Molecular Weight Markers

Thermo Scientific™ PageRuler™ Plus Prestained Protein Ladder, 10 to 250 kDa Available on GSA/VA Contract for Federal Government customers only.

Mixture of 9 blue-, orange- and green-stained proteins (10 to 250kDa) used as size standards in protein electrophoresis (SDS-PAGE) and Western blotting.

Invitrogen™ SeeBlue™ Plus2 Pre-stained Protein Standard Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Allows you to easily visualize protein molecular weight ranges during electrophoresis and quickly evaluate Western transfer efficiency

Invitrogen™ HiMark™ Pre-stained Protein Standard Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Designed for analysis of high molecular weight proteins on NuPAGE™ Novex™ Tris-Acetate gels

Invitrogen™ Novex™ Sharp Pre-stained Protein Standard Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Designed for accurate, easy, and convenient molecular weight estimation of a wide range of molecular weight proteins during SDS-PAGE and Western blotting

Thermo Scientific™ PageRuler™ Prestained Protein Ladder, 10 to 180 kDa Available on GSA/VA Contract for Federal Government customers only.

Mixture of 10 blue-, orange- and green-stained proteins (10 to 180kDa) used as size standards in protein electrophoresis (SDS-PAGE) and Western blotting.

Invitrogen™ NativeMark™ Unstained Protein Standard Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Ready-to-use protein standard designed for molecular weight estimation of proteins using native gel electrophoresis

Invitrogen™ MagicMark™ XP Western Protein Standard Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Specifically designed for easy and convenient protein molecular weight estimation directly on Western blots

Thermo Scientific™ Spectra™ Multicolor Broad Range Protein Ladder Available on GSA/VA Contract for Federal Government customers only.

A 4-color protein standard containing 10 prestained proteins (10 to 260kDa) for use as size standards in gel electrophoresis and Western blotting.

Invitrogen™ Mark12™ Unstained Standard Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Allows the closest estimation of molecular weight of your sample protein over a wide molecular weight range

Invitrogen™ BenchMark™ Pre-stained Protein Ladder Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Standard used to monitor electrophoresis or electrophoretic transfer from gel to membrane in Western blots

Cytiva (Formerly GE Healthcare Life Sciences) Rainbow™ Molecular Weight Markers Available on GSA/VA Contract for Federal Government customers only.

Monitor progress of protein electrophoresis and assess transfer efficiency and molecular weight of blotted proteins without staining. Cytiva Life Sciences™ Rainbow™ Molecular Weight Markers use bright, distinctive colors to allow easier confirmation of transfer to blotting membranes and orientation.

Fisher BioReagents™ EZ-Run™ Prestained Rec Protein Ladder, Fisher BioReagents Available on GSA/VA Contract for Federal Government customers only.

Comprised of 10 recombinant proteins covalently coupled to a blue chromophore plus 10 and 72kDa reference bands tagged with green and orange dyes, respectively

Invitrogen™ SeeBlue™ Pre-stained Protein Standard Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Allows you to easily monitor the progress of your gel run and is an excellent tool for judging Western transfer efficiency

Thermo Scientific™ Spectra™ Multicolor Low Range Protein Ladder

A mixture of six proteins and synthetic peptides (1.7 to 40kDa) for use as size standards for peptides and small proteins in gel electrophoresis and Western blotting.

Thermo Scientific™ Spectra™ Multicolor High Range Protein Ladder

A mixture of eight blue-, green- and orange-stained proteins (40 to 300kDa) for use as size standards for high MW proteins in gel electrophoresis and Western blotting.

Invitrogen™ BenchMark™ Protein Ladder Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Molecular weight standard for SDS-PAGE

Invitrogen™ BenchMark™ Fluorescent Protein Standard Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Consists of fluorescent dye-conjugated proteins, ranging in size from approx. 11-155kDa

Invitrogen™ IEF Marker 3-10 Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Ready-to-use protein marker especially developed for IEF applications

Thermo Scientific™ PageRuler™ Unstained Protein Ladder

A mixture of seven native proteins (14.4 to 116kDa) for use as size standards in protein electrophoresis (SDS-PAGE).

Thermo Scientific™ SuperSignal™ Molecular Weight Protein Ladder

Ready-to-use mix of recombinant proteins (20 to 150K) with IgG-binding sites for chemiluminescent, fluorescent, chromogenic or other detection methods.

Invitrogen™ Novex™ Sharp Unstained Protein Standard Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Designed for accurate, easy and convenient molecular weight estimation of a wide range of molecular weight proteins during SDS-PAGE and western blotting

Invitrogen™ HiMark™ Unstained Protein Standard Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Designed for analysis of high molecular weight proteins on Novex™ NuPAGE™ Tris-Acetate Gels

Thermo Scientific™ PageRuler™ Prestained NIR Protein Ladder

A mixture of 10 proteins (11 to 250KDa) that are blue-stained and fluor-labeled for near-IR fluorescent visualization and protein sizing following electrophoresis.

Invitrogen™ BenchMark™ His-tagged Protein Standard Available on GSA/VA Contract for Federal Government customers only. Non-distribution product as customer accommodation.

Used as a positive control and for molecular weight sizing in his-tagged fusion protein detection

Thermo Scientific™ SuperSignal™ Enhanced Molecular Weight Protein Ladder

Ready-to-use mix of recombinant proteins (20 to 150K) with IgG-binding sites for chemiluminescent, fluorescent, chromogenic or other detection methods.

Cytiva (Formerly GE Healthcare Life Sciences) pI Markers

Run these markers in parallel with the experimental samples on isoelectric focusing gels. Cytiva Life Sciences™ pI Markers are lyophilized mixtures of stable, salt-free, highly purified proteins.

Lonza™ ProSieve™ Color Protein Markers

Visible markers for use in SDS-PAGE gels

Fisher BioReagents™ EZ-Run™ Protein Marker

Mixture of seven purified proteins optimized to produce uniform, compact bands when analyzed by SDS-PAGE and stained with Coomassie™ Blue

Thermo Scientific™ Pierce™ Unstained Protein MW Marker

A mixture of seven native proteins (14.4kDa to 116kDa) for use as size standards in protein electrophoresis (SDS-PAGE).

Thermo Scientific™ PageRuler™ Unstained Broad Range Protein Ladder

A mixture of 11 proteins (5 to 250kDa) for use as size standards in protein electrophoresis (SDS-PAGE) and Western blotting.

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