However, the utilization of the metabolic genes is dependent on the carbon source and the substrate availability [ 24, 25].

Many basic housekeeping and cellular metabolic genes are regulated by bidirectional promoters.

The phosphorylated ArcA is then able to act as either an activator or repressor for various metabolic genes.

The individual islands differ in their repertoire of metabolic genes, but share a set of syntenic genes that confer their horizontal spread to other clones and species.

This effect is referred to as induction, because it induces, rather than represses, expression of the metabolic genes.

(Which compound seems to later have been exaptated by modern proteinous metabolic genes as coenzyme/energy currency.)

In this study, the toxic injury visible on day 4 was subsequently reversed by days 7 and 14, with decreasing impairment indicated by the levels of expression of metabolic genes.

Figure 9e,9f,9g,9h,9ishows five examples of metabolic genes that, contrary to naive expectation, are expressed at cellular blastoderm in domains suggestive of roles in embryonic patterning.

Simply put, these models correspond metabolic genes with metabolic pathways.

Database tools such as KEGG and BioCyc can be used in conjunction with each other to find all the metabolic genes in the organism of interest.