Assays

240 Assays visible to you, out of a total of 432
No description specified

Contributor: Theresa Kouril

Assay type: Experimental Assay

Technology type: Enzymatic activity measurements

Investigation: 1 hidden item

Study: 1 hidden item

Measurements of external metabolites based on growth curve data.
Flux estimates for uptake of external metabolites such as glucose and production rates for external metabolites lactate and acetate

Contributor: Niels Zondervan

Assay type: Experimental Assay

Technology type: Technology type

Investigation: 1 hidden item

Study: Metabolomics measurements

Simulation of double mutants and perturbations and time series samples using for Sample 1 only OE mutants of which we update the enzyme concentrations. For each second mutant the enzyme concentrations in case of OE and KO mutants in updated and the metabolite concentrations of the second sample are loaded in the model.
Using this approach the model approximately predicts combinatorial effects of OE mutations with other mutations, perturbations and time series concentrations.

Contributor: Niels Zondervan

Biological problem addressed: Modelling Analysis

Investigation: 1 hidden item

Study: Core model combinatorial predictions

No description specified

Genome scale metabolic model of Sulfolobus solfataricus
specific scenario: modelling of L-fucose degradation pathways

No description specified

Contributor: Ron Henkel

Biological problem addressed: Cell cycle

Investigation: Hands-on: Model Management in SEEK

Study: Hands-On: Tyson1991 - Cell Cycle 6 var

No description specified

S. pyogenes wildetype, an arcA- and a glnA-deletion mutants were grown in CDM-LAB cultures at pH 6.5 and 7.5 and at a growth rate of 0.05

In order to construct an in vivo-like buffer for S. pyogenes, the intracellular concentrations of Fe, K, Mg, Mn Na, P and S elements were determined via ICP-AES (inductively coupled plasma atomic emissionspectroscopy) method at the Institute of Land Use, University of Rostock. The samples for the analysis were obtained from a steady state culture grown on CDM-LAB with glucose.

Determination of essential amino acids for Streptococcus pyogenes

Pyruvate formate-lyase (PFL) is an important enzyme in the metabolic pathway of lactic acid bacteria (LAB) and is held responsible for the regulation of the shift between homolactic acid to mixed acid fermentation. PFL catalysis the reversible reaction of acetyl-CoA and formate into pyruvate and CoA. A glycyl radical, who is regenerated within the reaction, is involved; therefore, PFL works only under strictly anaerobic conditions. For its activation, the C-terminal domain has to bind to the
...

Contributor: Stefan Henrich

Biological problem addressed: Modelling Analysis

Investigation: The Attic

Study: Pyruvate formate-lyase (PFL)

S. pyogenes M49 (591), E. faecalis V583, and L. lacis NZ9000 and their isogenic ldh deletion mutants were grown glucose free CDM-LAB medium in BIOLOG phenotype microarray plates PM01 and PM02. With this assay the abilitiy of the strains to grow on 190 different carbon sources was determined in 96 well format.

Enzymes involved in butanediol formation from pyruvate in L. Lactis and E. faecalis were characterized with respect to their Km's for their substrates and their Vmaxes

Contributor: Martijn Bekker

Assay type: Experimental Assay

Technology type: Initial rate experiment

Investigation: The Attic

Study: Pre-liminary data from Martijn Bekker

Metabolic network of Enterococcus faecalis including primary metabolism, polysaccharide metabolism, purine and pyrimidine biosoynthesis, teichoic acid biosynthesis, fatty acid and phospholipid bioynthesis, amino acid metabolism, vitamins and cofactors

In this experiment we glucose-pulsed an E. faecalis cultures re-suspended in 100 mM MES buffer at pH 6.5. Samples were taken in time to study intra- and extracellular metabolites. These data are used to construct a kinetic model of the catqabolism of E. faecalis

In this experiment we glucose-pulsed an L. lactiss cultures re-suspended in 100 mM MES buffer at pH 6.5. Samples were taken in time to study intra- and extracellular metabolites. These data are used to construct a kinetic model of the catabolism of E. L. lactis

Km values of pyruvate kinase of different organisms without/with allosteric effector molecules collected from literature.

Contributor: Stefan Henrich

Assay type: Experimental Assay

Technology type: Technology type

Investigation: The Attic

Study: allosteric regulation of pyruvate kinase

Metabolic network of S. pyogenes including primary metabolism, polysaccharide metabolism, purine and pyrimidine biosoynthesis, teichoic acid biosynthesis, fatty acid and phospholipid bioynthesis, amino acid metabolism, vitamins and cofactors

Global sensitivity analysis of a kinetic model to determine the sensitivities for each parameter, over a wide parameter range. We used the elementary effects method.

Lumped kinetic model of L. lactis glycolysis, formulated with ordinary differential equations. Simulations are in line with experimental data

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