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You searched for: Molecular Weight Markers

Molecular Weight Markers

Molecular-weight size markers are a set of standards used to identify the approximate size of a molecule run on a gel during electrophoresis, using the principle that molecular weight is inversely proportional to migration rate through a gel matrix. The molecular weight markers offered are ideal for verification of PCR products, for size analysis of digested DNA, and easy band identification of a number of different fragments. Certain models are available pre-mixed with loading dye.

Quick-Load Purple 50 bp DNA Ladder, New England Biolabs

Quick-Load Purple 50 bp DNA Ladder, New England Biolabs

Supplier: New England Biolabs (NEB)

Quick-load Purple 50 bp DNA Ladder is a pre-mixed, ready-to-load molecular weight marker containing one tracking dye.

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BenchTop pGEM DNA Markers, 250 µl, Promega

Supplier: Promega Corporation

36-2,645bp; 15 bands. Can be stored at room temperature. Contains dye marker, ready to load. Combination of three separate digests of pGEM(R)-3 Vector.

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BenchTop 100 bp DNA Ladder, 300 µl, Promega

BenchTop 100 bp DNA Ladder, 300 µl, Promega

Supplier: Promega Corporation

100-1,500bp in 100bp increments up to 1kb with an additional band at 1.5kb; 11 bands. Can be stored at room temperature. Contains dye marker, ready to load.

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ReadiUse™ 100 bp DNA Ladder

ReadiUse™ 100 bp DNA Ladder

Supplier: AAT BIOQUEST INC

ReadiUse™ 100 bp DNA ladder is a ready-to-use DNA ladder, which is pre-mixed with loading dye for direct gel loading.

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Benchtop DNA Marker

Benchtop DNA Marker

Supplier: PROMEGA SUNNYVALE INC SE

Ready to use, this DNA marker does not require preparation or refrigeration — it can be used effectively at room temperature. For additional convenience, the marker is supplied in blue/orange loading dye, so you can tract migration during electrophoresis. Load 6 μL per well. Total quantity: 300 μL.

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25 bp DNA Step Ladder, 100 µg, Promega

25 bp DNA Step Ladder, 100 µg, Promega

Supplier: Promega Corporation

Twelve DNA fragments ranging from 25bp to 300bp in 25bp increments includes a visible 1,800bp "backbone" fragment.

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ssRNA Ladder, New England Biolabs

ssRNA Ladder, New England Biolabs

Supplier: New England Biolabs (NEB)

The ssRNA Ladder is a set of 7 RNA molecules produced by in vitro transcription of a mixture of 7 linear DNA templates

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1 kb Plus DNA Ladder for Safe Stains, New England Biolabs

1 kb Plus DNA Ladder for Safe Stains, New England Biolabs

Supplier: New England Biolabs (NEB)

The 1 kb Plus DNA ladder for safe stains is a pre-mixed, ready-to-load molecular weight marker containing one tracking dye. It has been optimized for use on GelRed, GelGreen and SYBR Safe precast agarose gels.

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TriDye Ultra Low Range DNA Ladder, New England Biolabs

TriDye Ultra Low Range DNA Ladder, New England Biolabs

Supplier: New England Biolabs (NEB)

TriDye Ultra low range DNA ladder is a pre-mixed, ready-to-load molecular weight marker containing three tracking dyes which serve as visual aids to monitor the progress of migration during native agarose and polyacrylamide gel electrophoresis.

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Peacock™ Plus Prestained Protein Markers, Biotium

Peacock™ Plus Prestained Protein Markers, Biotium

Supplier: Biotium

A visible three-color protein marker for SDS-PAGE or western blotting, with 12 bands ranging from 8 to 245 kDa.

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SmartCheck DNA Ladders

SmartCheck DNA Ladders

Supplier: Ward's

SmartCheck ladders are available in three size ranges (50 bp, 100 bp and 1 kb) to cover most common applications.

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DNA Ladders, G-Biosciences

DNA Ladders, G-Biosciences

Supplier: G-Biosciences

G-Biosciences' 1.0 kb DNA ladder is a ready-to-use preparation that consists of 15 DNA fragments ranging from 100 bp to 10 kb

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PhiX174 DNA-Hae III Digest, New England Biolabs

PhiX174 DNA-Hae III Digest, New England Biolabs

Supplier: New England Biolabs (NEB)

The HaeIII digest of ΦX174 yields 11 fragments suitable for use as molecular weight standards for agarose gel electrophoresis

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Gelite™ 1 kb DNA Ladder

Gelite™ 1 kb DNA Ladder

Supplier: AAT BIOQUEST INC

The Gelite™ 1 kb DNA ladder is designed for sizing and estimating the mass of double-stranded DNA and PCR products within the 250 to 10000 bp range on agarose or polyacrylamide gels.

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DNAmark™ DNA Plus Ladders, G-Biosciences

DNAmark™ DNA Plus Ladders, G-Biosciences

Supplier: G-Biosciences

DNAmark™ 1kb Plus contains 15 DNA bands ranging from 100bp to 10Kb

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Gelite™ 50 bp DNA Ladder

Gelite™ 50 bp DNA Ladder

Supplier: AAT BIOQUEST INC

The Gelite™ 50 bp DNA Ladder is ideal for sizing and approximating the mass of double-stranded DNA within the 50 to 1500 bp range on agarose or polyacrylamide gels.

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BenchTop 1 kb DNA Ladder, 600 µl, Promega

BenchTop 1 kb DNA Ladder, 600 µl, Promega

Supplier: Promega Corporation

250-10,000bp; 13 bands. Can be stored at room temperature. Contains dye marker, ready to load.

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Low Range ssRNA Ladder, New England Biolabs

Low Range ssRNA Ladder, New England Biolabs

Supplier: New England Biolabs (NEB)

The Low Range ssRNA Ladder is a set of 6 RNA molecules produced by in vitro transcription of a mixture of 6 linear DNA templates

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microRNA Marker, New England Biolabs

microRNA Marker, New England Biolabs

Supplier: New England Biolabs (NEB)

The microRNA Marker is a set of three synthetic single-stranded RNA oligonucleotides 17, 21 and 25 residues long that have free 5´ ends (i.e., no 5´ phosphate groups)

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DNA Ladder, 1 kb Plus, New England Biolabs

DNA Ladder, 1 kb Plus, New England Biolabs

Supplier: New England Biolabs (NEB)

A number of proprietary plasmids are digested to completion with appropriate restriction enzymes to yield 19 bands suitable for use as molecular weight standards for agarose gel electrophoresis

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DNA Ladder, 50 bp, New England Biolabs

DNA Ladder, 50 bp, New England Biolabs

Supplier: New England Biolabs (NEB)

A number of proprietary plasmids are digested to completion with appropriate restriction enzymes to yield 17 bands suitable for use as molecular weight standards for agarose and polyacrylamide gel electrophoresis

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DNA Marker, High Range, 1000 bp, Thermo Scientific

Supplier: Thermo Scientific Chemicals

DNA ladders are used in gel electrophoresis to determine the size and quantity of testing DNA fragments of genomic, plasmid, and PCR DNA.

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MidRange PFG Marker, New England Biolabs

MidRange PFG Marker, New England Biolabs

Supplier: New England Biolabs (NEB)

MidRange PFG Marker consists of concatemers of DNA isolated from the bacteriophage (cI857 ind1 Sam7) mixed with XhoI digested DNA embedded in 1% LMP agarose and supplied in a GelSyringe dispenser.

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Apoptotic DNA Ladder, G-Biosciences

Supplier: G-Biosciences

G-Biosciences' Apoptotic DNA Ladder kit contains all of the reagents necessary for the preparation of cellular fractions for the production of apoptosis nucleosomal DNA ladders

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ProLite™ 5 to 245 kD Protein Ladder

ProLite™ 5 to 245 kD Protein Ladder

Supplier: AAT BIOQUEST INC

The ProLite™ 5 to 245 kD protein ladder is a high-quality three-colour protein standard consisting of 13 prestained proteins.

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Gelite™ 100 bp to 1 kb DNA Ladder

Gelite™ 100 bp to 1 kb DNA Ladder

Supplier: AAT BIOQUEST INC

The Gelite™ 100 bp to 1 kb DNA ladder is designed to help size and estimate the mass of double-stranded DNA and PCR products within the 100 to 10000 base pair range on agarose or polyacrylamide gels.

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Peacock™ Prestained Protein Markers, Biotium

Peacock™ Prestained Protein Markers, Biotium

Supplier: Biotium

A visible three-color protein marker for SDS-PAGE or western blotting, with 10 bands ranging from 10 to 180 kDa.

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ReadiUse™ 1 Kb Plus DNA Ladder

ReadiUse™ 1 Kb Plus DNA Ladder

Supplier: AAT BIOQUEST INC

ReadiUse™ 1 kb Plus DNA ladder is a ready-to-use DNA ladder, which is pre-mixed with loading dye for direct gel loading.

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DNA Step Ladder 50 bp, 90 µg, Promega

DNA Step Ladder 50 bp, 90 µg, Promega

Supplier: Promega Corporation

Sixteen DNA fragments ranging from 50bp to 800bp in 50bp increments plus an 1,800bp "backbone" fragment.

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1 kb DNA Ladder, IBI Scientific

1 kb DNA Ladder, IBI Scientific

Supplier: IBI Scientific

The IBI 1 kb DNA Ladder, containing 13 linear double-stranded DNA fragments is suitable for sizing double-stranded DNA from 250 to 10000 bp.

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