Search Results - "Jen, Freda E.‐C."
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Multidisciplinary Approaches Identify Compounds that Bind to Human ACE2 or SARS-CoV-2 Spike Protein as Candidates to Block SARS-CoV-2-ACE2 Receptor Interactions
Published in mBio (30-03-2021)“…Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a recently emerged virus that causes coronavirus infectious disease 2019 (COVID-19). SARS-CoV-2…”
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The biosynthesis and role of phosphorylcholine in pathogenic and nonpathogenic bacteria
Published in Trends in microbiology (Regular ed.) (01-07-2023)“…Phosphorylcholine (ChoP) is found in a variety of prokaryotic and eukaryotic organisms. It is now recognized as a critical modification of the surface…”
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The phospholipase A of Neisseria gonorrhoeae lyses eukaryotic membranes and is necessary for survival in neutrophils and cervical epithelial cells
Published in mBio (16-10-2024)“…Contact-dependent hemolysins are virulence factors in a number of human pathogens, including entero-invasive and . Here we demonstrate that produces an outer…”
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Neisseria gonorrhoeae pilin glycan contributes to CR3 activation during challenge of primary cervical epithelial cells
Published in Cellular microbiology (01-06-2011)“…Summary Expression of type IV pili by Neisseria gonorrhoeae plays a critical role in mediating adherence to human epithelial cells. Gonococcal pilin is…”
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Phase variation of DNA methyltransferases and the regulation of virulence and immune evasion in the pathogenic Neisseria
Published in Pathogens and disease (31-08-2017)“…Abstract The pathogenic Neisseria provide textbook examples of phase variation: the high frequency, random and reversible switching of gene expression…”
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The dCache Chemoreceptor TlpA of Helicobacter pylori Binds Multiple Attractant and Antagonistic Ligands via Distinct Sites
Published in mBio (31-08-2021)“…The Helicobacter pylori chemoreceptor TlpA plays a role in dampening host inflammation during chronic stomach colonization. TlpA has a periplasmic dCache_1…”
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Phasevarions Mediate Epigenetic Regulation of Antimicrobial Susceptibility in Neisseria meningitidis
Published in Antimicrobial agents and chemotherapy (01-07-2014)“…Phase variation is a common feature of host-adapted bacterial pathogens such as Neisseria meningitidis. Recently, we reported that this rapid on/off switching…”
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Glycointeractome of Neisseria gonorrhoeae: Identification of Host Glycans Targeted by the Gonococcus To Facilitate Adherence to Cervical and Urethral Epithelial Cells
Published in mBio (09-07-2019)“…is a significant threat to global health for which a vaccine and novel treatment options are urgently needed. Glycans expressed by human cells are commonly…”
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Epigenetic Regulation Alters Biofilm Architecture and Composition in Multiple Clinical Isolates of Nontypeable Haemophilus influenzae
Published in mBio (18-09-2018)“…Biofilms play a critical role in the colonization, persistence, and pathogenesis of many human pathogens. Multiple mucosa-associated pathogens have evolved a…”
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Dual pili post-translational modifications synergize to mediate meningococcal adherence to platelet activating factor receptor on human airway cells
Published in PLoS pathogens (01-05-2013)“…Pili of pathogenic Neisseria are major virulence factors associated with adhesion, twitching motility, auto-aggregation, and DNA transformation. Pili of N…”
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Refinement of immunizing antigens to produce functional blocking antibodies against the AniA nitrite reductase of Neisseria gonorrhoeae
Published in PloS one (03-08-2017)“…The emergence of multi-drug resistant Neisseria gonorrhoeae has generated an urgent need for novel therapies or a vaccine to prevent gonococcal disease. In…”
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The Neisseria gonorrhoeae Methionine Sulfoxide Reductase (MsrA/B) Is a Surface Exposed, Immunogenic, Vaccine Candidate
Published in Frontiers in immunology (06-02-2019)“…Control of the sexually transmitted infection gonorrhea is a major public health challenge, due to the recent emergence of multidrug resistant strains of , and…”
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Neisseria meningitidis Lacking the Major Porins PorA and PorB Is Viable and Modulates Apoptosis and the Oxidative Burst of Neutrophils
Published in Journal of proteome research (05-08-2016)“…The bacterial pathogen Neisseria meningitidis expresses two major outer-membrane porins. PorA expression is subject to phase-variation (high frequency, random,…”
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The Lst Sialyltransferase of Neisseria gonorrhoeae Can Transfer Keto-Deoxyoctanoate as the Terminal Sugar of Lipooligosaccharide: a Glyco-Achilles Heel That Provides a New Strategy for Vaccines to Prevent Gonorrhea
Published in mBio (23-03-2021)“…The lipooligosaccharide (LOS) of plays key roles in pathogenesis and is composed of multiple possible glycoforms. These glycoforms are generated by the process…”
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Phasevarions in Haemophilus influenzae biogroup aegyptius control expression of multiple proteins
Published in Microbiology spectrum (11-01-2024)“…biogroup is a human-adapted pathogen and the causative agent of Brazilian purpuric fever (BPF), an invasive disease with high mortality, that sporadically…”
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The glycointeractome of serogroup B Neisseria meningitidis strain MC58
Published in Scientific reports (18-07-2017)“…Neisseria meningitidis express numerous virulence factors that enable it to interact with diverse microenvironments within the host, during both asymptomatic…”
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Analysis of Bacterial Phosphorylcholine-Related Genes Reveals an Association between Type-Specific Biosynthesis Pathways and Biomolecules Targeted for Phosphorylcholine Modification
Published in Microbiology spectrum (17-08-2023)“…Many bacterial surface proteins and carbohydrates are modified with phosphorylcholine (ChoP), which contributes to host mimicry and can also promote…”
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Role of Neisseria meningitidis PorA and PorB expression in antimicrobial susceptibility
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Neisseria gonorrhoeae Becomes Susceptible to Polymyxin B and Colistin in the Presence of PBT2
Published in ACS infectious diseases (10-01-2020)“…Neisseria gonorrhoeae (N. gonorrhoeae) causes the sexually transmitted disease gonorrhea, which has a global incidence of 106 million cases per year. No…”
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New Perspectives on Escherichia coli Signal Peptidase I Substrate Specificity: Investigating Why the TasA Cleavage Site Is Incompatible with LepB Cleavage
Published in Microbiology spectrum (15-06-2023)“…Escherichia coli signal peptidase I (LepB) has been shown to inefficiently cleave secreted proteins with aromatic amino acids at the second position after the…”
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