Strain number
|
Amount of TSST-1 produced (μg/ml)
|
Changes in agrC region nucleotide sequence
|
Predicted outcome
|
tstpromoter
|
sarA
|
sigB
|
---|
1
|
3.5
|
NC
|
NC
|
NC
|
NC
|
2
|
14
|
T(321) insertion
|
Frameshift→Truncated AgrC
|
NC
|
NC
|
NC
|
3
|
5
|
T 281A
|
phe→ile
|
NC
|
NC
|
NC
|
7
|
2
|
NC
|
NC
|
NC
|
NC
|
8
|
4
|
Δ495~504
|
Deletion of leu-lys-ile
|
NC
|
NC
|
NC
|
9
|
2.8
|
NC
|
NC
|
NC
|
NC
|
10
|
14
|
G651T
|
glu→his
|
NC
|
NC
|
NC
|
11
|
12
|
NC
|
NC
|
NC
|
NC
|
16
|
1.3
|
NC
|
NC
|
NC
|
NC
|
- Data are from DNA sequencing of agr loci, tst promoter region, sarA and sigB from 9 strains. All mutations were found in agrC. NC, no change.