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beta-lactamase activity

Known as: ampicillinase activity, penicillin beta-lactamase activity, beta-lactam hydrolase activity 
Catalysis of the reaction: a beta-lactam + H2O = a substituted beta-amino acid. [EC:3.5.2.6]
National Institutes of Health

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Penicillinaseneutrapen

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2006
2006
Mutagenic effect of acridine orange on the expression of penicillin G acylase and β‐lactamase in Escherichia coli
Aims:  The present work aimed to improve the production of penicillin G acylase (PGA) and reduce the β‐lactamase activity through… 
2003
2003
Effect of column dimensions and flow rates on size-exclusion refolding of beta-lactamase.
2000
2000
Sinus Tissue Pharmacokinetics After Oral Administration of Amoxicillin/Clavulanic Acid
Objectives The in vitro synergy of the amoxicillin/clavulanic acid combination has not always translated in vivo into clinical… 
1999
1999
Secretory Production of Recombinant Protein by a High Cell Density Culture of a Protease Negative Mutant Escherichia coli Strain
Several protease negative mutant strains including HM114, HM126, and HM130 as well as their parent strain KS272 were compared for… 
Highly Cited
1992
Highly Cited
1992
High-level beta-lactamase activity in sputum samples from cystic fibrosis patients during antipseudomonal treatment
The in vivo activity and source of beta-lactamase in sputum samples from 43 patients with cystic fibrosis (CF) during a 2-week… 
1988
1988
Comparison of glycine enhancement with cefoxitin induction of class 1 beta-lactamase production in Enterobacter cloacae ATCC 13047.
The presence of either glycine or cefoxitin in the growth medium resulted in an increase in the beta-lactamase activity of… 
1985
1985
Radioimmunoassay and enzyme-linked immunoassay of antibodies to the core protein (P24) of human T-lymphotropic virus (HTLV III).
1983
1983
Intestinal beta-lactamase activity in ampicillin-induced, Clostridium difficile-associated ileocecitis.
Daily oral administration of ampicillin to hamsters consistently resulted in fatal ileocecitis due to ampicillin-susceptible… 
1972
1972
Microiodometric determination of beta-lactamase activity.
The product of beta-lactamase activity (a penicilloic acid in the case of a penicillin) is stoichiometrically oxidized by iodine… 
1971
1971
Protein and carbohydrate moieties of a preparation of -lactamase II.
1. A crystalline preparation of beta-lactamase II has been separated into two moieties by gel filtration on a column of Sephadex… 
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