From: Probing substrate binding to Metallo-β-Lactamase L1 from Stenotrophomonas maltophilia by using site-directed mutagenesis
Sample
Zn(II) Content (moles Zn(II)/mole of enzyme)a
Wild-type
1.9 ± 0.2
S224A
1.8 ± 0.2
S224D
1.7 ± 0.3
S224K
1.0 ± 0.1
Y228A
1.8 ± 0.1
Y228F
F158A
1.5 ± 0.2
I164A
1.6 ± 0.2
N233L
N233D
1.5 ± 0.1