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Protein Ladders


Ladder bands in kDa (Tris-Glycine, 4-20% gradient gel), colored bands indicated
Cozy™ Prestained Protein Ladder —-11-17——25-35-48-63-75-100-135–180
CozyHi™ Prestained Protein Ladder -5–11-17–20–25-35-48-63-75-100-135–180—245
CozyXL™ Prestained Protein Ladder —-11-17——25-35-48-63-75-100-135–180—245–310


  • Approximate protein molecular weight determination on denaturing gels
  • Monitoring of electrophoresis process and Western transfer efficiency


  • Room-temperature-stable ladders, always ready to use
  • Sharp bands, bright colors


highQu ready to use Prestained Protein Ladders are mixtures of highly recombinant proteins with coupled chromofores providing sharp protein bands and bright colors on denaturing polyacrylamide gels. The high ladder purity allows for exceptional stability and room shorm term temperature storage. Ladders are ready to be directly loaded on gels without any preparation or heating.  They provide sharp bands for approximate protein sizing and allow for monitoring of electrophoresis process and Western transfer efficiency.

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