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. 2020 Jul 22;64(8):e00098-20. doi: 10.1128/AAC.00098-20

TABLE 3.

Kinetic parameters of BlaMab inhibition by relebactam (REL) and avibactam (AVI)

Compound Ki app (μM) k2/K (M−1 s−1) Koff (s−1) t1/2 (min)a Kd (nM)b kcat/kinact
REL 136 ± 14 6.0 × 102 ± 0.6 × 102 1.0 × 10−3 ± 0.1 × 10−3 11.6 ± 1.2 1.7 × 103 ± 0.2 × 103 3
AVI 0.30 ± 0.03 3.4 × 105 ± 0.4 × 105 2.0 × 10−3 ± 0.2 × 10−3 6.0 ± 0.6 6 ± 0.6 1
a

Residence time half-life (ln2/koff).

b

Kd = Koff/(k2/K).