TABLE 1.

XylE activity from WT and ΔupxY mutants containing transcriptional fusion reporter clones

PS and clone no.XylE activity (mU/mg ± SD)
Wild typeΔupxYa
PSA
    Clone 140.4 ± 10.539.8 ± 6.5
    Clone 211.9 ± 0.97.1 ± 2.2
    Clone 30.3 ± 0.30.4 ± 0.4
    Clone 41.3 ± 0.31.9 ± 0.4
    Clone 52.2 ± 0.10.4 ± 0.0
    Clone 614.2 ± 2.71.4 ± 0.6
    Clone 731.5 ± 9.21.7 ± 0.2
PSE
    Clone 849.3 ± 27.769.5 ± 16.8
    Clone 945.8 ± 13.842.1 ± 18.8
    Clone 1059.6 ± 13.750.1 ± 15.4
    Clone 115.9 ± 4.00
  • a For PSA, the ΔupxY results are for ΔupaY, and for PSE they represent ΔupeY activity.