The catalytic mechanism of an anti-idiotypic antibody, 9G4H9, displaying a beta-lactamase activity was investigated. Kinetics experiments suggest that some penicillinic derivatives behave both as substrates and inactivators. Biochemical and immunological experiments strongly indicate that ampicillin may be regarded as a suicide substrate for hydrolysis by 9G4H9. The anti-idiotypic network appears as a way to create enzyme mimics with modified catalytic activities.
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Lefevre et al. (2001) studied this question.
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