Molecule

DB00578 

C1613 

Application
Used for selection of ampr transformed cells. Use to study the role of penicillin-sensitive transpeptidases in cell wall biosynthesis.
Biochem/physiol Actions
The antibiotic carbenicillin, an ampicillin analog, is a commonly used selection agent that binds and inhibits enzymes involved in the synthesis of the bacterial cell wall. It is active against most isolates of Pseudomonas aerogenosa and certain indole-positive Proteus strains that are resistant to ampicillin. The gene conferring resistance to ampicillin and its analogs, ampr, codes for the enzyme β-lactamase. Carbenicillin is less sensitive to β-lactamase than ampicillin. In addition it has a superior stability at low pH. Experiments have shown that the use of carbenicillin in place of ampicillin helps prevent overgrowth of satellite colonies. Effective concentration: 50 to 100 μg/ml.
Protocols & Applications
Antibiotic Selector for application, solubility, solution stability, working concentration, and mode of action information

15821 

Components
(per vial, sufficient for 500 ml medium)Carbenicillin 25 mg
Application
For selective isolation and detection of Klebsiella species.
Biochem/physiol Actions
The antibiotic carbenicillin, an ampicillin analog, is a commonly used selection agent that binds and inhibits enzymes involved in the synthesis of the bacterial cell wall. It is active against most isolates of Pseudomonas aerogenosa and certain indole-positive Proteus strains that are resistant to ampicillin. The gene conferring resistance to ampicillin and its analogs, ampr, codes for the enzyme β-lactamase. Carbenicillin is less sensitive to β-lactamase than ampicillin. In addition it has a superior stability at low pH. Experiments have shown that the use of carbenicillin in place of ampicillin helps prevent overgrowth of satellite colonies. Effective concentration: 50 to 100 μg/ml.
Other Notes
Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. 15821.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.