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Fig. 4 | AMB Express

Fig. 4

From: Derivation of pb(II)-sensing Escherichia coli cell-based biosensors from arsenic responsive genetic systems

Fig. 4

Concentration-dependent responses of biosensors to Pb(II). The responses of biosensors using E. coli-arsR and E. coli-arsR/zntA as host cells to Pb(II) were compared upon regulatory proteins. The concentration of Pb(II) ranged from 0 to 15 µM. The responses are indicated as induction coefficient values. A ArsR WT; B ArsR W4; ArsR W6; D ArsR YJ6; and E ArsR YJ20

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