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. 2022 Apr 19;9:826505. doi: 10.3389/fmolb.2022.826505

TABLE 1.

Transition rates derived from dwell time fits at various Mg2+ concentrations.

Transition 0 mM 0.5 mM 1 mM 3 mM 5 mM
kU,K [s−1] 5.6 ± 0.14 (n = 313) 5.8 ± 0.16 (n = 626) 3.2 ± 0.04 (n = 637) 4.6 ± 0.08 (n = 541) 4.0 ± 0.07 (n = 366)
kK,U [s−1] 1.1 ± 0.03 (n = 291) 1.0 ± 0.03 (n = 575) 1.6 ± 0.03 (n = 511) 1.5 ± 0.03 (n = 439) 2.2 ± 0.11 (n = 336)
kU,M [s−1] n.d. (n = 21) 0.8 ± 0.04 (n = 423) 1.6 ± 0.04 (n = 339) 2.0 ± 0.07 (n = 221) 3.6 ± 0.10 (n = 110)
kM,U [s−1] n.d. (n = 43) 0.8 ± 0.04 (n = 476) 0.6 ± 0.03 (n = 466) 0.8 ± 0.05 (n = 324) 0.8 ± 0.10 (n = 140)
kK,M [s−1] 0.7 ± 0.05 (n = 73) 0.6 ± 0.03 (n = 168) 0.9 ± 0.05 (n = 367) 1.4 ± 0.05 (n = 315) 2.2 ± 0.07 (n = 272)
kM,K [s−1] n.d. (n = 51) 1.2 ± 0.03 (n = 115) 0.7 ± 0.04 (n = 240) 0.4 ± 0.03 (n = 212) 0.6 ± 0.04 (n = 243)

In cases where a reliable fit could not be obtained, i.e., due to an insufficient number of transitions (n), the rates were not determined (n.d.).