The metabolic flux regulation of Klebsiella pneumoniae based on quorum sensing system.

Abstract:

:Quorum-sensing (QS) systems exist universally in bacteria to regulate multiple biological functions. Klebsiella pneumoniae, an industrially important bacterium that produces bio-based chemicals such as 2,3-butanediol and acetoin, can secrete a furanosyl borate diester (AI-2) as the signalling molecule mediating a QS system, which plays a key regulatory role in the biosynthesis of secondary metabolites. In this study, the molecular regulation and metabolic functions of a QS system in K. pneumoniae were investigated. The results showed that after the disruption of AI-2-mediated QS by the knockout of luxS, the production of acetoin, ethanol and acetic acid were relatively lower in the K. pneumoniae mutant than in the wild type bacteria. However, 2,3-butanediol production was increased by 23.8% and reached 54.93 g/L. The observed enhancement may be attributed to the improvement of the catalytic activity of 2,3-butanediol dehydrogenase (BDH) in transforming acetoin to 2,3-butanediol. This possibility is consistent with the RT-PCR-verified increase in the transcriptional level of budC, which encodes BDH. These results also demonstrated that the physiological metabolism of K. pneumoniae was adversely affected by a QS system. This effect was reversed through the addition of synthetic AI-2. This study provides the basis for a QS-modulated metabolic engineering study of K. pneumoniae.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Sun S,Zhang H,Lu S,Lai C,Liu H,Zhu H

doi

10.1038/srep38725

subject

Has Abstract

pub_date

2016-12-07 00:00:00

pages

38725

issn

2045-2322

pii

srep38725

journal_volume

6

pub_type

杂志文章
  • Alteration in glucose homeostasis and persistence of the pancreatic clock in aged mPer2Luc mice.

    abstract::The physiological function of the pancreas is controlled by the circadian clock. The aim of this study was to determine whether aging-induced changes in glucose homeostasis affect properties of the circadian clock in the pancreas and/or its sensitivity to disturbances in environmental lighting conditions. mPer2Luc mic...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-30225-y

    authors: Novosadová Z,Polidarová L,Sládek M,Sumová A

    更新日期:2018-08-03 00:00:00

  • Semi-supervised learning for potential human microRNA-disease associations inference.

    abstract::MicroRNAs play critical role in the development and progression of various diseases. Predicting potential miRNA-disease associations from vast amount of biological data is an important problem in the biomedical research. Considering the limitations in previous methods, we developed Regularized Least Squares for MiRNA-...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep05501

    authors: Chen X,Yan GY

    更新日期:2014-06-30 00:00:00

  • Increased pollinator service and reduced pollen limitation in the fixed dune populations of a desert shrub.

    abstract::Evaluations of restoration success usually focus on the structural aspects of ecosystems. Pollination, as an important functional aspect, is often overlooked. Here, the shifts in pollinator assemblage and pollen limitation in the desert shrub Caragana microphylla were examined along a restoration gradient in Horqin Sa...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-17253-w

    authors: Pan CC,Qu H,Feng Q,Liu LD,Zhao HL,Li YL,Li YQ,Zhang TH,Liu XP

    更新日期:2017-12-04 00:00:00

  • Erratum: Comparative Transcriptome Analysis Identifies Candidate Genes Related to Skin Color Differentiation in Red Tilapia.

    abstract::This corrects the article DOI: 10.1038/srep31347. ...

    journal_title:Scientific reports

    pub_type: 已发布勘误

    doi:10.1038/srep46979

    authors: Zhu W,Wang L,Dong Z,Chen X,Song F,Liu N,Yang H,Fu J

    更新日期:2018-05-11 00:00:00

  • Robustness and Vulnerability of Networks with Dynamical Dependency Groups.

    abstract::The dependency property and self-recovery of failure nodes both have great effects on the robustness of networks during the cascading process. Existing investigations focused mainly on the failure mechanism of static dependency groups without considering the time-dependency of interdependent nodes and the recovery mec...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep37749

    authors: Bai YN,Huang N,Wang L,Wu ZX

    更新日期:2016-11-28 00:00:00

  • MTFMT deficiency correlates with reduced mitochondrial integrity and enhanced host susceptibility to intracellular infection.

    abstract::Mitochondria behave as functional and structural hubs for innate defense against intracellular infection. While the mitochondrial membrane serves as a platform for the assembly of signaling complexes activated by intracellular infection, various danger molecules derived from impaired mitochondria activate innate signa...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-68053-8

    authors: Seo JH,Hwang CS,Yoo JY

    更新日期:2020-07-07 00:00:00

  • Influence of temperature change in donor corneas on postoperative endothelium cell density following endothelial transplantation.

    abstract::To examine the influence on postoperative endothelial cell density (ECD) caused by preoperative temperature change from 4 °C to room temperature in donor corneas for Descemet stripping automated endothelial keratoplasty (DSAEK). This retrospective, case-controlled comparison of 100 eyes that underwent DSAEK using impo...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-57614-6

    authors: Kakisu K,Yamaguchi T,Shimazaki J

    更新日期:2020-01-20 00:00:00

  • Bi-specific molecule against EGFR and death receptors simultaneously targets proliferation and death pathways in tumors.

    abstract::Developing therapeutics that target multiple receptor signaling pathways in tumors is critical as therapies targeting single specific biomarker/pathway have shown limited efficacy in patients with cancer. In this study, we extensively characterized a bi-functional molecule comprising of epidermal growth factor recepto...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-02483-9

    authors: Zhu Y,Bassoff N,Reinshagen C,Bhere D,Nowicki MO,Lawler SE,Roux J,Shah K

    更新日期:2017-06-01 00:00:00

  • Specific strains of Streptococcus mutans, a pathogen of dental caries, in the tonsils, are associated with IgA nephropathy.

    abstract::Streptococcus mutans is known to be a major causative agent of dental caries, and strains expressing the cell surface collagen-binding Cnm protein contribute to the development of several systemic diseases. A relationship between tonsillar immunity and glomerulonephritis has been recognized in IgA nephropathy (IgAN), ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-56679-2

    authors: Ito S,Misaki T,Naka S,Wato K,Nagasawa Y,Nomura R,Otsugu M,Matsumoto-Nakano M,Nakano K,Kumagai H,Oshima N

    更新日期:2019-12-27 00:00:00

  • Landau damping effects in the synchronization of conformist and contrarian oscillators.

    abstract::Two decades ago, a phenomenon resembling Landau damping was described in the synchronization of globally coupled oscillators: the evidence of a regime where the order parameter decays when linear theory predicts neutral stability for the incoherent state. We here show that such an effect is far more generic, as soon a...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep18235

    authors: Qiu T,Zhang Y,Liu J,Bi H,Boccaletti S,Liu Z,Guan S

    更新日期:2015-12-14 00:00:00

  • Radiation-induced changes in the glycome of endothelial cells with functional consequences.

    abstract::As it is altered by ionizing radiation, the vascular network is considered as a prime target in limiting normal tissue damage and improving tumor control in radiation therapy. Irradiation activates endothelial cells which then participate in the recruitment of circulating cells, especially by overexpressing cell adhes...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-05563-y

    authors: Jaillet C,Morelle W,Slomianny MC,Paget V,Tarlet G,Buard V,Selbonne S,Caffin F,Rannou E,Martinez P,François A,Foulquier F,Allain F,Milliat F,Guipaud O

    更新日期:2017-07-13 00:00:00

  • Personalized structural image analysis in patients with temporal lobe epilepsy.

    abstract::Volumetric and morphometric studies have demonstrated structural abnormalities related to chronic epilepsies on a cohort- and population-based level. On a single-patient level, specific patterns of atrophy or cortical reorganization may be widespread and heterogeneous but represent potential targets for further person...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-10707-1

    authors: Rummel C,Slavova N,Seiler A,Abela E,Hauf M,Burren Y,Weisstanner C,Vulliemoz S,Seeck M,Schindler K,Wiest R

    更新日期:2017-09-07 00:00:00

  • Osteostimulatory effect of biocomposite scaffold containing phytomolecule diosmin by Integrin/FAK/ERK signaling pathway in mouse mesenchymal stem cells.

    abstract::Non-availability of an ideal alternative for autografts in treating critical-size bone defects is a major challenge in orthopedics. Phytocompounds have been proven to enhance osteogenesis via various osteogenic signaling pathways, but its decreased bioavailability and increased renal clearance limit its application. I...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-48429-1

    authors: Chandran SV,Vairamani M,Selvamurugan N

    更新日期:2019-08-15 00:00:00

  • Uncovering ferroelectric polarization in tetragonal (Bi1/2K1/2)TiO3-(Bi1/2Na1/2)TiO3 single crystals.

    abstract::We report the robust ferroelectric properties of (1 - x)(Bi1/2Na1/2)TiO3-x(Bi1/2K1/2)TiO3 (x = 33%) single crystals grown by a top-seeded solution growth process under a high oxygen-pressure (0.9 MPa) atmosphere. The sample exhibit a large remanent polarization of 48 μC/cm2 and a sizeable piezoelectric strain constant...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-55576-y

    authors: Kitanaka Y,Noguchi Y,Miyayama M

    更新日期:2019-12-17 00:00:00

  • Stable ICG-loaded upconversion nanoparticles: silica core/shell theranostic nanoplatform for dual-modal upconversion and photoacoustic imaging together with photothermal therapy.

    abstract::We report here the design and multiple functions of a new hierarchical nanotheronostic platform consisting of an upconversion nanoparticle (UCNP) core: shell with an additional mesoporous silica (mSiO2) matrix load shell containing sealed, high concentration of ICG molecules. We demonstrate that this UCNP@mSiO2-ICG na...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-16016-x

    authors: Lv R,Wang D,Xiao L,Chen G,Xia J,Prasad PN

    更新日期:2017-11-16 00:00:00

  • Phonatory and articulatory representations of speech production in cortical and subcortical fMRI responses.

    abstract::Speaking involves coordination of multiple neuromotor systems, including respiration, phonation and articulation. Developing non-invasive imaging methods to study how the brain controls these systems is critical for understanding the neurobiology of speech production. Recent models and animal research suggest that reg...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-61435-y

    authors: Correia JM,Caballero-Gaudes C,Guediche S,Carreiras M

    更新日期:2020-03-11 00:00:00

  • Anti-HERV-WEnv antibodies are correlated with seroreactivity against Mycobacterium avium subsp. paratuberculosis in children and youths at T1D risk.

    abstract::Recent evidence points at the role that human endogenous retroviruses (HERVs) may play through the activation of genes integrated across the human genome. Although a variety of genetic/epigenetic mechanisms maintain most HERVs silenced, independent environmental stimuli including infections may transactivate endogenou...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-42788-5

    authors: Niegowska M,Wajda-Cuszlag M,Stępień-Ptak G,Trojanek J,Michałkiewicz J,Szalecki M,Sechi LA

    更新日期:2019-04-18 00:00:00

  • Spatiotemporal patterns of extreme sea levels along the western North-Atlantic coasts.

    abstract::The western North-Atlantic coast experienced major coastal floods in recent years. Coastal floods are primarily composed of tides and storm surges due to tropical (TCs) and extra-tropical cyclones (ETCs). We present a reanalysis from 1988 to 2015 of extreme sea levels that explicitly include TCs for the western North-...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-40157-w

    authors: Muis S,Lin N,Verlaan M,Winsemius HC,Ward PJ,Aerts JCJH

    更新日期:2019-03-04 00:00:00

  • HCV-specific CD4+ T cells of patients with acute and chronic HCV infection display high expression of TIGIT and other co-inhibitory molecules.

    abstract::The combined regulation of a network of inhibitory and activating T cell receptors may be a critical step in the development of chronic HCV infection. Ex vivo HCV MHC class I + II tetramer staining and bead-enrichment was performed with baseline and longitudinal PBMC samples of a cohort of patients with acute, chronic...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-47024-8

    authors: Ackermann C,Smits M,Woost R,Eberhard JM,Peine S,Kummer S,Marget M,Kuntzen T,Kwok WW,Lohse AW,Jacobs T,Boettler T,Schulze Zur Wiesch J

    更新日期:2019-07-23 00:00:00

  • The strange flight behaviour of slowly spinning soccer balls.

    abstract::The strange three-dimensional flight behaviour of slowly spinning soccer balls is one of the most interesting and unknown phenomenon associated with the trajectories of sports balls. Many spectators have experienced numerous exciting and emotional instances while observing the curious flight behaviour of these balls. ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep01871

    authors: Mizota T,Kurogi K,Ohya Y,Okajima A,Naruo T,Kawamura Y

    更新日期:2013-01-01 00:00:00

  • Core-shell structured titanium-nitrogen alloys with high strength, high thermal stability and good plasticity.

    abstract::Multifunctional materials with more than two good properties are widely required in modern industries. However, some properties are often trade-off with each other by single microstructural designation. For example, nanostructured materials have high strength, but low ductility and thermal stability. Here by means of ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep40039

    authors: Zhang YS,Zhao YH,Zhang W,Lu JW,Hu JJ,Huo WT,Zhang PX

    更新日期:2017-01-06 00:00:00

  • Close relationship between a dry-wet transition and a bubble rearrangement in two-dimensional foam.

    abstract::Liquid foams are classified into a dry foam and a wet foam, empirically judging from the liquid fraction or the shape of the gas bubbles. It is known that physical properties such as elasticity and diffusion are different between the dry foam and the wet foam. Nevertheless, definitions of those states have been vague ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep37506

    authors: Furuta Y,Oikawa N,Kurita R

    更新日期:2016-11-22 00:00:00

  • Spatiotemporal regulation of liver development by the Wnt/β-catenin pathway.

    abstract::While the Wnt/β-catenin pathway plays a critical role in the maintenance of the zonation of ammonia metabolizing enzymes in the adult liver, the mechanisms responsible for inducing zonation in the embryo are not well understood. Herein we address the spatiotemporal role of the Wnt/β-catenin pathway in the development ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-20888-y

    authors: Burke ZD,Reed KR,Yeh SW,Meniel V,Sansom OJ,Clarke AR,Tosh D

    更新日期:2018-02-09 00:00:00

  • Skyrmionium - high velocity without the skyrmion Hall effect.

    abstract::The lateral motion of a magnetic skyrmion, arising because of the skyrmion Hall effect, imposes a number of restrictions on the use of this spin state in the racetrack memory. A skyrmionium is a more promising spin texture for memory applications, since it has zero total topological charge and propagates strictly alon...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-34934-2

    authors: Kolesnikov AG,Stebliy ME,Samardak AS,Ognev AV

    更新日期:2018-11-16 00:00:00

  • Evidence and mapping of extinction debts for global forest-dwelling reptiles, amphibians and mammals.

    abstract::Evidence of extinction debts for the global distributions of forest-dwelling reptiles, mammals and amphibians was tested and the debt magnitude was estimated and mapped. By using different correlation tests and variable importance analysis, the results showed that spatial richness patterns for the three forest-dwellin...

    journal_title:Scientific reports

    pub_type: 历史文章,杂志文章

    doi:10.1038/srep44305

    authors: Chen Y,Peng S

    更新日期:2017-03-16 00:00:00

  • Interaction between temperature and sublethal infection with the amphibian chytrid fungus impacts a susceptible frog species.

    abstract::The amphibian chytrid fungus Batrachochytrium dendrobatidis is an emerging infectious pathogen present on every continent except Antarctica. It causes the disease chytridiomycosis in a subset of species but does not always result in disease or death for every host. Ambient temperature influences both amphibian metabol...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-35874-7

    authors: Campbell L,Bower DS,Clulow S,Stockwell M,Clulow J,Mahony M

    更新日期:2019-01-14 00:00:00

  • An fMRI-compatible force measurement system for the evaluation of the neural correlates of step initiation.

    abstract::Knowledge of brain correlates of postural control is limited by the technical difficulties in performing controlled experiments with currently available neuroimaging methods. Here we present a system that allows the measurement of anticipatory postural adjustment of human legs to be synchronized with the acquisition o...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep43088

    authors: de Lima-Pardini AC,de Azevedo Neto RM,Coelho DB,Boffino CC,Shergill SS,de Oliveira Souza C,Brant R,Barbosa ER,Cardoso EF,Teixeira LA,Cohen RG,Horak FB,Amaro E Jr

    更新日期:2017-02-23 00:00:00

  • Differential proteomics profiling of the ova between healthy and Rice stripe virus-infected female insects of Laodelphax striatellus.

    abstract::Rice stripe virus-infected females of the small brown planthopper (SBPH, Laodelphax striatellus) usually lay fewer eggs with a longer hatch period, low hatchability, malformation and retarded or defective development compared with healthy females. To explore the molecular mechanism of those phenomena, we analyzed the ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep27216

    authors: Liu B,Qin F,Liu W,Wang X

    更新日期:2016-06-09 00:00:00

  • The Anopheles coluzzii microbiome and its interaction with the intracellular parasite Wolbachia.

    abstract::Wolbachia, an endosymbiotic alpha-proteobacterium commonly found in insects, can inhibit the transmission of human pathogens by mosquitoes. Biocontrol programs are underway using Aedes aegypti mosquitoes trans-infected with a non-natural Wolbachia strain to reduce dengue virus transmission. Less is known about the imp...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-70745-0

    authors: Straub TJ,Shaw WR,Marcenac P,Sawadogo SP,Dabiré RK,Diabaté A,Catteruccia F,Neafsey DE

    更新日期:2020-08-14 00:00:00

  • Alcohol consumption promotes colorectal carcinoma metastasis via a CCL5-induced and AMPK-pathway-mediated activation of autophagy.

    abstract::There is a definite relationship between alcohol consumption and colorectal cancer (CRC) development. We investigated effect of alcohol consumption on CRC patients' progression and prognosis by utilizing epidemiological data and found patients with alcohol consumption increased risks of tumor-node-metastasis (TNM), or...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-26856-w

    authors: Zhao H,Chen D,Cao R,Wang S,Yu D,Liu Y,Jiang Y,Xu M,Luo J,Wang S

    更新日期:2018-06-05 00:00:00