Spectra™ Multicolor Broad Range Protein Ladder

Catalog number: 26623

Thermo Scientific™  Related applications: Protein Gel Electrophoresis

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Thermo Scientific Spectra Multicolor Broad Range Protein Ladder is a 4-color protein standard containing 10 prestained proteins (10 to 260kDa) for use in gel electrophoresis and Western blotting.

Features of Spectra Multicolor Broad Range Protein Ladder:

Size range—10 proteins spanning 10 to 260kDa
Multicolor—four different colors for unambiguous band-size assignment
Ready-to-use—supplied in a loading buffer for direct loading on gels; no need to boil
Sharp bands—color-coded bands of similar intensity for easy visualization
Quality tested—each lot evaluated by SDS-PAGE and Western blotting
Membrane-compatible—colored bands transfer to membranes for Western blotting

• Dye-stained proteins in 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.

• 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

This prestained protein MW marker is designed for monitoring the progress of SDS-polyacrylamide gel electrophoresis, for assessing transfer efficiency onto PVDF, nylon and nitrocellulose membranes, and for estimating the approximate size of separated proteins that have been made visible with gel stains or Western blot detection reagents. Four different chromophores (blue, orange, green, pink) are bound to the different component proteins, producing a brightly colored ladder with an easy-to-remember pattern.
For Research Use Only. Not for use in diagnostic procedures.


Stain Type: Prestained
System: SDS-PAGE
Product Size: 10 x 250 µL

Contents & storage

Upon receipt store at -20°C. Product is shipped with an ice pack.


Manuals & protocols

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