. 2013 Feb 5;4(1):e00033-13. doi: 10.1128/mBio.00033-13

TABLE 1.

IlvE activity is decreased in a ridA strain by serine/threonine dehydratases^a

Relevant genotype	IlvE sp act (nmol 2KMV ⋅ min⁻¹ mg⁻¹ protein) in indicated medium
Relevant genotype	Minimal	Minimal + isoleucine
ridA⁺ pSU18 (empty)	73 ± 9	52 ± 2
ridA pSU18 (empty)	18 ± 5	51 ± 11
ridA⁺ pSU18-tdcB⁺	72 ± 8	77 ± 6
ridA pSU18-tdcB⁺	2 ± 4	6 ± 3

^{^a}

Cells were grown in the indicated media, and IlvE activity was measured in permeabilized cells as described in Materials and Methods. IlvE specific activity is expressed in nmol 2KMV ⋅ min⁻¹ mg⁻¹ protein; shown are averages and standard deviations of results from three biological replicates.