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Employment (3)

Arkansas State University: Jonesboro, Arkansas, US

2021-08-16 to present | Assistant Professor (Department of Biological Sciences)
Employment
Source: Self-asserted source
Robert C. Shields

University of Florida: Gainesville, Florida, US

2017-07-01 to 2021-08-13 | Research Assistant Professor (Oral Biology)
Employment
Source: Self-asserted source
Robert C. Shields

University of Florida: Gainesville, Florida, US

2014-08-11 to 2017-06-31 | Postdoctoral Research Associate (Oral Biology)
Employment
Source: Self-asserted source
Robert C. Shields

Education and qualifications (2)

Newcastle University: Newcastle upon Tyne, North East England, GB

2010-09-01 to 2014-07-01 | Ph.D. Microbiology (School of Dental Sciences)
Education
Source: Self-asserted source
Robert C. Shields

Newcastle University: Newcastle upon Tyne, North East England, GB

2006-09-01 to 2009-07-01 | B.S. Marine Biology (School of Marine Sciences and Technology)
Education
Source: Self-asserted source
Robert C. Shields

Funding (5)

Mechanisms of Integrative and Conjugative Elements in Oral Bacteria

2024-09-30 to 2029-05-31 | Grant
National Institute of Dental and Craniofacial Research (Bethesda, US)
URL: https://app.dimensions.ai/details/grant/grant.14100353
GRANT_NUMBER: R01DE033403
Source: Self-asserted source
Robert C. Shields via DimensionsWizard

MRI: Acquisition of a Nanoindenter for Materials Science and Biomaterials Research

2022-09-01 to 2024-08-31 | Grant
Directorate for Engineering (Alexandria, US)
URL: https://app.dimensions.ai/details/grant/grant.12949025
GRANT_NUMBER: 2214855
Source: Self-asserted source
Robert C. Shields via DimensionsWizard

Exploring Integrative Conjugative Elements in the Biology and Ecology of Oral Streptococci

2021-07-01 to 2023-06-30 | Grant
National Institute of Dental and Craniofacial Research (Bethesda, US)
URL: https://app.dimensions.ai/details/grant/grant.9733733
GRANT_NUMBER: R03DE029882
Source: Self-asserted source
Robert C. Shields via DimensionsWizard

Assessing the Impact of Agr Quorum Sensing on Staphylococcus aureus Physiology in the Space Flight Environment

2021-02-08 to 2024-02-07 | Grant
National Aeronautics and Space Administration (Washington D.C., US)
URL: https://app.dimensions.ai/details/grant/grant.9619437
GRANT_NUMBER: 80NSSC21K0601
Source: Self-asserted source
Robert C. Shields via DimensionsWizard

Probing the Effect of Simulated Microgravity on the Pathogenic Potential of Cariogenic Streptococcus mutans

2018-07-26 to 2021-07-25 | Grant
National Aeronautics and Space Administration (Washington D.C., US)
URL: https://app.dimensions.ai/details/grant/grant.7850363
GRANT_NUMBER: 80NSSC18K1463
Source: Self-asserted source
Robert C. Shields via DimensionsWizard

Works (29)

Characterization of MreCD in Streptococcus mutans

Journal of Oral Microbiology
2025-12-31 | Journal article
DOI: 10.1080/20002297.2025.2487643
Contributors: Victor Chan; Tessa Holcomb; Justin R. Kaspar; Robert C. Shields
Source: check_circle
Crossref

Enhanced Production of Anti-Inflammatory and Antibacterial Prenylated Isoflavonoids in Pigeon Pea (Cajanus cajan) Hairy Root Cultures

Journal of Agricultural and Food Chemistry
2025-03-12 | Journal article
DOI: 10.1021/acs.jafc.4c12406
Contributors: Gaurav Gajurel; Amit Raj Sharma; Salma Abdel-Karim; Carlos Balmaceda; Fazila Zulfiqar; Pankaj Pandey; Zulfiqar Ali; Robert Colquhoun Shields; Mohammad Abrar Alam; Fabricio Medina-Bolivar
Source: check_circle
Crossref

Production of Malheuran A, a Geranylated Flavonoid with Antimicrobial and Anti-Inflammatory Activities, in Hairy Root Cultures of Dalea purpurea

Plants
2025-01-17 | Journal article
DOI: 10.3390/plants14020259
Contributors: Amit Raj Sharma; Gaurav Gajurel; Salma Abdel-Karim; Mohammad Abrar Alam; Robert Colquhoun Shields; Fabricio Medina-Bolivar
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

MecA in <i>Streptococcus mutans</i> is a multi-functional protein.

mSphere
2024-11 | Journal article
DOI: 10.1128/msphere.00308-24
PMID: 39530674
PMC: PMC11656736
Contributors: Ellepola K; Shields RC; Kajfasz JK; Zhang H; Lemos JA; Wu H; Wen ZT
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central

Genomic analysis of conjugative and chromosomally integrated mobile genetic elements in oral streptococci

Applied and Environmental Microbiology
2024-10-23 | Journal article
DOI: 10.1128/aem.01360-24
Contributors: Erica Lee; Erin Priutt; Seth Woods; Allison Quick; Shawn King; Lisa K. McLellan; Robert C. Shields; Christopher A. Elkins
Source: check_circle
Crossref

Effect of peanut stilbenoids, arachidin-1 and arachidin-3, on <i>Streptococcus mutans</i> growth and acid production.

Natural product research
2024-01 | Journal article
DOI: 10.1080/14786419.2024.2302316
PMID: 38225899
Contributors: Reed KB; Pruitt E; Hansa Raj KC; Sharma AR; Medina-Bolivar F; Shields RC
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central

Construction of an arrayed CRISPRi library as a resource for essential gene function studies in Streptococcus mutans

Microbiology Spectrum
2024-01-11 | Journal article
DOI: 10.1128/spectrum.03149-23
Contributors: Jackson St. Pierre; Justin Roberts; Mohammad A. Alam; Robert C. Shields; Jose A. Lemos; Ping Xu; Jonathon L. Baker
Source: check_circle
Crossref

Development and Antibacterial Properties of 4-[4-(Anilinomethyl)-3-phenylpyrazol-1-yl]benzoic Acid Derivatives as Fatty Acid Biosynthesis Inhibitors

Journal of Medicinal Chemistry
2023-10-12 | Journal article
DOI: 10.1021/acs.jmedchem.3c00969
Contributors: Subrata Roy; Hansa Raj KC; Justin Roberts; Jared Hastings; David F. Gilmore; Robert C. Shields; Mohammad A. Alam
Source: check_circle
Crossref

Activation of TnSmu1, an integrative and conjugative element, by an ImmR-like transcriptional regulator in Streptococcus mutans

Microbiology
2022-10-06 | Journal article
DOI: 10.1099/mic.0.001254
Contributors: Shawn King; Allison Quick; Kalee King; Alejandro R. Walker; Robert C. Shields
Source: check_circle
Crossref

Identification and Analysis of Essential Genes in Streptococcus mutans with Transposon Sequencing.

Methods in Molecular Biology (Clifton, N.J.)
2021-10-01 | Book chapter
DOI: 10.1007/978-1-0716-1720-5_13
PMID: 34709620
Source: Self-asserted source
Robert C. Shields

Repurposing the Streptococcus mutans CRISPR-Cas9 System to Understand Essential Gene Function

PLOS Pathogens
2020-03-09 | Journal article
DOI: 10.1371/journal.ppat.1008344
Contributors: Robert C. Shields; Paul M. Sullam; Alejandro R. Walker; Natalie Maricic; Brinta Chakraborty; Simon A. M. Underhill; Robert A. Burne
Source: check_circle
Crossref

Peptides encoded in the Streptococcus mutans RcrRPQ operon are essential for thermotolerance

Microbiology
2020-03-01 | Journal article
DOI: 10.1099/mic.0.000887
Contributors: Robert C. Shields; Jeong Nam Kim; Sang-Joon Ahn; Robert A. Burne
Source: check_circle
Crossref

Carbohydrate and PepO control bimodality in competence development by Streptococcus mutans.

Molecular microbiology
2019-08-12 | Journal article
DOI: 10.1111/mmi.14367
PMID: 31403729
Source: Self-asserted source
Robert C. Shields

Fluorescence tools adapted for real-time monitoring of the behaviors of Streptococcus species.

Applied and Environmental Microbiology
2019-05-17 | Journal article
DOI: 10.1128/aem.00620-19
PMID: 31101614
Source: Self-asserted source
Robert C. Shields
grade
Preferred source (of 2)‎

The Bare Necessities: Uncovering Essential and Condition-Critical Genes with Transposon Sequencing.

Molecular oral microbiology
2019-02 | Journal article
DOI: 10.1111/omi.12256
PMID: 30739386
Contributors: Shields RC; Jensen PA
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central
grade
Preferred source (of 2)‎

Genomewide Identification of Essential Genes and Fitness Determinants of Streptococcus mutans UA159.

mSphere
2018 | Journal article
DOI: 10.1128/msphere.00031-18
PMID: 29435491
PMC: PMC5806208
Contributors: Shields RC; Zeng L; Culp DJ; Burne RA
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central
grade
Preferred source (of 2)‎

Intracellular Signaling by the comRS System in Streptococcus mutans Genetic Competence.

mSphere
2018-10 | Journal article
DOI: 10.1128/msphere.00444-18
PMID: 30381353
Contributors: Underhill SAM; Shields RC; Kaspar JR; Haider M; Burne RA; Hagen SJ
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central
grade
Preferred source (of 2)‎

Competence Inhibition by the XrpA Peptide Encoded Within the comX Gene of Streptococcus mutans.

Molecular microbiology
2018-05 | Journal article
DOI: 10.1111/mmi.13989
PMID: 29802741
Contributors: Kaspar J; Shields RC; Burne RA
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central
grade
Preferred source (of 2)‎

Genome-wide screens reveal new gene products that influence genetic competence in Streptococcus mutans.

Journal of bacteriology
2017-11 | Journal article
DOI: 10.1128/jb.00508-17
PMID: 29109185
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central
grade
Preferred source (of 2)‎

A new arginine-based dental adhesive system: formulation, mechanical and anti-caries properties.

Journal of dentistry
2017-08 | Journal article
DOI: 10.1016/j.jdent.2017.05.024
PMID: 28587978
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central

Intercellular communication via the comX-Inducing Peptide (XIP) of Streptococcus mutans.

Journal of bacteriology
2017-08 | Journal article
DOI: 10.1128/jb.00404-17
PMID: 28808131
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central

A Critical Role for Extracellular DNA in Dental Plaque Formation.

Journal of dental research
2017-02 | Journal article
DOI: 10.1177/0022034516675849
PMID: 27770039
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central

Growth of Streptococcus mutans in Biofilms Alters Peptide Signaling at the Sub-population Level.

Frontiers in microbiology
2016 | Journal article
DOI: 10.3389/fmicb.2016.01075
PMID: 27471495
PMC: PMC4946182
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central

Bidirectional signaling in the competence regulatory pathway of Streptococcus mutans.

FEMS microbiology letters
2015-10 | Journal article
DOI: 10.1093/femsle/fnv159
PMID: 26363019
PMC: PMC4809993
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central

Biofilms in chronic rhinosinusitis: what is new and where next?

The Journal of laryngology and otology
2015-08 | Journal article
DOI: 10.1017/s0022215115001620
PMID: 26120023
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central

Conserved and divergent functions of RcrRPQ in Streptococcus gordonii and S. mutans.

FEMS microbiology letters
2015-08 | Journal article
DOI: 10.1093/femsle/fnv119
PMID: 26229070
PMC: PMC4809977
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central

Efficacy of a marine bacterial nuclease against biofilm forming microorganisms isolated from chronic rhinosinusitis.

PloS one
2013 | Journal article
DOI: 10.1371/journal.pone.0055339
PMID: 23441151
PMC: PMC3575374
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central

Life after death: the critical role of extracellular DNA in microbial biofilms.

Letters in applied microbiology
2013-12 | Journal article
DOI: 10.1111/lam.12134
PMID: 23848166
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central

Removal of biofilms from tracheoesophageal speech valves using a novel marine microbial deoxyribonuclease.

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery
2012-09 | Journal article
DOI: 10.1177/0194599812442867
PMID: 22470159
Source: Self-asserted source
Robert C. Shields via Europe PubMed Central
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