Streptococcus pneumoniae cells display an ovoid shape due to the coordinated synthesis of septal (for division) and peripheral (for elongation) peptidoglycan. Upon deletion of the gpsB gene, we show that cells aberrantly elongate together with hampered cell division. We have used this mutant as a trick to further decipher how the pneumococcus manages cell elongation before constriction and separation. We notably observe that elongated cells display a FtsZ helical organization. Together with other observations, we propose that a single peptidoglycan synthesis machinery organized by FtsZ is finely tuned to allow successful division and elongation of pneumococcal cells. See Fleurie et al.
Image Credit: Aurore Fleurie, Bases Moléculaires et Structurales des Systèmes Infectieux, Centre National de la Recherche Scientifique, Université Claude Bernard Lyon I, France.
Interview
In Pursuit of the Gene: An Interview with James Schwartz
PLOS Genetics: published April 17, 2014 | https://doi.org/10.1371/journal.pgen.1004308
Viewpoints
The Challenges of Mitochondrial Replacement
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Phenotype Ontologies and Cross-Species Analysis for Translational Research
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Epigenetic Regulation by Heritable RNA
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Research Articles
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RNA Editome in Rhesus Macaque Shaped by Purifying Selection
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A Central Role for GRB10 in Regulation of Islet Function in Man
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Protein Quantitative Trait Loci Identify Novel Candidates Modulating Cellular Response to Chemotherapy
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Cell Type-Specific Functions of Period Genes Revealed by Novel Adipocyte and Hepatocyte Circadian Clock Models
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Methylome Diversification through Changes in DNA Methyltransferase Sequence Specificity
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Synergistic Interactions between the Molecular and Neuronal Circadian Networks Drive Robust Behavioral Circadian Rhythms in Drosophila melanogaster
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Ras GTPase-Like Protein MglA, a Controller of Bacterial Social-Motility in Myxobacteria, Has Evolved to Control Bacterial Predation by Bdellovibrio
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The Caenorhabditis elegans Myc-Mondo/Mad Complexes Integrate Diverse Longevity Signals
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CNNM2 Mutations Cause Impaired Brain Development and Seizures in Patients with Hypomagnesemia
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DNA Glycosylases Involved in Base Excision Repair May Be Associated with Cancer Risk in BRCA1 and BRCA2 Mutation Carriers
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Statistical Power to Detect Genetic (Co)Variance of Complex Traits Using SNP Data in Unrelated Samples
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Interaction between Two Timing MicroRNAs Controls Trichome Distribution in Arabidopsis
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Sox5 Functions as a Fate Switch in Medaka Pigment Cell Development
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Widespread Use of Non-productive Alternative Splice Sites in Saccharomyces cerevisiae
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Chromatin Landscapes of Retroviral and Transposon Integration Profiles
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Determining the Control Circuitry of Redox Metabolism at the Genome-Scale
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Unexpected Role of the Steroid-Deficiency Protein Ecdysoneless in Pre-mRNA Splicing
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A LINE-1 Insertion in DLX6 Is Responsible for Cleft Palate and Mandibular Abnormalities in a Canine Model of Pierre Robin Sequence
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Interplay of the Serine/Threonine-Kinase StkP and the Paralogs DivIVA and GpsB in Pneumococcal Cell Elongation and Division
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The RNA-Binding Protein QKI Suppresses Cancer-Associated Aberrant Splicing
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The Mechanism of Gene Targeting in Human Somatic Cells
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Uncoupling Transcription from Covalent Histone Modification
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Transcription-Associated R-Loop Formation across the Human FMR1 CGG-Repeat Region
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Genome-Wide Diet-Gene Interaction Analyses for Risk of Colorectal Cancer
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Three Groups of Transposable Elements with Contrasting Copy Number Dynamics and Host Responses in the Maize (Zea mays ssp. mays) Genome
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Analysis of the Genome and Transcriptome of Cryptococcus neoformans var. grubii Reveals Complex RNA Expression and Microevolution Leading to Virulence Attenuation
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Fine Mapping of Dominant X-Linked Incompatibility Alleles in Drosophila Hybrids
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Genotypic and Functional Impact of HIV-1 Adaptation to Its Host Population during the North American Epidemic
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A Quality Control Mechanism Coordinates Meiotic Prophase Events to Promote Crossover Assurance
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Corrections
Correction: Mammalian E-type Cyclins Control Chromosome Pairing, Telomere Stability and CDK2 Localization in Male Meiosis
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