ArticleMetallomics : integrated biometal science2020
Article in Metallomics : integrated biometal science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
10 citing papers in PubMed, 14 citations in OpenAlex.
- Article
- The global transcriptional regulator MgaSpn affects the virulence of Streptococcus pneumoniae by regulating PcpA.BMC microbiology · 2025Article
- Bacterial acquisition of host fatty acids has far-reaching implications on virulence.Microbiology and molecular biology reviews : MMBR · 2024Review
- Comparative Transcriptome Analysis of Shiga Toxin-ProducingMicroorganisms · 2023Article
- Calorimetric analysis of AdcR and its interactions with zinc(II) and DNA.Journal of inorganic biochemistry · 2023Article
- Metal Homeostasis in Pathogenic Streptococci.Microorganisms · 2022Review
- Regulatory cross-talk supports resistance to Zn intoxication in Streptococcus.PLoS pathogens · 2022Article
- The Copper Resistome of Group B Streptococcus Reveals Insight into the Genetic Basis of Cellular Survival during Metal Ion Stress.Journal of bacteriology · 2022Article
- SPD_0090 Negatively Contributes to Virulence ofFrontiers in microbiology · 2022Article
- Manganese Depletion Leads to Multisystem Changes in the Transcriptome of the Opportunistic PathogenFrontiers in microbiology · 2020Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
Streptococcus pneumoniae colonizes the human nasopharyngeal mucosa and is a leading cause of community-acquired pneumonia, acute otitis media, and bacterial meningitis. Metal ion homeostasis is vital to the survival of this pathogen across diverse biological sites and contributes significantly to colonization and invasive disease. Microarray and qRT-PCR analysis revealed an upregulation of an uncharacterized operon (SP1433-1438) in pneumococci subjected to metal-chelation by N,N,N',N'-tetrakis-(2-pyridylmethyl)ethylenediamine (TPEN). Supplementation of zinc, cobalt, and nickel following TPEN treatment significantly abrogated induction. BLASTP comparisons and protein topology analysis predicted this locus to encode components of ATP binding cassette (ABC) transporters involved in multidrug resistance (SP1434-1435) and energy-coupling factor (ECF) transporters (SP1436-1438). Inductively coupled plasma mass spectrometry (ICP-MS) analysis identified differences in intracellular metal content in a Δ1434-8 mutant strain compared to parental T4R. Further, analysis of the secreted metabolome of WT and Δ1434-8 strains identified significant changes in pneumococcal glycolytic and amino acid metabolic pathways, indicating a shift towards mixed acid fermentation. Additionally, proteomic analysis revealed differentially expressed proteins in the Δ1434-8 mutant strain, with nearly 20% regulated by the global catabolite repressor, CcpA. Based on these findings, we propose that the transporters encoded by SP1433-1438 are involved in regulating the central metabolism of S. pneumoniae and contributing to bacterial survival during metal stress.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.