Protein Molecular Weight Markers

Protein molecular weight markers contain peptide or protein molecules of several pre-defined molecular weights for use as size standards in gel electrophoresis. Products include kits, markers, and ladders containing low-range and high-range standards, available unstained or pre-stained.
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MagicMark™ XP Western Protein Standard Invitrogen™

MagicMark XP Western Protein Standard consists of nine recombinant proteins (20–220 kDa), each of which contains an IgG binding site. The IgG binding site binds the primary or secondary antibody used for detection of the target protein, allowing direct visualization of the standard on the western...

SeeBlue™ Pre-stained Protein Standard Invitrogen™

SeeBlue Pre-Stained Standard consists of nine polypeptides that resolve into sharp, tight blue bands in the range of 4–250 kDa allowing you to easily monitor protein electrophoresis and western transfer efficiency.

E-PAGE™ SeeBlue™ Pre-stained Standard Invitrogen™

E-PAGE SeeBlue Pre-stained Standards are designed for use with the pre-cast E-PAGE Electrophoresis System. The standards consist of three blue-dyed and two colored bands ranging in size from ∼21–261 kDa for monitoring gel and transfer runs.

NuPAGE™ Large Protein Blotting Kit Invitrogen™

The HiMark™ Pre-Stained and Unstained High Molecular Weight Protein Standards are specifically designed for large protein analysis on NuPAGE® Novex Tris-Acetate Gels under denaturing conditions. Both standards offer a time-saving load-and-go format.

Novex™ Sharp Pre-stained Protein Standard Invitrogen™

Novex Sharp Pre-Stained Protein Standard is designed for accurate, easy, and convenient molecular weight estimation of a wide range of molecular weight proteins during SDS-PAGE and western blotting. The standard consists of 12 colored bands in the range of 3.

HiMark™ Unstained Protein Standard Invitrogen™

HiMark Unstained High Molecular Weight (HMW) Protein Standard contains nine proteins in the range of 40–500 kDa designed for analysis of high molecular weight proteins. The protein standard is supplied in a ready-to-use format for direct loading onto gels; no need to heat, reduce, or add sample...

NuPAGE™ Large Protein Staining Kit Invitrogen™

The HiMark™ Pre-Stained and Unstained High Molecular Weight Protein Standards are specifically designed for large protein analysis on NuPAGE® Novex Tris-Acetate Gels under denaturing conditions. Both standards offer a time-saving load-and-go format.

Pierce™ Unstained Protein MW Marker Thermo Scientific™

Thermo Scientific Unstained Protein Molecular Weight Marker is a mixture of seven native proteins (14.4 to 116 kDa) for use as size standards in protein electrophoresis (SDS-PAGE). Compare and view all other protein standards and ladders › Applications • Accurate protein sizing on SDS-polyacrylamide...

PageRuler™ Prestained NIR Protein Ladder Thermo Scientific™

Thermo Scientific PageRuler Prestained NIR Protein Ladder is a mixture of 10 proteins (11 to 250 kDa) that are blue-stained and fluor-labeled for near-IR fluorescent visualization and protein sizing following electrophoresis.

PageRuler™ Unstained High Range Protein Ladder Thermo Scientific™

Thermo Scientific PageRuler Unstained High Range Protein Ladder is a mixture of eight (8) unstained proteins (60 to 250kDa) for use as size standards in protein electrophoresis (SDS-PAGE) and Western blotting.

Spectra™ Multicolor High Range Protein Ladder Thermo Scientific™

Thermo Scientific Spectra Multicolor High Range Protein Ladder is a mixture of eight blue-, green-, and orange-stained proteins (40 to 300 kDa) for use as size standards for high-MW proteins in gel electrophoresis and western blotting.

PageRuler™ Unstained Broad Range Protein Ladder Thermo Scientific™

Thermo Scientific PageRuler Unstained Broad Range Protein Ladder is a mixture of 11 proteins (5 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,...

BenchMark™ Protein Ladder Invitrogen™

BenchMark Protein Ladder consists of 15 unstained recombinant proteins ranging in molecular weight from 10 to 220 kDa. The protein standard 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.

BenchMark™ Pre-stained Protein Ladder Invitrogen™

BenchMark Pre-Stained Protein Ladder contains 10 proteins ranging in apparent molecular weight from 6 to 180 kDa for use in monitoring electrophoresis or transfer from gel to membrane in western blotting.

IEF Marker 3-10 Invitrogen™

IEF Marker 3-10 is a ready-to-use protein marker consisting of 13 purified isoforms for the use in IEF applications. The marker works well on all horizontal and vertical one-dimensional IEF gels and can be used in both native and denaturing conditions.
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