Ion and solute homeostasis in enteric bacteria: an integrated view generated from the interface of modelling and biological experimentation
Programme: SysMO
SEEK ID: https://fairdomhub.org/projects/4
Public web page: http://www.sysmo.net/index.php?index=56
Organisms: Escherichia coli
FAIRDOM PALs: Maria Rodriguez-Fernandez, Stefan Gayer
Project created: 15th Jan 2009
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Institutions: University of Aberdeen
Expertise: Mathematical modelling, Mathematical modelling of biosystems and bioprocesses
Tools: Computational and theoretical biology, ODE, linux, data modeling, enzymatic analyses, Stochastic models, C programming, Computational Systems Biology, Deterministic models, including:- Dynamic modelling- Parameter estimation- Optimal experimental design- Dynamic optimization
Expertise: Mathematical modelling, Statistically and biologically inspired optimization algorithms, Mathematical modelling of biosystems and bioprocesses, Dynamics and Control of Biological Networks, Parameter estimation
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We are very interested in applying a systems approach (i.e. model-based concepts and related computational tools) to problems from the biological domain. In particular, we are doing research in computational systems biology, targetting the following topics:
- Parameter estimation (inverse problems, model calibration) in biochemical pathways
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...
Projects: KOSMOBAC
Institutions: University of Aberdeen
Projects: KOSMOBAC
Institutions: University of Aberdeen
My research interests are in the physiology of bacteria subjected to stress. The focus of my recent research has been the structure and function of regulated transport systems and ion channels involved in cellular homeostasis. These transporters and channels respond to specific signals by a change in activity that either corrects the imposed stress or protects the cell during exposure to the stress. Our systems biology interests are in the interplay of different enzymes systems and transporters ...
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I am a PhD student working the group of Zoya Ignatova. Cellular and extracellular changes like crowding and osmotic stress conditions play a major role in protein aggregation. A change in the cytoplasmic composition is the result of an interplay between high osmotic pressures outside the cell volume and the cellular response to it in terms of uptake of K+ and secondary organic osmolytes. My research focuses on elucidating the role of natural osmolytes (known also as chemical chaperones or compatible ...
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I am a PhD student of the microbiology department at the Ludwig-Maximilians Universität München. I work at the chair of Prof. Kirsten Jung. The topic of our workpackage deals with "K+ homeostasis in Escherichia coli". In special I'm working on the sensor kinase KdpD that controls together with the response regulator KdpE the expression of the high-affinity K+ uptake system KdpFABC. The yet not fully understood molecular mechanism of stimulus perception and signal transduction is of particular ...
Projects: KOSMOBAC
Institutions: Max Planck Institute for Dynamics of Complex Technical Systems
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Institutions: University of Aberdeen
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Institutions: University of Aberdeen
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Institutions: Ludwig-Maximilians University of Munich
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Institutions: University of Aberdeen
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Institutions: University of Aberdeen
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Projects: KOSMOBAC
Institutions: University of Aberdeen
Projects: KOSMOBAC
Institutions: University of Aberdeen
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SysMO is a European transnational funding and research initiative on "Systems Biology of Microorganisms".
The goal pursued by SysMO was to record and describe the dynamic molecular processes going on in unicellular microorganisms in a comprehensive way and to present these processes in the form of computerized mathematical models.
Systems biology will raise biomedical and biotechnological research to a new quality level and contribute markedly to progress in understanding. Pooling European research ...
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Web page: http://sysmo.net/
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: 1 hidden item
Studies: 1 hidden item
Assays: 1 hidden item
A model to describe the effect of K+ uptake by KdpFABC on the two-component system KdpD/KdpE, which enables the identification of control principles of the Kdp system
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
A kinetic model that describess the activation of a dimeric efflux system that could bind either GSH or SLG
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Submitter: Lisbeth Lyngberg
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A model for translation elongation, which allows the prediction of how different conditions and parameters affect the rate and throughput of translation.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
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Studies: No Studies
Assays: No Assays
A model to describe aggregation of homomeric protein complexes in mechanosensitive channels in E.coli.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
Measurement of the transmembrane pH gradient and thus pHi, when the external pH is known.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
A procedure to analyse the genomic interaction of E.coli RNA polymerase (RNAP) upon methylglyoxal (MG) stress, a toxic keto-aldehyde by-product of metabolism.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
SOP used for detecting non influential parameters and interactions in non linear dynamical models. These parameters can be estabilished which allows the prioritization of parameters that can be subsequently estimated using robust global optimizations methods.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
The model describes the series of chemical reactions in MG detoxification pathway, allowing one to predict the flux of all compounds produced during detoxification.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
Mathematical model of pH buffering, which allows the prediction of how the buffering capacity depends on the cytoplasm's composition, for any number of buffers.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
Method of how to perform the purification of glyoxalase II as well as kinetics assays.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
A method of how to measure methylglyoxal present in the growth medium.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
Measurements of K+ retained in the cytoplasm using flame photometry.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
The fluorescent DNA-binding dye used in qRT-PCR binds to all kinds of double stranded DNA. To prevent false-positive results, the RNA is treated with DNase to remove remaining DNA.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
Quantitative real-time PRC is used to compare kdpFABC expression between the E. coli strains MG1655 (wildtype)and MG1655 (kdpA4, a kdpFABC-inactive mutant after a shift to K+ limitation.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
A method to compare kdpFABC expression between MG1655 (wildtype) and MG1655 (kdpA4) after a shift to K+ limitation, the RNA was extracted from samples taken at different points in time.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
Pulsed-FRAP measure the diffusion constants in confined volumes in small cells like E. coli and other bacteria or cellular organelles.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
A procedure to measure the levels of GSH and SLG before and after exposure to MG using formic acid. A similar expreimental set up as for potassium efflux experiments is used to which a silicon oil centrifugation step is incorporated. Samples are analysed by LC-MS-MS in order to quantify intracellular GSH and SLG levels.
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Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
The reverse transcriptase synthesizes DNA, which complements the mRNA template.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
To induce kdpFABC expression, cells are cultivated in K10 minimal medium (10mM K+) were shifted into K+ limiting growth medium (K0), containing 20 μM K+ by filtration.
Creator: Lisbeth Lyngberg
Submitter: Lisbeth Lyngberg
Investigations: No Investigations
Studies: No Studies
Assays: No Assays
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Date Published: 19th May 2011
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PubMed ID: 21586269
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DOI: 10.1111/j.1365-2958.2010.07201.x
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PubMed ID: 19487732
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