Author

J. L. Keffer

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Microbiology· 3

Signature Assays, Organisms & Methods

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Organism:bacteria (other)· 2 Approach:experimental assay· 2 Assay:bulk RNA-seq· 1 Research Focus:cell type annotation· 1 Research Focus:chromatin & epigenetic regulation· 1 Research Focus:host-pathogen & immune response· 1 Approach:statistical model· 1

Frequent Co-Authors

C. S. Chan· 2 shared S. W. Polson· 2 shared A. Garber· 1 shared B. J. Hallahan· 1 shared C. Chan· 1 shared M. C. Sutherland· 1 shared N. Zhou· 1 shared R. L. Hoover· 1 shared

Activity by Year

2021-2023 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 20 mutual co-author links

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2 shared papersMicrobiology

C. S. Chan

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Author profile →

3 papers

Recent·Most cited

Gallionellaceae pangenomic analysis reveals insight into phylogeny, metabolic flexibility, and iron oxidation mechanisms

R. L. Hoover, J. L. Keffer, S. W. Polson, C. S. Chan

This study uses pangenomic analysis of 103 Gallionellaceae genomes to reveal their phylogeny, metabolic flexibility, and iron oxidation mechanisms, identifying novel multiheme c-type cytochromes involved in extracellular electron uptake.

bioRxiv · Jan 26, 2023Microbiology

Unraveling Fe(II)-oxidizing mechanisms in a facultative Fe(II) oxidizer Sideroxydans lithotrophicus ES-1 via culturing, transcriptomics, and RT-qPCR

N. Zhou, J. L. Keffer, S. W. Polson, C. S. Chan

This study investigates Fe(II) oxidation mechanisms in Sideroxydans lithotrophicus ES-1 using transcriptomics and RT-qPCR, identifying Cyc2 as the Fe(II) oxidase and linking Fe(II) oxidation to carbon fixation.

bioRxiv · Aug 18, 2021Microbiology

Iron oxidation by a fused cytochrome-porin common to diverse iron-oxidizing bacteria

J. L. Keffer, S. M. McAllister, A. Garber, B. J. Hallahan, M. C. Sutherland, S. Rozovsky, C. Chan

This study confirms that Cyc2 from neutrophilic iron-oxidizers functions as an iron oxidase, with a unique fused cytochrome-porin structure and redox potential suitable for Fe2+ oxidation at neutral pH.

bioRxiv · Apr 17, 2021Microbiology