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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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16 – 30 of 1,551 results
16
Promotions Available

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.

ENCOMPASS_PREFERRED
17
Promotions Available

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

ENCOMPASS_PREFERRED
18
Promotions Available

Thermo Scientific™ PageRuler™ Unstained Protein Ladder

Unstained mixture of 14 recombinant, highly purified proteins (10kDa to 200kDa) for use as size standards in protein electrophoresis (SDS-PAGE) and western blotting.

EDGE ENCOMPASS_PREFERRED
Number of Markers 14
Product Type Protein Ladder
Molecular Weight (g/mol) 200, 150, 120, 100, 85, 70, 60, 50, 40, 30, 25, 20, 15, 10 kDa
Ready to Load Yes
Stain Type Unstained
Size Range 10 to 200 kDa
Product Line PageRuler
19
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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.

EDGE ENCOMPASS_PREFERRED
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)
21
Promotions Available

Invitrogen™ BenchMark™ Fluorescent Protein Standard

Consists of fluorescent dye-conjugated proteins, ranging in size from approx. 11-155kDa

EDGE ENCOMPASS_PREFERRED
24
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Cytiva Rainbow™ Molecular Weight Markers
GSA_VA

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
25

MP Biomedicals™ Pre-stained Molecular Weight Standard, Dual Color, 0.5 mL

Pre-stained Molecular Weight Standard, Dual Color is a ready-to-use three-color protein standard with 11 pre-stained proteins covering a wide range of molecular weights from 10 to 250 kDa.

28
Promotions Available

Invitrogen™ NuPAGE™ Large Protein Blotting Kit

Specifically designed for large protein analysis on NuPAGE Novex Tris-Acetate Gels under denaturing conditions

ENCOMPASS_PREFERRED
29

Lonza™ ProSieve™ Color Protein Markers

Visible markers for use in SDS-PAGE gels

For Use With (Application) Monitoring protein separation prior to staining and provide confirmation of protein transfer in Western blotting
30
Promotions Available

Thermo Scientific™ Pierce™ Prestained Protein MW Marker

Thermo Scientific Prestained Protein Molecular Weight Marker is a mixture of six blue-stained natural proteins (20 to 120 kDa) for use as size standards in protein electrophoresis (SDS-PAGE).

EDGE
Content And Storage Storage Buffer: 62.5 mM Tris · H3PO4 (pH 7.5 at 25°C), 1 mM EDTA, 2% (w/v) SDS, 1 mM DTT, 1.5 mM NaN3 and 33% (v/v) glycerol.

Upon receipt store at -20°C. Product is shipped with an ice pack.
Number of Markers 6
Product Type Protein Molecular Weight (MW) Marker
Molecular Weight (g/mol) 120, 85, 50, 35, 25, 20 kDa
Ready to Load Yes
Color Blue
Size Range 20 to 120 kDa
Product Line Pierce
Detection Method Colorimetric