We here describe our attempts to reverse-engineer the SAC network based on gene deletion phenotypes.
For example, physical interaction studies in yeast have allowed comparison of connectivity to gene essentiality based on gene deletion.
To overcome these limitations, we have developed a new approach (OptORF) for identifying metabolic engineering strategies based on gene deletion and overexpression.
All the deletions were simulated based on gene deletions and not reaction deletions, and yields were plotted to normalize the fluxes to changes in glucose uptake rate which occured during adaptive evolution.
For example, gene network reconstruction algorithms that may work very well in prokaryotes do not translate to eukaryotes, and data based on gene deletions have to be treated differently than data based on gene overexpression in network inference tasks.
We also added a genome evolutionary model based on gene insertions/deletions only.
It is interesting that the approaches targeting genetic polymorphisms within conserved genes and those targeting genetic changes based on gene insertion/deletion events converge to give a similar picture of E. coli O157 H7 strain relationships.
The construction of acyltransferase deletion mutants was based on the gene deletion strategy described by Wach [29].
First, epistatic interactions used here were inferred from high-throughput experiments, which were mostly based on double gene deletion mutants.
In the 4-aminobenzenesulfonate 3,4-dioxygenase system, SadB, a glutamine synthase, was hypothesized to catalyze the removal of amine group from the hydroxylated 4-aminobenzenesulfonate to form 4-sulfocatechol based on targeted gene deletion and random transposon mutagenesis studies [ 25].
Based on fungal gene deletion mutant bioassays, the benzaldehydes studied target the fungal cellular antioxidation system, including MAPK signaling or the antioxidation enzymes, Cu,Zn-SOD, Mn-SOD, or glutathione reductase.
