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K.R. Fixen, Y. Oda, and C.S. Harwood. (2019). Redox regulation of a light-harvesting antenna complex in an anoxygenic phototroph. mBio. In press.


K.R. Fixen, N.P. Chowdhury, M. Martinez-Perez, S. Poudel, E.S. Boyd, and C.S. Harwood. (2018). The path of electron transfer to nitrogenase in a phototrophic alpha-proteobacterium. Environ. Microbiol. 20(7):2500-2508. doi: 10.1111/1462-2920.14262.


S. Poudel, D.R. Colman, K.R. Fixen, R.N. Ledbetter, Y. Zheng, N. Pence, L.C. Seefeldt, J.W. Peters, C.S. Harwood, and E.S. Boyd. (2018). Electron transfer to nitrogenase in different genomic and metabolic backgrounds. J. Bacteriol. pii: JB.00757-17. doi: 10.1128/JB.00757-17.


Y. Zheng, D.F. Harris, Z. Yu, Y. Fu, S. Poudel, R.N. Ledbetter, K.R. Fixen, Z.Y. Yang, E.S. Boyd, M.E. Lidstrom, L.C. Seefeldt, and C.S. Harwood. (2018). A pathway for biological methane production using iron-only nitrogenase. Nat. Microbiol. 3(3): 281-286. doi: 10.1038/s41564-017-0091-5.


A. Garcia-Costas, S. Poudel, A.F. Miller, G.J. Schut, R.N. Ledbetter, K.R. Fixen, L.C. Seefeldt, M.W.W. Adams, C.S. Harwood, E. Boyd , and J.W. Peters. (2017). Defining electron bifurcation in the electron transferring flavoprotein family. J Bacteriol. 199(21): e00440-17. DOI: 10.1128/JB.00440-17


J. Yang, L. Yin, F.H. Lessner, E.S. Nakayasu, S.H. Payne, K.R. Fixen, L. Gallagher, and C.S. Harwood. (2017). Genes essential for phototrophic growth by a purple alphaproteobacterium. Environ. Microbiol. 19(9): 3567-3578. doi: 10.1111/1462-2920.13852


K.R. Fixen*, S.R. Starkenburg*, C.S. Harwood, and R.A. Cattolico. (2016) Draft genomes of 8 bacterial isolates associated with the haptophyte Chrysochromulina tobin. Genome Announc. 4(6). pii: e01162-16. doi: 10.1128/genomeA.01162-16.

*contributed equally to this work


K.R. Fixen*, Y. Zheng*, D.F. Harris, S. Shaw, Z.Y. Yang, D.R. Dean, L. Seefeldt, and C.S. Harwood. (2016). Light-driven carbon dioxide reduction to methane by nitrogenase in a photosynthetic bacterium. PNAS. In press. doi:10.1073/pnas.1611043113

*contributed equally to this work

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K.R. Fixen and C.S. Harwood. (2016). A polymorphism in the oxygen-responsive repressor PpsR2 confers a growth advantage to the purple nonsulfur bacterium Rhodopseudomonas palustris under low light. Photosynth Res. 129: 199. doi:10.1007/s11120-016-0288-0


K.R. Fixen*, Y. Oda*, and C.S. Harwood. (2015). Clades of photosynthetic bacteria belonging to the genus Rhodopseudomonas show marked diversity in light-harvesting antenna complex gene composition and expression. mSystems. 1(1): e00006-15. doi: 10.1128/mSystems.00006-15.

*contributed equally to this work


K.R. Fixen, A.W. Baker, E.A. Stojkovic, J.T. Beatty, C.S. Harwood. (2014). Apo-bacteriophytochromes modulate bacterial photosynthesis in response to low light. PNAS. 111(2): E237-44. doi: 10.1073/pnas.1322410111


K.R. Fixen, S.C. Thomas, C.B.S. Tong. 2012. Blue light inhibition of tuberization in day-neutral potato. J of Plant Growth Regulation. 31(3): 342-350. doi: 10.1007/s00344-011-9242-8


K.R. Fixen, A. Janakiraman, S.J. Garrity, D.J. Slade, A.N. Gray, N., Karahan, A. Hochschild, M.B. Goldberg. 2012. Genetic reporter assay for positioning of proteins at the bacterial pole. mBio. 3(2). e00251-11. doi: 10.1128/mBio.00251-11


A. Janakiraman, K.R. Fixen, A.N. Gray, H. Niki, M.B. Goldberg. 2009. A genome-scale proteomic screen identifies a role for DnaK in chaperoning of polar autotransporters in Shigella. J. Bacteriol. 191(20): 6300-11. doi: 10.1128/JB.00833-09


K.R. Fixen, J.R. Chandler, T. Le, B.K. Kozlowicz, D.A. Manias, G.M. Dunny. 2007. Analysis of the amino acid sequence specificity determinants of the enterococcal cCF10 sex pheromone in the interactions with the pheromone sensing machinery.
J. Bacteriol. 189(4): 1399-406. doi: 10.1128/JB.01226-06


C. Alberti-Sequi, K.R. Goeden (maiden name), D.E. Higgins. 2007. Differential function of Listeria monocytogenes listeriolysin O and phospholipases C in vacuolar dissolution following cell-to-cell spread. Cell. Microbiol. 9(1):179-95. doi: 10.1111/j.1462-5822.2006.00780.x

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