter Apfel, (unknown), Eckhard Hofmann, Martin Winkler, (unknown), Lars V. Schäfer, Thomas Happe	5
8	The [4Fe‐4S]‐Cluster of HydF is not Required for the Binding and Transfer of the Diiron Site of [FeFe]‐Hydrogenases 2023 ·ChemBioChem ·(unknown), (unknown), (unknown), (unknown), Ulf‐Peter Apfel, Silke Leimkühler, Thomas Happe	5
9	A safety cap protects hydrogenase from oxygen attack 2021 ·Nature Communications ·Martin Winkler, Jifu Duan, (unknown), (unknown), (unknown), (unknown), (unknown), Ulf‐Peter Apfel, Gianfranco Gilardi, Francesca Valetti, Vincent Fourmond, Eckhard Hofmann, Christophe Léger, Thomas Happe	62
10	Electrochemical control of [FeFe]-hydrogenase single crystals reveals complex redox populations at the catalytic site 2021 ·Dalton Transactions ·Simone Morra, Jifu Duan, Martin Winkler, Philip A. Ash, Thomas Happe, Kylie A. Vincent	14
11	The roles of long-range proton-coupled electron transfer in the directionality and efficiency of [FeFe]-hydrogenases 2020 ·Proceedings of the National Academy of Sciences ·(unknown), Jifu Duan, Eckhard Hofmann, Martin Winkler, Fräser A. Armstrong, Thomas Happe	58
12	Geometry of the Catalytic Active Site in [FeFe]-Hydrogenase Is Determined by Hydrogen Bonding and Proton Transfer 2019 ·ACS Catalysis ·Jifu Duan, Stefan Mebs, Konstantin Laun, Florian Wittkamp, Joachim Heberle, Thomas Happe, Eckhard Hofmann, Ulf‐Peter Apfel, Martin Winkler, Moritz Senger, Michael Haumann, Sven T. Stripp	37
13	Loss of Specific Active-Site Iron Atoms in Oxygen-Exposed [FeFe]-Hydrogenase Determined by Detailed X-ray Structure Analyses 2019 ·Journal of the American Chemical Society ·Julian Esselborn, (unknown), Ulf‐Peter Apfel, Eckhard Hofmann, Thomas Happe	33
14	Crystallographic and spectroscopic assignment of the proton transfer pathway in [FeFe]-hydrogenases 2018 ·Nature Communications ·Jifu Duan, Moritz Senger, Julian Esselborn, (unknown), Florian Wittkamp, Ulf‐Peter Apfel, Eckhard Hofmann, Sven T. Stripp, Thomas Happe, Martin Winkler	64
15	Accumulating the hydride state in the catalytic cycle of [FeFe]-hydrogenases 2017 ·Nature Communications ·Martin Winkler, Moritz Senger, Jifu Duan, Julian Esselborn, Florian Wittkamp, Eckhard Hofmann, Ulf‐Peter Apfel, Sven T. Stripp, Thomas Happe	93
16	Chalcogenide substitution in the [2Fe] cluster of [FeFe]-hydrogenases conserves high enzymatic activity 2017 ·Dalton Transactions ·(unknown), Florian Wittkamp, Constanze Sommer, Julian Esselborn, Olaf Rüdiger, E.J. Reijerse, Eckhard Hofmann, Wolfgang Lubitz, Martin Winkler, Thomas Happe, Ulf‐Peter Apfel	47
17	A structural view of synthetic cofactor integration into [FeFe]-hydrogenases 2015 ·Chemical Science ·Julian Esselborn, Norifumi Muraki, Kathrin Klein, (unknown), Nils Metzler‐Nolte, Ulf‐Peter Apfel, Eckhard Hofmann, Genji Kurisu, Thomas Happe	123
18	Anaerobic Expression of the Ferredoxin-Encoding FDX5 Gene of Chlamydomonas reinhardtii Is Regulated by the Crr1 Transcription Factor 2010 ·Eukaryotic Cell ·Camilla Lambertz, Anja Hemschemeier, Thomas Happe	24
19	Hydrogen Production. Green Algae as a Source of Energy 2001 ·PLANT PHYSIOLOGY ·Anastasios Melis, Thomas Happe	435
20	Biochemical and morphological characterization of sulfur-deprived and hydrogen-producing Chlamydomonas reinhardtii (green algae) 2001 ·Science Access ·Liguo Zhang, Thomas Happe	1

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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