Spectra Multicolor and PageRuler Protein Ladders are mixtures of recombinant proteins in various size ranges for use as size standards in protein electrophoresis (SDS-PAGE) and Western blotting. Spectra Multicolor Protein Ladders have 4 colors of protein bands, while the PageRuler Ladders are available in multi-color, single color and unstained versions.

Spectra and PageRuler Protein Molecular Weight Ladders

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Mixtures of recombinant proteins in various size ranges for use as size standards in protein electrophoresis (SDS-PAGE) and Western blotting. .

The Thermo Scientific Spectra Multicolor and PageRuler Protein Ladders are mixtures of recombinant proteins in various size ranges for use as size standards in protein electrophoresis (SDS-PAGE) and Western blotting. Spectra Multicolor Protein Ladders have 4 colors of protein bands, while the PageRuler Ladders are available in multi-color, single color and unstained versions.


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Spectra Multicolor Broad Range Protein Ladder

Spectra Multicolor Broad Range Protein Ladder

Spectra Multicolor High Range Protein Ladder

Spectra Multicolor High Range Protein Ladder

Spectra Multicolor Low Range Protein Ladder

Spectra Multicolor Low Range Protein Ladder

PageRuler Plus Prestained Protein Ladder

PageRuler Plus Prestained Protein Ladder

PageRuler Prestained Protein Ladder

PageRuler Prestained Protein Ladder

PageRuler Unstained Broad Range Protein Ladder

PageRuler Unstained Broad Range Protein Ladder

PageRuler Unstained Low Range Protein Ladder

PageRuler Unstained Low Range Protein Ladder

PageRuler Unstained Protein Ladder

PageRuler Unstained Protein Ladder