Yeast Auxotrophic Selection (-Trp): Selects for TRP1-marked plasmids/strains in Saccharomyces cerevisiae using a 2.0% Cerelose Anhydrous Dextrose (Glucose), 0.5% Ammonium Sulfate base.

Yeast Two-Hybrid (Y2H) Bait Selection: Primary selection of bait constructs on -Trp medium prior to interaction screening.

Maintenance of TRP1-Tagged Transformants: Stable propagation of yeast carrying TRP1 plasmids without additional supplements.

CRISPR/Cas9 and Genome Editing Workflows: Selection of edited yeast using TRP1 markers in drop-out conditions.

Synthetic Genetic Array (SGA) and Interaction Screens: Marker-based selection steps requiring -Trp dropout to track genetic constructs.

Replica Plating and Spot Assays: Genotype confirmation and fitness assays under tryptophan dropout.

Metabolic and Starvation Studies: Assess growth, tryptophan biosynthesis/uptake, and stress responses in -Trp, glucose-repressed conditions.

GAL Promoter Repression Pre-Cultures: 2.0% glucose supports robust growth while repressing GAL1/10-driven expression prior to induction.