🏆 Finalist — NIH Data Sharing Index (“S-Index”) Challenge

V. K. Viswanathan

University of Arizona

ORCID: 0000-0002-9258-9865
MedicineBiochemistry, Genetics and Molecular Biology

Pilot corpus only

This score is computed over theSindex pilot corpus and does not cover the full scientific literature. Scores are relative to papers we have ingested — papers, authors, and institutions outside the pilot are not represented. Methodology.

Top 7%percentile
0.104Author DataRank

Indexed papers

1in pilot corpus
datarank_citation_only_1hop_v6· scope data_onlyMethodology
Why this DataRank?

An author's DataRank is the sum of the DataRanks of all 1 indexed paper attributed to them. A prolific author with many moderate-impact papers can outrank one with a single high-impact paper.

Author scores recompute whenever paper DataRanks are refreshed, so this number lags the underlying paper scores by at most one batch run.

Read the full methodology →

Top data-sharing exemplar

The highest-impact dataset this researcher has shared, ranked by DataRank — the single contribution doing the most to lift their data-sharing standing.

CAT-GxD: Centralized access to gene expression datasets

Anaerobe(2025)10.1016/j.anaerobe.2025.103005
Top 78%
0.104DataRank
Top 78%1 citations

Jennifer Lising Roxas, Jessica Guo, David LeBauer, Fiona McCarthy, Gayatri Vedantam +2 more

Papers

Driven by 11 papers — median percentile 22. Top paper: “CAT-GxD: Centralized access to gene expression datasets”.

CAT-GxD: Centralized access to gene expression datasets

Anaerobe(2025)10.1016/j.anaerobe.2025.103005
Top 78%
0.104DataRank
Top 78%1 citations

Jennifer Lising Roxas, Jessica Guo, David LeBauer, Fiona McCarthy, Gayatri Vedantam +2 more

The Alternative Sigma Factor SigL Influences Clostridioides difficile Toxin Production, Sporulation, and Cell Surface Properties

Frontiers in Microbiology(2022)10.3389/fmicb.2022.871152
N/A
0DataRank · unranked
8 citations

Chelsea C. Adamson, Katelyn E. Carothers, Bryan Angelo P. Roxas, V. K. Viswanathan, Gayatri Vedantam +1 more

Low-toxin Clostridioides difficile RT027 strains exhibit robust virulence

Emerging Microbes & Infections(2022)10.1080/22221751.2022.2105260
N/A
0DataRank · unranked
6 citations

Bryan Angelo P. Roxas, Kareem W. Shehab, Neil M. Ampel, V. K. Viswanathan, Gayatri Vedantam +1 more

The Alternative Sigma Factor SigL Influences Clostridioides difficile Toxin Production, Sporulation, and Cell Surface Properties

bioRxiv (Cold Spring Harbor Laboratory)(2022)10.1101/2022.01.26.477884
N/A
0DataRank · unranked
0 citations

Chelsea C. Adamson, Katelyn E. Carothers, Bryan Angelo P. Roxas, V. K. Viswanathan, Gayatri Vedantam +1 more

Low-Toxin Clostridioides difficile RT027 Strains Exhibit Robust Virulence

bioRxiv (Cold Spring Harbor Laboratory)(2022)10.1101/2022.03.18.484943
N/A
0DataRank · unranked
0 citations

Bryan Angelo P. Roxas, Kareem W. Shehab, Neil M. Ampel, V. K. Viswanathan, Gayatri Vedantam +1 more

Phylogenomic analysis of Clostridioides difficile ribotype 106 strains reveals novel genetic islands and emergent phenotypes

Scientific Reports(2020)10.1038/s41598-020-79123-2
N/A
0DataRank · unranked
30 citations

Jennifer Lising Roxas, Rachel Claus-Walker, Anusha Harishankar, Asad Mansoor, Farhan Anwar +8 more

Attaching and effacing pathogens modulate host mitochondrial structure and function

International review of cell and molecular biology(2023)10.1016/bs.ircmb.2023.03.001
N/A
0DataRank · unranked
7 citations

V. K. Viswanathan, Anusha Harishankar

Clostridium scindens exacerbates experimental necrotizing enterocolitis via upregulation of the apical sodium-dependent bile acid transporter

American Journal of Physiology-Gastrointestinal and Liver Physiology(2023)10.1152/ajpgi.00102.2023
N/A
0DataRank · unranked
5 citations

Katelyn E. Carothers, Shylaja Ramamurthy, Neha Jagadish, Bhumika Phanindra, Anett Garcia +3 more

Prevalence of diagnostically-discrepant Clostridioides difficile clinical specimens: insights from longitudinal surveillance

Frontiers in Medicine(2023)10.3389/fmed.2023.1238159
N/A
0DataRank · unranked
2 citations

Marielle Clark, J. Page Lindsey, Rachel Claus-Walker, Asad Mansoor, Anh Evy Nguyen +6 more

Clostridioides difficile superoxide reductase mitigates oxygen sensitivity

Journal of Bacteriology(2024)10.1128/jb.00175-24
N/A
0DataRank · unranked
8 citations

Katelyn E. Carothers, Bryan Angelo P. Roxas, Farhan Anwar, V. K. Viswanathan, Gayatri Vedantam +1 more

A superoxide reductase contributes to Clostridioides difficile resistance to oxygen

bioRxiv (Cold Spring Harbor Laboratory)(2022)10.1101/2022.12.19.521142
N/A
0DataRank · unranked
0 citations

Katelyn E. Carothers, Bryan Angelo P. Roxas, Farhan Anwar, V. K. Viswanathan, Gayatri Vedantam +1 more