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Table of Contents

May 2021; Volume 203,Issue 9

Spotlight

  • Free
    Articles of Significant Interest in This Issue
    Spotlight
    Articles of Significant Interest in This Issue

Minireview

  • If You Eat It or Secrete It, They Will Grow: the Expanding List of Nutrients Utilized by Human Gut Bacteria
    Minireview
    If You Eat It or Secrete It, They Will Grow: the Expanding List of Nutrients Utilized by Human Gut Bacteria

    In order to persist, successful bacterial inhabitants of the human gut need to adapt to changing nutrient conditions, which are influenced by host diet and a variety of other factors. For members of the Bacteroidetes and several other phyla, this has resulted in the diversification of a variety of enzyme-based systems that equip them to sense and utilize carbohydrate-based nutrients from host, diet, and bacterial origins.

    ...
    Robert W. P. Glowacki, Eric C. Martens

Research Articles

  • Role of the N- and C-Terminal Regions of FliF, the MS Ring Component in the <em>Vibrio</em> Flagellar Basal Body
    Research Article
    Role of the N- and C-Terminal Regions of FliF, the MS Ring Component in the Vibrio Flagellar Basal Body

    The bacterial flagellum is a supramolecular architecture involved in cell motility. At the base of the flagella, a rotary motor that begins to construct an MS ring in the cytoplasmic membrane comprises 34 transmembrane proteins (FliF).

    Seiji Kojima, Hiroki Kajino, Keiichi Hirano, Yuna Inoue, Hiroyuki Terashima, Michio Homma
  • Regulated Cleavage of Glycan Strands by the Murein Hydrolase SagB in <span class="named-content genus-species" id="named-content-1">Staphylococcus aureus</span> Involves a Direct Interaction with LyrA (SpdC)
    Research Article
    Regulated Cleavage of Glycan Strands by the Murein Hydrolase SagB in Staphylococcus aureus Involves a Direct Interaction with LyrA (SpdC)

    Peptidoglycan is assembled on the trans side of the plasma membrane from lipid II precursors into glycan chains that are cross-linked at stem peptides. In S. aureus, SagB, a membrane-associated N-acetylglucosaminidase, cleaves polymerized glycan chains to their physiological length.

    Stephanie Willing, Olaf Schneewind, Dominique Missiakas
  • Site-Directed Cross-Linking Identifies the Stator-Rotor Interaction Surfaces in a Hybrid Bacterial Flagellar Motor
    Research Article | Spotlight
    Site-Directed Cross-Linking Identifies the Stator-Rotor Interaction Surfaces in a Hybrid Bacterial Flagellar Motor

    The bacterial flagellum is a unique organelle that functions as a rotary motor. The interaction between the stator and rotor is indispensable for stator assembly into the motor and the generation of motor torque.

    Hiroyuki Terashima, Seiji Kojima, Michio Homma
  • Effect of Membrane Potential on Entry of Lactoferricin B-Derived 6-Residue Antimicrobial Peptide into Single <span class="named-content genus-species" id="named-content-1">Escherichia coli</span> Cells and Lipid Vesicles
    Research Article
    Effect of Membrane Potential on Entry of Lactoferricin B-Derived 6-Residue Antimicrobial Peptide into Single Escherichia coli Cells and Lipid Vesicles

    Bacterial cells have a membrane potential (Δφ), but the effect of Δφ on the action of cell-penetrating peptide-type antimicrobial peptides (AMPs) is not clear. Here, we investigated the effect of Δφ on the action of a fluorescent probe-labeled AMP derived from lactoferricin B, Rh-LfcinB(4–9).

    Farzana Hossain, Hideo Dohra, Masahito Yamazaki
  • Stress-Induced Block in Dicarboxylate Uptake and Utilization in <span class="named-content genus-species" id="named-content-1">Salmonella enterica</span> Serovar Typhimurium
    Research Article
    Stress-Induced Block in Dicarboxylate Uptake and Utilization in Salmonella enterica Serovar Typhimurium

    Bacteria have evolved to sense and respond to their environment to maximize their chance of survival. By studying differences in the responses of pathogenic bacteria and closely related nonpathogens, we can gain insight into what environments they encounter inside of an infected host.

    Steven J. Hersch, Bojana Radan, Bushra Ilyas, Patrick Lavoie, William Wiley Navarre
  • Identification of Potential Regulatory Domains within the MreC and MreD Components of the Cell Elongation Machinery
    Research Article | Spotlight
    Identification of Potential Regulatory Domains within the MreC and MreD Components of the Cell Elongation Machinery

    Cell shape in bacteria is largely determined by the cell wall structure that surrounds them. The multiprotein machine called the Rod system (elongasome) has long been implicated in rod shape determination in bacilli.

    Patricia D. A. Rohs, Jeanna M. Qiu, Grasiela Torres, Mandy D. Smith, Elayne M. Fivenson, Thomas G. Bernhardt
  • The <span class="named-content genus-species" id="named-content-1">Coxiella burnetii</span> QpH1 Plasmid Is a Virulence Factor for Colonizing Bone Marrow-Derived Murine Macrophages
    Research Article
    The Coxiella burnetii QpH1 Plasmid Is a Virulence Factor for Colonizing Bone Marrow-Derived Murine Macrophages

    All C. burnetii isolates carry one of four large, conserved, autonomously replicating plasmids or a plasmid-like chromosomally integrated sequence. The plasmid is a candidate virulence factor of unknown function.

    Shengdong Luo, Shanshan Lu, Huahao Fan, Zeliang Chen, Zhihui Sun, Yan Hu, Ruisheng Li, Xiaoping An, Vladimir N. Uversky, Yigang Tong, Lihua Song
  • Formaldehyde-Responsive Proteins TtmR and EfgA Reveal a Trade-off between Formaldehyde Resistance and Efficient Transition to Methylotrophy in <span class="named-content genus-species" id="named-content-1">Methylorubrum extorquens</span>
    Research Article
    Formaldehyde-Responsive Proteins TtmR and EfgA Reveal a Trade-off between Formaldehyde Resistance and Efficient Transition to Methylotrophy in Methylorubrum extorquens

    All organisms produce formaldehyde as a by-product of enzymatic reactions and as a degradation product of metabolites. The ubiquity of formaldehyde in cellular biology suggests all organisms have evolved mechanisms of mitigating formaldehyde toxicity.

    Jannell V. Bazurto, Eric L. Bruger, Jessica A. Lee, Leah B. Lambert, Christopher J. Marx
  • Impact of Activation of the Neotrehalosadiamine/Kanosamine Biosynthetic Pathway on the Metabolism of <span class="named-content genus-species" id="named-content-1">Bacillus subtilis</span>
    Research Article
    Impact of Activation of the Neotrehalosadiamine/Kanosamine Biosynthetic Pathway on the Metabolism of Bacillus subtilis

    Autoinducers enable bacteria to sense cell density and to coordinate collective behavior. NTD/kanosamine is an autoinducer produced by B. subtilis and several close relatives, although its physiological function remains unknown.

    Natsumi Saito, Huong Minh Nguyen, Takashi Inaoka
  • Structural Insight into the Role of the PAS Domain for Signal Transduction in Sensor Kinase BvgS
    Research Article
    Structural Insight into the Role of the PAS Domain for Signal Transduction in Sensor Kinase BvgS

    The whooping cough agent Bordetella pertussis colonizes the human respiratory tract by using virulence factors coregulated by the sensory transduction system BvgAS. BvgS is a model for a family of sensor kinase proteins, some of which are found in important bacterial pathogens.

    Elian Dupré, Bernard Clantin, Youhua Yuan, Sophie Lecher, Elodie Lesne, Rudy Antoine, Vincent Villeret, Françoise Jacob-Dubuisson
  • Inactivation of the Pta-AckA Pathway Impairs Fitness of <span class="named-content genus-species" id="named-content-1">Bacillus anthracis</span> during Overflow Metabolism
    Research Article
    Inactivation of the Pta-AckA Pathway Impairs Fitness of Bacillus anthracis during Overflow Metabolism

    B. anthracis, the etiological agent of anthrax, is a highly pathogenic, spore-forming bacterium that causes acute, life-threatening disease in both humans and livestock. A greater understanding of the metabolic determinants governing the fitness of B. anthracis is essential for the development of...

    Harim I. Won, Sean M. Watson, Jong-Sam Ahn, Jennifer L. Endres, Kenneth W. Bayles, Marat R. Sadykov
  • EloR Interacts with the Lytic Transglycosylase MltG at Midcell in <span class="named-content genus-species" id="named-content-1">Streptococcus pneumoniae</span> R6
    Research Article | Spotlight
    EloR Interacts with the Lytic Transglycosylase MltG at Midcell in Streptococcus pneumoniae R6

    Bacterial cell division has been a successful target for antimicrobial agents for decades. How different pathogens regulate cell division is, however, poorly understood.

    Anja Ruud Winther, Morten Kjos, Marie Leangen Herigstad, Leiv Sigve Håvarstein, Daniel Straume

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Journal of Bacteriology: 203 (9)

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volume 203, issue 9
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  • Understanding the Genetic Code
  • Posttranscriptional Regulation of tnaA by Protein-RNA Interaction Mediated by Ribosomal Protein L4 in Escherichia coli
  • Targeting the Achilles’ Heel of Bacteria: Different Mechanisms To Break Down the Peptidoglycan Cell Wall during Bacterial Warfare
  • Light Modulates the Physiology of Nonphototrophic Actinobacteria
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