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Subsurface Biogeochemical Research Program

Molecular-Scale Processes

Molecular Structure of Shewanella oneidensis MtrF Decaheme Cytochrome

Molecular Structure of Shewanella oneidensis MtrF Decaheme Cytochrome. The structure provides molecular insight into how reduction of insoluble substrates (e.g., minerals), soluble substrates (e.g., flavins), and cytochrome redox partners might be possible in tandem at different termini of a trifurcated electron-transport chain on the cell surface. [Clarke et al. 2011. “Structure of a Bacterial Cell Surface Decaheme Electron Conduit,” PNAS. DOI: 10.1073/pnas.1017200108.]

Molecular-Scale Processes emphasizes analyses of sorption/desorption, precipitation/dissolution, redox transformations, and other hydrobiogeochemical processes that can be fully understood only through detailed, mechanistic, molecular-scale studies. These process analyses form the basis for understanding the myriad different mechanisms affecting elemental (e.g., Fe, S, N, P, O), nutrient (e.g., C, N, P, S), and contaminant (e.g., Cr, U, Pu, Tc, Hg, Np, I) mobility and cycling in the environment across a wide range of spatial and temporal scales.

These molecular-scale research activities are leveraged by access to user facilities including:

DOE Office of Science Graduate Student Research (SCGSR) program is now accepting applications! Detailed information about the program, including eligibility requirements and access to the online application system, can be found at: https://science.energy.gov/wdts/scgsr/. Applications due May 16, 2017 5:00PM Eastern Time

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Funding

Highlights

Subsurface Biogeochemical-Related BER Research Highlights