Connections between transcriptional regulation and type III secretion?

abstract：:Sequestered from the action of complement, antibody and lytic peptides, phagosomal pathogens pose a unique problem for the innate immune system both in terms of detection and disposal. An immunologically induced 47-kDa (p47) GTPase family recruited to nascent phagosomes (PGs) has provided new insights into how vertebr...

journal_title：Current opinion in microbiology

authors： MacMicking JD

更新日期：2005-02-01 00:00:00

abstract：:Since 2003, dozens of giant viruses that infect amoebas (GVA), including mimiviruses and marseilleviruses, have been discovered. These giants appear to be common in our biosphere. From the onset, their presence and possible pathogenic role in humans have been serendipitously observed or investigated using a broad rang...

journal_title：Current opinion in microbiology

authors： Colson P,Aherfi S,La Scola B,Raoult D

更新日期：2016-06-01 00:00:00

abstract：:Translation of the genome into the proteome is a highly accurate biological process. However, the molecular mechanisms involved in protein synthesis are not error free and downstream protein quality control systems are needed to counteract the negative effects of translational errors (mistranslation) on proteome and c...

journal_title：Current opinion in microbiology

authors： Moura GR,Carreto LC,Santos MA

更新日期：2009-12-01 00:00:00

abstract：:Secretion systems play a central role in infectious diseases by enabling pathogenic bacteria to deliver virulence factors into target cells. The type VI secretion system (T6SS) mediates bacterial antagonism in various environments including eukaryotic niches, such as the gut. This molecular machine injects lethal toxi...

journal_title：Current opinion in microbiology

authors： Hachani A,Wood TE,Filloux A

更新日期：2016-02-01 00:00:00

abstract：:Molecular phylogenetic studies reveal that many endosymbioses between bacteria and invertebrate hosts result from ancient infections followed by strict vertical transmission within host lineages. Endosymbionts display a distinctive constellation of genetic properties including AT-biased base composition, accelerated s...

journal_title：Current opinion in microbiology

authors： Moran NA,Baumann P

更新日期：2000-06-01 00:00:00

abstract：:For many Gram-negative bacteria, like Brucella, the type IV secretion system (T4SS) has a critical role in bacterial virulence. In Brucella, the VirB T4SS permits the injection of bacterial effectors inside host cells, leading to subversion of signaling pathways and favoring bacterial growth and pathogenesis. The virB...

journal_title：Current opinion in microbiology

authors： Lacerda TL,Salcedo SP,Gorvel JP

更新日期：2013-02-01 00:00:00

abstract：:The central role of small RNAs in regulating bacterial gene expression has been elucidated in the past years. Typically, small RNAs act via specific basepairing with target mRNAs, leading to modulation of translation initiation and mRNA stability. Quantitative studies suggest that small RNA regulation is characterized...

journal_title：Current opinion in microbiology

authors： Levine E,Hwa T

更新日期：2008-12-01 00:00:00

abstract：:The continued evolution of antimicrobial resistance in the hospital and more recently in the community threatens to seriously compromise our ability to treat serious infections. The major success of the seven-valent Streptococcus pneumoniae vaccine at reducing both infection and resistance has been followed by the eme...

journal_title：Current opinion in microbiology

authors： Rice LB

更新日期：2009-10-01 00:00:00

abstract：:Recent studies have led to the identification of more than 50 small regulatory RNAs in Escherichia coli. Only a subset of these RNAs has been characterized. However, it is clear that many of the RNAs, such as the MicF, OxyS, DsrA, Spot42 and RyhB RNAs, act by basepairing to activate or repress translation or to destab...

journal_title：Current opinion in microbiology

authors： Storz G,Opdyke JA,Zhang A

更新日期：2004-04-01 00:00:00

abstract：:There has been a dramatic increase in the number of completely sequenced bacterial genomes during the past two years as a result of the efforts both of public genome agencies and the pharmaceutical industry. The availability of completely sequenced genomes permits more systematic analyses of genes, evolution and genom...

journal_title：Current opinion in microbiology

authors： Brutlag DL

更新日期：1998-06-01 00:00:00

abstract：:Clustered, regularly interspaced, short, palindromic repeats (CRISPR) loci, together with their CRISPR-associated (Cas) proteins, provide bacteria and archaea with adaptive immunity against invasion by bacteriophages, plasmids, and other mobile genetic elements. These host defenses impart selective pressure on phages ...

journal_title：Current opinion in microbiology

authors： Sontheimer EJ,Davidson AR

更新日期：2017-06-01 00:00:00

abstract：:A combination of structural, biochemical and functional studies with the flavivirus tick-borne encephalitis virus has revealed the characteristics of a new class of viral fusion protein, class II, that is unrelated to the class I viral fusion proteins for which influenza virus hemagglutinin is the prototype. New struc...

journal_title：Current opinion in microbiology

authors： Heinz FX,Allison SL

更新日期：2001-08-01 00:00:00

abstract：:Pneumococcal conjugate vaccine is not only effective against invasive and non-invasive disease in all ages but also has a significant impact on antibiotic-resistant infections since a number of resistant serotypes are targeted by the vaccine. Surveillance studies in the post-licensure years have shown an increase in n...

journal_title：Current opinion in microbiology

authors： McGee L

更新日期：2007-10-01 00:00:00

abstract：:Toxin-antitoxin (TA) systems are small genetic modules that are abundant in bacterial genomes. Three types have been described so far, depending on the nature and mode of action of the antitoxin component. While type II systems are surprisingly highly represented because of their capacity to move by horizontal gene tr...

journal_title：Current opinion in microbiology

authors： Van Melderen L

更新日期：2010-12-01 00:00:00

abstract：:All organisms must secure essential trace nutrients, including iron, zinc, manganese and copper for survival and proliferation. However, these very nutrients are also highly toxic if present at elevated levels. Mammalian immunity has harnessed both the essentiality and toxicity of micronutrients to defend against micr...

journal_title：Current opinion in microbiology

authors： Ballou ER,Wilson D

更新日期：2016-08-01 00:00:00

abstract：:Following concerns over the potential for insect resistance to insecticidal Bacillus thuringiensis toxins expressed in transgenic plants, there has been recent interest in novel biological insecticides. Over the past year there has been considerable progress in the cloning of several alternative toxin genes from the b...

journal_title：Current opinion in microbiology

authors： ffrench-Constant R,Bowen D

更新日期：1999-06-01 00:00:00

abstract：:Huge numbers of enzymes have evolved in nature to function in aqueous environments at moderate temperatures and neutral pH. This gives us, in principle, the unique opportunity to construct multistep reaction systems of considerable catalytic complexity in vitro. However, this opportunity is rarely exploited beyond res...

journal_title：Current opinion in microbiology

authors： Meyer A,Pellaux R,Panke S

更新日期：2007-06-01 00:00:00

abstract：:RNA sequencing has emerged as the premier approach to study bacterial transcriptomes. While the earliest published studies analyzed the data qualitatively, the data are readily digitized and lend themselves to quantitative analysis. High-resolution RNA sequence (RNA-seq) data allows transcriptional features (promoters...

journal_title：Current opinion in microbiology

authors： Creecy JP,Conway T

更新日期：2015-02-01 00:00:00

abstract：:Infections caused by Streptococcus pneumoniae are a major cause of morbidity and mortality in the pediatric population worldwide. Development of increasing resistance to multiple classes of antibiotics is making treatment of infections caused by this organism much more difficult. In order to prevent disease, a 23-vale...

journal_title：Current opinion in microbiology

authors： Tan TQ

更新日期：2000-10-01 00:00:00

abstract：:Wastewater bioreactors have been used to treat domestic and industrial waste for nearly a century. Development of molecular tools such as PCR and DNA microarrays have enabled identification and characterization of some of the microbes in these bioreactors; however, molecular characterization of the microbes is still i...

journal_title：Current opinion in microbiology

authors： Bramucci M,Nagarajan V

更新日期：2006-06-01 00:00:00

abstract：:Chemical communication between cells ensures coordination of behavior. In prokaryotes, this chemical communication is usually referred to as quorum sensing, while eukaryotic cells signal through hormones. In the past years, a growing number of reports have shown that bacterial quorum sensing signals, called autoinduce...

journal_title：Current opinion in microbiology

authors： Pacheco AR,Sperandio V

更新日期：2009-04-01 00:00:00

abstract：:Intracellular protozoans co-evolved with their mammalian host cells a range of strategies to cope with the composite and dynamic cell surface features they encounter during migration and infection. Therefore, these single-celled eukaryotic parasites represent a fascinating source of living probes for precisely capturi...

journal_title：Current opinion in microbiology

authors： Pavlou G,Milon G,Tardieux I

更新日期：2019-12-01 00:00:00

abstract：:Antibiotic lethality is a complex physiological process, sensitive to external cues. Recent advances using systems approaches have revealed how events downstream of primary target inhibition actively participate in antibiotic death processes. In particular, altered metabolism, translational stress and DNA damage each ...

journal_title：Current opinion in microbiology

authors： Yang JH,Bening SC,Collins JJ

更新日期：2017-10-01 00:00:00

abstract：:Pseudogenes are defined as fragments of once-functional genes that have been silenced by one or more nonsense, frameshift or missense mutations. Despite continuing increases in the speed of sequencing and annotating bacterial genomes, the identification and categorisation of pseudogenes remains problematic. Even when ...

journal_title：Current opinion in microbiology

authors： Goodhead I,Darby AC

更新日期：2015-02-01 00:00:00

abstract：:In this paper, we discuss recent advances in our knowledge of the dengue virus life cycle based on new structural data of the virus and its proteins. Specifically, we focus on the structure of the pre-membrane protein, prM and its role in virus assembly, the first full-length structure of a multi-domain dengue virus r...

journal_title：Current opinion in microbiology

authors： Perera R,Kuhn RJ

更新日期：2008-08-01 00:00:00

abstract：:Since the publication of the complete genome sequence of Mycobacterium tuberculosis in 1998, there has been a marked intensification and diversification of activities in the field of tuberculosis research. Among the areas that have advanced spectacularly are comparative genomics, functional genomics-notably the study ...

journal_title：Current opinion in microbiology

authors： Domenech P,Barry CE 3rd,Cole ST

更新日期：2001-02-01 00:00:00

abstract：:Natural hypersaline waters are widely distributed around the globe, as both continental surface waters and sea floor lakes, the latter being maintained by the large density difference between the hypersaline and overlying marine water. Owing to the extreme salt concentrations, close to or at saturation (approximately ...

journal_title：Current opinion in microbiology

authors： Porter K,Russ BE,Dyall-Smith ML

更新日期：2007-08-01 00:00:00

abstract：:Viruses attach to specific receptors, but identified receptors are often absent from the epithelial surfaces where infections begin. Viruses can bind to alternative receptor molecules present on epithelial surfaces and they can enter hosts in ways that bypass mucosal barriers to infection. To understand how viruses cr...

journal_title：Current opinion in microbiology

authors： Bergelson JM

更新日期：2003-08-01 00:00:00

abstract：:Bacteria of Shigella spp., the causative agents of shigellosis in humans, possess a repertoire of approximately 25-30 effectors injected into host cells by a type III secretion apparatus (T3SA). The T3SA activity is activated upon contact of bacteria with cells and controls expression of some effectors. Recent structu...

journal_title：Current opinion in microbiology

authors： Parsot C

更新日期：2009-02-01 00:00:00

abstract：:Antisense technology has been widely used to regulate gene expression. A tetracycline (tet)-regulated antisense-RNA-expressing system has been developed and used to downregulate chromosomally derived genes expressed in Staphylococcus aureus. This downregulation subsequently provides an evaluation of the virulence fact...

journal_title：Current opinion in microbiology

authors： Yin D,Ji Y

更新日期：2002-06-01 00:00:00