Antibiotic Selection of Transformants: Selects for bla-encoded carbenicillin resistance in Escherichia coli and other Gram-negative hosts after transformation.

Plasmid Maintenance: Maintains plasmids carrying beta-lactamase by continuous selection during strain propagation and streaking for isolation.

High-Density Colony Screening: Uses 245 mm gridded format for arraying, colony picking, and library screening on large-format plates.

CFU Enumeration: Enables accurate colony counting across serial dilutions using the gridded surface.

Replica Plating and Genetic Screens: Facilitates replica plating of arrays to assess phenotypes while retaining carbenicillin selection.

Cloning Workflows: Supports selection of recombinant clones; carbenicillin reduces satellite colonies compared to ampicillin.

Blue-White Screening: Suitable for alpha-complementation assays (with X-gal/IPTG) to identify inserts under carbenicillin selection.

Conjugation/Mating Selections: Selects transconjugants carrying bla-marked plasmids following bacterial mating.

Strain and Expression Line Maintenance: Preserves expression constructs prior to starter culture setup for protein production in Escherichia coli.

Plasmid Stability Testing: Assesses segregational stability of bla-marked plasmids under antibiotic pressure.