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See detailInteraction between Class B Beta-Lactamases and Suicide Substrates of Active-Site Serine Beta-Lactamases
Prosperi-Meys, C.; Llabres, Gabriel ULg; De Seny, Dominique ULg et al

in FEBS Letters (1999), 443(2), 109-11

The most widely used inactivators of active-site serine beta-lactamases behave as substrates of four class B metallo-beta-lactamases, but the efficiency of the catalytic process can vary by several orders ... [more ▼]

The most widely used inactivators of active-site serine beta-lactamases behave as substrates of four class B metallo-beta-lactamases, but the efficiency of the catalytic process can vary by several orders of magnitude. A comparison of the kinetic parameters for the alpha and beta isomers of 6-iodopenicillanic acid shows that there is no general preference for the alpha isomer and that the efficient hydrolysis of imipenem by these enzymes must rest on other factors. [less ▲]

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