Thermo Scientific™

PageRuler™ Plus Prestained Protein Ladder, 10 to 250 kDa

Catalog number:  26619

Related applications:

Protein Electrophoresis & Western Blotting

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Thermo Scientific PageRuler Plus Prestained Protein Ladder is a mixture of nine blue-, orange-, and green-stained proteins (10 to 250 kDa) for use as size standards in protein electrophoresis (SDS-PAGE) and western blotting. The protein ladder is supplied in a ready-to-use format for direct loading onto gels; no need to heat, reduce, or add sample buffer prior to use.

Compare and view all other protein standards and ladders ›

• Monitoring protein migration during SDS-polyacrylamide gel electrophoresis
• Monitoring protein transfer onto membranes after western blotting
• Sizing of proteins on SDS-polyacrylamide gels and western blots

For Research Use Only. Not for use in diagnostic procedures.


Molecular Weight: 250, 130, 100, 70, 55, 35, 25, 15, 10 kDa
Quantity: 2 x 250 μL
System Type: SDS-PAGE
Product Line: PageRuler™
Detection Method: colorimetric, NIR fluorescence (700nm channel), RGB fluorescence (555nm channel)
Stain Type: 3 colors: Blue, Orange, Green
Product Type Specs: Protein Ladder
Number of Markers: 9
Ready to Load: Yes
Size Range: 10 to 250 kDa

Contents & storage

Contents: two vials of 250 µL each

Storage buffer: 62.5 mM Tris-H3PO4 (pH 7.5 at 25°C), 1 mM EDTA, 2% SDS, 10 mM DTT, 1 mM NaN3 and 33% glycerol

Storage: Upon receipt store at -20°C