Characterization of mutant strains with defects in sugar transport systems

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 ...

"Systems Understanding of Microbial Oxygen responses" (SUMO) investigates how Escherichia coli senses oxygen, or the associated changes in oxidation/reduction balance, via the Fnr and ArcA proteins, how these systems interact with other regulatory systems, and how the redox response of an E. coli population is generated from the responses of single cells. There are five sub-projects to determine system properties and behaviour and three sub-projects to employ different and complementary modelling ...

In Escherichia coli several systems are known to transport glucose into the cytoplasm. A series of mutant strains were constructed, which lack one or more of these uptake systems. These were analyzed in aerobic and anaerobic batch cultures, as well as glucose limited continuous cultivations.

Glucose transporter mutants were analyzed under aerobic and aerobic conditions in batch cultures with glucose as substrate. Acetate formation rates and glucose consumption rates were measured, as well as extracellular cAMP concentrations.

Mutant strains which lack one or more of the glucose transport systems were analyzed in aerobic chemostat cultures and compared to batch cultures.

MG1655 and mutant strains with defects in glucose transport systems were analyzed in aerobic and anaerobic batch cultures.

Using TFinfer2 to analyse data from "Characterization of MG1655 and mutant strains under conditions of glucose excess and limitation"

Measurement of by-product formation rates, substrate consumption rates and extracellular concentrations of cAMP under aerobic batch conditions with glucose as substrate.

Transcription of glucose uptake transport systems in a mutant background under anaerobic batch conditions.

Transcription of glucose uptake transport systems in a mutant background under aerobic batch conditions.

Measurement of by-product formation rates, substrate consumption rates and extracellular concentrations of cAMP under anaerobic batch conditions with glucose as substrate.

This file describes how to isolate mRNA from E. coli using the kit from Epicentre, for gene expression analysis via RT-PCR

This document describes the chemostat conditions to run comparable experiments in different bioreactors in different labs.