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.

1 – 15 of 233 results

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

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Specifications

Form	Liquid
Product Type	Protein Molecular Weight Marker/Ladder
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

Thermo Scientific™ PageRuler™ Prestained Protein Ladder, 10 to 180 kDa

Thermo Scientific PageRuler Prestained Protein Ladder is a mixture of 10 blue-, orange-, and green-stained proteins (10 to 180 kDa) for use as size standards in protein electrophoresis (SDS-PAGE) and western blotting.

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Specifications

Shipping Condition	Approved for shipment on Wet or Dry Ice
Number of Markers	10
Product Type	Protein Ladder
Molecular Weight (g/mol)	180, 130, 100, 70, 55, 40, 35, 25, 15, 10 kDa
Ready to Load	Yes
Stain Type	3 colors: Blue, Orange, Green
Size Range	10 to 180 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)

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.

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Pricing & Availability
Specifications

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	3 colors: 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)

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.

Pricing & Availability
Specifications

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™

Invitrogen™ NativeMark™ Unstained Protein Standard

Ready-to-use protein standard designed for molecular weight estimation of proteins using native gel electrophoresis

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Invitrogen™ HiMark™ Pre-stained Protein Standard

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

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Invitrogen™ SeeBlue™ Plus2 Pre-stained Protein Standard

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

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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

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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).

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Pricing & Availability
Specifications

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™

Invitrogen™ Mark12™ Unstained Standard

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

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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.

Pricing & Availability
Specifications

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	4 colors: 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)

Invitrogen™ MagicMark™ XP Western Protein Standard

Specifically designed for easy and convenient protein molecular weight estimation directly on Western blots

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Pricing & Availability
Specifications

Shipping Condition	Dry Ice
Number of Markers	9
Molecular Weight (g/mol)	220, 120, 100, 80, 60, 50, 40, 30, 20 kDa
Ready to Load	Yes
Stain Type	Unstained
System Type	Western Blotting, SDS-PAGE
Size Range	20 to 220 kDa
Product Line	MagicMark™
Detection Method	User defined detection system

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.

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Invitrogen™ HiMark™ Unstained Protein Standard

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

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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

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Protein Molecular Weight Markers

Protein Molecular Weight Markers

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