Molecular Weight Markers
Thermo Scientific™ PageRuler™ Plus Prestained Protein Ladder, 10 to 250 kDa
Mixture of 9 blue-, orange- and green-stained proteins (10 to 250kDa) used as size standards in protein electrophoresis (SDS-PAGE) and Western blotting.
Thermo Scientific™ PageRuler™ Prestained Protein Ladder, 10 to 180 kDa
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™ SeeBlue™ Plus2 Pre-stained Protein Standard
Allows you to easily visualize protein molecular weight ranges during electrophoresis and quickly evaluate Western transfer efficiency
Thermo Scientific™ Spectra™ Multicolor Broad Range Protein Ladder
A 4-color protein standard containing 10 prestained proteins (10 to 260kDa) for use as size standards in gel electrophoresis and Western blotting.
Invitrogen™ HiMark™ Pre-stained Protein Standard
Designed for analysis of high molecular weight proteins on NuPAGE™ Novex™ Tris-Acetate gels
Invitrogen™ Novex™ Sharp Pre-stained Protein Standard
Designed for accurate, easy, and convenient molecular weight estimation of a wide range of molecular weight proteins during SDS-PAGE and Western blotting
GE Healthcare Rainbow™ Molecular Weight Markers
Monitor progress of protein electrophoresis and assess transfer efficiency and molecular weight of blotted proteins without staining. GE Healthcare Life Sciences™ Rainbow™ Molecular Weight Markers use bright, distinctive colors to allow easier confirmation of transfer to blotting membranes and orientation.
Invitrogen™ Mark12™ Unstained Standard
Allows the closest estimation of molecular weight of your sample protein over a wide molecular weight range
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™ 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).
Invitrogen™ SeeBlue™ Pre-stained Protein Standard
Allows you to easily monitor the progress of your gel run and is an excellent tool for judging Western transfer efficiency
Invitrogen™ NativeMark™ Unstained Protein Standard
Ready-to-use protein standard designed for molecular weight estimation of proteins using native gel electrophoresis
Fisher BioReagents™ EZ-Run™ Prestained Rec Protein Ladder, Fisher BioReagents
Comprised of 10 recombinant proteins covalently coupled to a blue chromophore plus 10 and 72kDa reference bands tagged with green and orange dyes, respectively
Fisher BioReagents™ EZ-Run™ Prestained Protein Marker
Ideal for monitoring protein separation during electrophoresis without staining and for verifying electroblotting of proteins onto membranes
Invitrogen™ BenchMark™ Protein Ladder
Molecular weight standard for SDS-PAGE
Invitrogen™ Novex™ Sharp Unstained Protein Standard
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™ Unstained Low Range Protein Ladder
A mixture of seven purified proteins and peptides (3.4 to 100kDa) for use as size standards in peptide and small protein gel electrophoresis.
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.
Invitrogen™ MagicMark™ XP Western Protein Standard
Specifically designed for easy and convenient protein molecular weight estimation directly on Western blots
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).
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™ 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.
GE Healthcare pI Markers
Run these markers in parallel with the experimental samples on isoelectric focusing gels. GE Healthcare Life Sciences™ pI Markers are lyophilized mixtures of stable, salt-free, highly purified proteins.
Invitrogen™ IEF Marker 3-10
Ready-to-use protein marker especially developed for IEF applications
GE Healthcare Blue Dextran 2000 Protein Standard
Determine the void fraction in high-resolution gel filtration columns
Invitrogen™ BenchMark™ His-tagged Protein Standard
Used as a positive control and for molecular weight sizing in his-tagged fusion protein detection
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.
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.
Invitrogen™ BenchMark™ Pre-stained Protein Ladder
Standard used to monitor electrophoresis or electrophoretic transfer from gel to membrane in Western blots
Invitrogen™ BenchMark™ Fluorescent Protein Standard
Consists of fluorescent dye-conjugated proteins, ranging in size from approx. 11-155kDa