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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 18 results
1

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

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

3

Invitrogen™ Novex™ Sharp Unstained 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

4

Invitrogen™ BenchMark™ Pre-stained Protein Ladder  DFS Item

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

5
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Cytiva Rainbow™ Molecular Weight Markers

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.

Description Rainbow molecular weight markers enhanced to enable faster and simpler identification of proteins on SDS-polyacrylamide gels.
Product Type Protein Molecular Weight Marker
Form Liquid
Color Multi
Sufficient For 50 Minigels or 25 large gels
Quantity 250 μL
Storage Requirements -15 to -30°C
Shelf Life 24 Months
6

Invitrogen™ BenchMark™ His-tagged Protein Standard  DFS Item

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

8

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

9

Invitrogen™ SeeBlue™ Plus2 Pre-stained Protein Standard  DFS Item

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

10

Thermo Scientific™ PageRuler™ Unstained Low Range Protein Ladder

Thermo Scientific PageRuler Unstained Low Range Protein Ladder is a mixture of eight purified proteins and peptides (3.4 to 100 kDa) for use as size standards in peptide and small-protein gel electrophoresis.

Number of Markers 8
Product Type Protein Ladder
Molecular Weight (g/mol) 100, 30, 25, 20, 15, 10, 5, 3.4 kDa
Ready to Load Yes
Stain Type Unstained
System Type SDS-PAGE
Size Range 3.4 to 100 kDa
Product Line PageRuler
11

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.

Number of Markers 10
Product Type Protein Ladder
Molecular Weight (g/mol) 250, 130, 95, 70, 55, 43, 34, 26, 15, 11 kDa
Ready to Load Yes
Color Blue
Size Range 11 to 250 kDa
Product Line PageRuler
Detection Method Colorimetric, NIR Fluorescence (700 nm)
12

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.

Number of Markers 11
Product Type Protein Ladder
Molecular Weight (g/mol) 250, 150, 100, 70, 50, 40, 30, 20, 15, 10, 5 kDa
Ready to Load Yes
Stain Type Unstained
Size Range 5 to 250 kDa
Product Line PageRuler
13

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.

14

Thermo Scientific™ PageRuler™ Plus Prestained Protein Ladder, 10 to 250 kDa

Thermo Scientific™ PageRuler Plus Prestained Protein Ladder is a mixture of nine (9) blue-, orange- and green-stained proteins (10 to 250 kDa) for use as size standards in protein electrophoresis (SDS-PAGE) and Western blotting.

Shipping Condition Approved for shipment on Wet or Dry Ice
Number of Markers 9
Product Type Protein Ladder
Molecular Weight (g/mol) 250, 130, 100, 70, 55, 35, 25, 15, 10 kDa
Ready to Load Yes
Stain Type Blue, Orange, Green
Size Range 10 to 250 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 PageRuler
Detection Method Colorimetric, NIR Fluorescence (700 nm), RGB Fluorescence (555 nm)
15

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)