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Protein Molecular Weight Markers

Individual or ladder series of specific mass (kilodalton, kDa) markers for use as approximate sizing standards in protein gel electrophoresis (especially SDS-PAGE); available preformulated in loading buffer, prestained, and unstained.
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1 – 15 of 49 results
1

Invitrogen™ PeppermintStick™ Phosphoprotein Molecular Weight Standards  DFS Item

PeppermintStick Phosphoprotein Molecular Weight Standards are a mixture of phosphorylated and nonphosphorylated proteins ranging from 14.4 to 116 kDa.

Stain Type Fluorescent
2

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

Designed for use with pre-cast E-PAGE™ Electrophoresis System

4

Invitrogen™ BenchMark™ His-tagged Protein Standard  DFS Item

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

5

MP Biomedicals™ Fluorescent Protein Marker

Obtain accurate molecular weight protein standards. Skip gel staining steps and estimate protein molecular weight using UV.

6
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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

Product Type Protein Molecular Weight Marker
Form Liquid
Formulation Supplied in gel-loading buffer
Color Blue
Storage Requirements −20°C
Range 10-170 kDa
For Use With (Application) Monitoring protein separation during SDS-PAGE
7

Invitrogen™ iBright Prestained Protein Ladder  DFS Item

For visualization and protein sizing during Electrophoresis and confirmation of Western blot detection.

8

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.

Number of Markers 8
Product Type Protein Ladder
Molecular Weight (g/mol) 150, 100, 80, 60, 50, 40, 30, 20 kDa
Ready to Load Yes
Stain Type Unstained
Size Range 20 to 150 kDa
Product Line SuperSignal
Detection Method User defined detection system
9

Thermo Scientific™ Spectra™ Multicolor Broad Range Protein Ladder

Thermo Scientific™ Spectra Multicolor Broad Range Protein Ladder is a 4-color protein standard containing 10 prestained proteins (10 to 260 kDa) for use as size standards in gel electrophoresis and Western blotting.

Shipping Condition Approved for shipment on Wet or Dry Ice
Number of Markers 10
Product Type Protein Ladder
Molecular Weight (g/mol) 260, 140, 100, 70, 50, 40, 35, 25, 15, 10 kDa
Ready to Load Yes
Stain Type Blue, Orange, Green, Pink
Size Range 10 to 260 kDa
Gel Compatibility Bolt™ Bis-Tris Plus Gels, Novex™ Tricine Gels, Novex™ Tris-Glycine Gels, NuPAGE™ Bis-Tris Gels, NuPAGE™ Tris-Acetate Gels, SDS-PAGE Gels
Product Line Spectra
Detection Method Colorimetric, NIR Fluorescence (700 nm), RGB Fluorescence (555 nm)
10

MilliporeSigma™ Novagen™ Perfect Protein™ HRP Western Blot Kit

Detect markers by adding S-protein or His·Tag™ Monoclonal Antibody.

11

Invitrogen™ Novex™ Sharp Pre-stained Protein Standard  DFS Item

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

12

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.

Number of Markers 8
Product Type Protein Ladder
Molecular Weight (g/mol) 300, 250, 180, 130, 100, 70, 50, 40 kDa
Ready to Load Yes
Stain Type Blue, Orange, Green
Size Range 40 to 300 kDa
Product Line Spectra
Detection Method Colorimetric, NIR Fluorescence (700 nm), RGB Fluorescence (555 nm)
13

MilliporeSigma™ Novagen™ Perfect Protein™ Markers, 10-225 kd

Designed for routine use in SDS-polyacrylamide gel electrophoresis, the Perfect Protein Markers enable highly accurate size determination of unknown samples.

14

Invitrogen™ Mark12™ Unstained Standard  DFS Item

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

15

Invitrogen™ HiMark™ Unstained Protein Standard  DFS Item

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