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. 2022 Apr 29;121(11):2135–2151. doi: 10.1016/j.bpj.2022.04.031

Table 3.

Dissociation constants for DNA binding to PpsR

Protein Kd for DNA1 (μΜ) Kd for DNA2 (μΜ)
PpsR 0.9 ± 0.2 5.3 ± 2.6
PAS2-HTH 1.25 ± 0.23 16 ± 15
PpsR-heme 8.5 ± 0.7
PAS2-HTH-heme 12.2 ± 1.1
PpsR-AppA 2.0 ± 0.3
PpsR/DTT 1.0 ± 0.3 1.6 ± 0.9
PpsR/DTT-heme 1.0 ± 0.3 3.3 ± 2.8