Molecular Weight Markers

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

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™ 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™ 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

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™ 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

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™ 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

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

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).

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™ 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.

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™ 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™ 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

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

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

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

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

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.

Thermo Scientific™ Pierce™ Prestained Protein MW Marker

A mixture of six blue-stained natural proteins (20 to 120kDa) for use as size standards in protein electrophoresis (SDS-PAGE).

Fisher BioReagents™ EZ-Run™ Rec Protein Ladder

Mixture of 14 highly purified recombinant proteins optimized for precise sizing of proteins by SDS-PAGE and Western blotting

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