Marine nitrogen fixation: what's the fuss?

abstract：:Mycobacterium tuberculosis (Mtb) is highly immunogenic and appears to have evolved to preserve its antigenicity. The retention of antigenicity is important to the maintenance of a robust immune response that contributes greatly to the late-stage tissue damage required for transmission and completion of the pathogen's ...

journal_title：Current opinion in microbiology

authors： Russell DG

更新日期：2013-02-01 00:00:00

abstract：:Extracytoplasmic function σ factors (ECFs) represent a fundamental and widely distributed principle of bacterial signal transduction that connects the perception of a stimulus (input) with the induction of an appropriate set of genes (output). In recent years, comparative genomics analyses have not only allowed a syst...

journal_title：Current opinion in microbiology

authors： Mascher T

更新日期：2013-04-01 00:00:00

abstract：:Bacterial cell division takes place almost entirely below the diffraction limit of light microscopy, making super-resolution microscopy ideally suited to interrogating this process. I review how super-resolution microscopy has advanced our understanding of bacterial cell division. I discuss the mechanistic implication...

journal_title：Current opinion in microbiology

authors： Holden S

更新日期：2018-06-01 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：:Leishmania parasites are able to delay the onset of cell-mediated immunity by selectively impairing the ability of infected macrophages to produce interleukin (IL)-12. Leishmania infection arrests the JAK/STAT-mediated signal transduction involved in activation of the IL-12 p40 promoter; the phosphorylation defects ma...

journal_title：Current opinion in microbiology

authors： McDowell MA,Sacks DL

更新日期：1999-08-01 00:00:00

abstract：:Analyses of the complex regulatory networks leading to T cell survival, death, and immune deficiency have been aided in the past year by the dramatic development of new technologies to identify T cells and assess T cell function. These new techniques have shown that functional inactivation and apoptotic elimination of...

journal_title：Current opinion in microbiology

authors： Welsh RM,McNally JM

更新日期：1999-08-01 00:00:00

abstract：:Sexual development in filamentous ascomycetes requires mating-type genes to mediate recognition of compatible cell and nuclear types. Characterization of mating-type genes from various fungi shows that they primarily encode transcriptional regulators. Recent studies on mating-type-specific pheromones and internuclear ...

journal_title：Current opinion in microbiology

authors： Shiu PK,Glass NL

更新日期：2000-04-01 00:00:00

abstract：:In the study of transmembrane transport, molecular phylogeny provides a reliable guide to protein structure, catalytic and noncatalytic transport mechanisms, mode of energy coupling and substrate specificity. It also allows prediction of the evolutionary history of a transporter family, leading to estimations of its a...

journal_title：Current opinion in microbiology

authors： Saier MH

更新日期：1999-10-01 00:00:00

abstract：:Legionella pneumophila is a water-borne opportunistic pathogen causing a life-threatening pneumonia called 'Legionnaires' disease'. The Legionella quorum sensing (Lqs) system produces and responds to the α-hydroxyketone signaling molecule 3-hydroxypentadecane-4-one (Legionella autoinducer-1, LAI-1). The Lqs system con...

journal_title：Current opinion in microbiology

authors： Personnic N,Striednig B,Hilbi H

更新日期：2018-02-01 00:00:00

abstract：:The concept of 'protein function' is rather 'fuzzy' because it is often based on whimsical terms or contradictory nomenclature. This currently presents a challenge for functional genomics because precise definitions are essential for most computational approaches. Addressing this challenge, the notion of networks betw...

journal_title：Current opinion in microbiology

authors： Jansen R,Gerstein M

更新日期：2004-10-01 00:00:00

abstract：:We have now complete genome sequences of several pairs of closely related prokaryotes (conspecific strains or congeneric species). Surprisingly, even strains of the same species can differ by as much as 20% in gene content. Conceptual and methodological approaches for dealing with such diversity are now being develope...

journal_title：Current opinion in microbiology

authors： Boucher Y,Nesbø CL,Doolittle WF

更新日期：2001-06-01 00:00:00

abstract：:Signal termination in two-component systems occurs by loss of the phosphoryl group from the response regulator protein. This review explores our current understanding of the structures, catalytic mechanisms and means of regulation of the known families of phosphatases that catalyze response regulator dephosphorylation...

journal_title：Current opinion in microbiology

authors： Silversmith RE

更新日期：2010-04-01 00:00:00

abstract：:Activation of professional phagocytes with the concomitant generation of oxidant species is a medullar innate immune process for the control of acute Trypanosoma cruzi infection. Recent data reinforce the hypothesis that parasites more prepared to deal with the host-oxidative assault are more efficient for the establi...

journal_title：Current opinion in microbiology

authors： Piacenza L,Alvarez MN,Peluffo G,Radi R

更新日期：2009-08-01 00:00:00

abstract：:Quorum sensing is an important mechanism for the regulation of genes in many Gram-negative and Gram-positive bacteria. In the opportunistic pathogen Pseudomonas aeruginosa, the absence of one or more components of the quorum-sensing system results in a significant reduction in virulence. Recent advances in the past ye...

journal_title：Current opinion in microbiology

authors： Smith RS,Iglewski BH

更新日期：2003-02-01 00:00:00

abstract：:Gene clusters contributing to processes such as cell growth and pathogenicity are often controlled by two-component signal transduction systems (TCSs). Specific inhibitors against TCS systems work differently from conventional antibiotics, and developing them into new drugs that are effective against various drug-resi...

journal_title：Current opinion in microbiology

authors： Gotoh Y,Eguchi Y,Watanabe T,Okamoto S,Doi A,Utsumi R

更新日期：2010-04-01 00:00:00

abstract：:Pyrrolysine is an amino acid encoded by the amber codon in genes required for methylamine utilization by members of the Methanosarcinaceae. Pyrrolysine and selenocysteine share the distinction of being the only two non-canonical amino acids that have entered natural genetic codes. Recent experiments have shown that en...

journal_title：Current opinion in microbiology

authors： Krzycki JA

更新日期：2005-12-01 00:00:00

abstract：:Most studies of small regulatory RNAs in bacteria have focussed on conserved transcripts in intergenic regions. However, several recent developments including single-nucleotide resolution transcriptome profiling by RNA-seq and increased knowledge of the cellular targets of the RNA chaperone Hfq suggest that the bacter...

journal_title：Current opinion in microbiology

authors： Miyakoshi M,Chao Y,Vogel J

更新日期：2015-04-01 00:00:00

abstract：:It is well accepted that bacterial pathogens growing in a biofilm are recalcitrant to the action of most antibiotics and are resistant to the innate immune system. New treatment modalities are greatly warranted to effectively eradicate these infections. However, bacteria growing in a biofilm are metabolically unique i...

journal_title：Current opinion in microbiology

authors： Fey PD

更新日期：2010-10-01 00:00:00

abstract：:Sensing its changing environment is key for Vibrio cholerae when making the transition from an aquatic lifestyle to one more suited to a human host. An inverse correlation between motility and virulence gene expression has been reported, with the NADH : ubiquinone oxidoreductase system which powers motility by generat...

journal_title：Current opinion in microbiology

authors： Krukonis ES,DiRita VJ

更新日期：2003-04-01 00:00:00

abstract：:The Gram-positive pathogen Staphylococcus aureus poses a serious risk to public health due to its prevalence as a commensal organism, its ability to cause a multitude of diseases, and the increasing incidence of antibiotic resistant strains. S. aureus infects diverse niches within vertebrates despite being challenged ...

journal_title：Current opinion in microbiology

authors： Hammer ND,Skaar EP

更新日期：2012-02-01 00:00:00

abstract：:Despite the widespread availability of genome sequences and the systematic assignment of individual open reading frames, many of the activities of metabolic enzymes are still veiled. It is difficult to assign biochemical functions to enzymes and uncover the in vivo regulation of their enzymatic activities, but this is...

journal_title：Current opinion in microbiology

authors： Saito N,Ohashi Y,Soga T,Tomita M

更新日期：2010-06-01 00:00:00

abstract：:The Saccharomyces cerevisiae genome sequence, augmented by new data on gene expression and function, continues to yield new findings about eukaryote genome evolution. Analysis of the duplicate gene pairs formed by whole-genome duplication indicates that selection for increased levels of gene expression was a significa...

journal_title：Current opinion in microbiology

authors： Seoighe C,Wolfe KH

更新日期：1999-10-01 00:00:00

abstract：:Staphylococcus aureus is a leading cause of hospital-acquired and often persistent infections. A key feature of pathogenic S. aureus is the expression of an array of extracellular matrix-binding proteins. In particular, the fibronectin-binding proteins FnBP-A and FnBP-B afford the pathogen the ability to connect to ce...

journal_title：Current opinion in microbiology

authors： Hauck CR,Ohlsen K

更新日期：2006-02-01 00:00:00

abstract：:Associations between marine invertebrates and their cooperative bacterial symbionts offer access to an understanding of the roots of host-microbe interaction; for example, several symbioses like the squid-vibrio light organ association serve as models for investigating how each partner affects the developmental biolog...

journal_title：Current opinion in microbiology

authors： McFall-Ngai MJ,Ruby EG

更新日期：2000-12-01 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：:Several species of Archaea are involved in symbiotic or parasitic associations with representatives of Eukarya, Bacteria and other Archaea. Eukaryal interactions include different members of methanogens, found in the gut of arthropods, in the rumen of cattle, and in the human intestine, while Cenarchaeum symbiosum is ...

journal_title：Current opinion in microbiology

authors： Moissl-Eichinger C,Huber H

更新日期：2011-06-01 00:00:00

abstract：:Since the past decades, oligosaccharides are considered for their potential biological activities. To exploit them, it was essential to obtain pure molecules in large amounts. Several strategies were developed to produce specific sugar sequences with specific substitution patterns from land plants and algae polysaccha...

journal_title：Current opinion in microbiology

authors： Courtois J

更新日期：2009-06-01 00:00:00

abstract：:In response to starvation, myxobacteria build multicellular fruiting bodies that contain many thousands of cells and that have particular species-specific shapes. To coordinate fruiting body development, the myxobacterial cells signal to each other. The timing of and cellular responses to these signals help to give fo...

journal_title：Current opinion in microbiology

authors： Kaiser D

更新日期：1998-12-01 00:00:00

abstract：:There is accumulating evidence that motile bacteria are chemotactically attracted to environmental pollutants that they can degrade. Chemotaxis, the ability of motile bacteria to detect and respond to specific chemicals in the environment, can increase an organism's chances of locating useful sources of carbon, nitrog...

journal_title：Current opinion in microbiology

authors： Parales RE,Harwood CS

更新日期：2002-06-01 00:00:00

abstract：:Motile bacteria seek optimal living habitats by following gradients of attractant and repellent chemicals in their environment. The signaling machinery for these chemotactic behaviors, although assembled from just a few protein components, has extraordinary information-processing capabilities. Escherichia coli, the be...

journal_title：Current opinion in microbiology

authors： Parkinson JS,Ames P,Studdert CA

更新日期：2005-04-01 00:00:00