Laemmli Buffer (2X) is an essential reagent in protein biochemistry, widely utilized for preparing samples for sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). Developed by U.K. Laemmli in 1970, this buffer remains the standard for denaturing proteins and ensuring accurate size-based separation. Proteogenixx’s Laemmli Buffer 2X is formulated to deliver reproducible performance and convenience, eliminating the need for in-house preparation and minimizing variability between experiments.

The buffer contains SDS for imparting a uniform negative charge to proteins, glycerol to increase sample density for proper well loading, and bromophenol blue as a tracking dye to monitor electrophoresis progress. Additionally, Tris-HCl maintains pH stability during sample denaturation and migration. When combined with reducing agents such as β-mercaptoethanol or DTT (added fresh by the user), Laemmli Buffer ensures complete disruption of disulfide bonds, yielding fully denatured protein samples suitable for reliable electrophoretic analysis.

Proteogenixx’s ready-to-dilute Laemmli Buffer (2X) provides researchers with a high-quality, stable solution that simplifies SDS-PAGE workflows. Its robust formulation ensures consistent protein resolution and is compatible with downstream applications including Western blotting, silver staining, and Coomassie staining.

Storage: Store at –20 °C for long-term stability.