Personal profile
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 7 Affordable and Clean Energy -
SDG 13 Climate Action
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Collaborations and top research areas from the last five years
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CAREER: Connecting eukaryotic electron transfer components to nitrogenase using a bacterial chassis
Fixen, K. R. (PI)
THE NATIONAL SCIENCE FOUNDATION
2/1/24 → 1/31/29
Project: Research project
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Redox-regulation of electron flow in an anaerobe
Fixen, K. R. (PI)
U.S. DEPARTMENT OF ENERGY (USDOE)
9/1/19 → 8/31/26
Project: Research project
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Versatility of electron donors to heterodisulfide reductase in hydrogenotrophic methanogens
Fixen, K. R. (PI) & Costa, K. (Prior Principal Investigator)
U.S. DEPARTMENT OF ENERGY (USDOE)
9/1/18 → 8/31/26
Project: Research project
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The impact of lunar regolith on nitrogen fixation in a plant growth promoting rhizobacterium
Fixen, K. R. (PI)
5/1/24 → 9/1/25
Project: Research project
Research output
- 20 Article
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Predicting compatibility between ferredoxins and the Fe protein of nitrogenase using in silico protein modeling
Biswas, A., Trachtova, K. & Fixen, K. R., Mar 2026, In: Protein Science. 35, 3, e70509.Research output: Contribution to journal › Article › peer-review
Open Access -
Characterization of ferredoxins involved in electron transfer pathways for nitrogen fixation implicates differences in electronic structure in tuning 2[4Fe–4S] Fd activity
Lewis, N. M., Kisgeropoulos, E. C., Lubner, C. E. & Fixen, K. R., May 2024, In: Journal of Inorganic Biochemistry. 254, 112521.Research output: Contribution to journal › Article › peer-review
Open Access1 Link opens in a new tab Scopus citations -
Evolution of Rhodopseudomonas palustris to degrade halogenated aromatic compounds involves changes in pathway regulation and enzyme specificity
Haq, I. U., Christensen, A. & Fixen, K. R., Feb 2024, In: Applied and environmental microbiology. 90, 2Research output: Contribution to journal › Article › peer-review
Open Access7 Link opens in a new tab Scopus citations -
Evolving a New Electron Transfer Pathway for Nitrogen Fixation Uncovers an Electron Bifurcating-Like Enzyme Involved in Anaerobic Aromatic Compound Degradation
Lewis, N. M., Sarne, A. & Fixen, K. R., Jan 2023, In: mBio. 14, 1Research output: Contribution to journal › Article › peer-review
Open Access7 Link opens in a new tab Scopus citations -
PioABC-Dependent Fe(II) Oxidation during Photoheterotrophic Growth on an Oxidized Carbon Substrate Increases Growth Yield
Haas, N. W., Jain, A., Hying, Z., Arif, S. J., Niehaus, T. D., Gralnick, J. A. & Fixen, K. R., Aug 2022, In: Applied and environmental microbiology. 88, 15Research output: Contribution to journal › Article › peer-review
Open Access4 Link opens in a new tab Scopus citations