You searched for: 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.
Western blotting markers, Perfect Protein™, Novagen®
Supplier: Merck Millipore (Novagen)
The Perfect Protein™ Western Markers consist of seven recombinant S•Tag™/His•Tag® fusion proteins that can be detected on any Western blot using an S-protein AP or HRP conjugate. As an additional option, the markers can also be detected with an His•Tag Monoclonal Antibody and an AP or HRP conjugated secondary antibody. The Perfect Protein Western Markers serve as precise size standards that appear simultaneously on the blot with target proteins, eliminating the uncertainty and imprecision associated with other methods.
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Protein markers for gel electrophoresis
Supplier: PanReac AppliChem
The main applications for prestained protein markers are the monitoring of protein migration during SDS-PAGE, verification of Western transfer efficiency on membranes, and estimation of protein sizes on SDS-polyacrylamide gels and Western blots.
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Perfect DNA™ ladders
Supplier: Merck Millipore (Novagen)
The Perfect DNA™ ladders contain sets of DNA species having convenient, easy-to-remember sizes for agarose gel analysis. The markers have uniform band intensities and cover a wide range of DNA sizes.
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DNA ladder, 500 bp, DNAmark™
Supplier: G-Biosciences
DNAmark™ 500 bp ladder consists of 10 DNA fragments ranging from 500 bp to 5000 bp. The 2000 bp fragment is present at increased intensity to allow easy identification. All fragments are precisely quantified and mixed during the production. For 5 µl loading, all fragments except 2000 bp are 40 ng. The 2000 bp fragment is 100 ng.
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DNA ladder, 100 bp, DNAmark™
Supplier: G-Biosciences
DNAmark™ 100 bp ladder consists of 11 fragments ranging from 100 to 1500 base pairs (bp). The 500 bp fragment is present at increased intensity to allow easy identification. All fragments are precisely quantified and mixed during the production. For 5 µl loading, all fragments except 500 bp are 40 ng. The 500 bp fragment is 100 ng.
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DNA ladder
Supplier: LONZA
Thse DNA ladders provides rapid and easy size determination of the DNA samples. Each band has an ideal 50 % G-C content for precise sizing and sharp resolution. It is free from contaminating plasmid DNA with minimal background.
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PCR Molecular Size Marker
Supplier: Merck Millipore (Novagen)
PCR Molecular Size Marker contains a mixture of eight defined DNA fragments ranging from 50 to 2000 bp at convenient size intervals for characterising small DNA products. The markers are supplied in gel loading buffer containing two tracking dyes that do not interfere with UV illumination of ethidium bromide-stained bands. A separate vial of 6X Loading Buffer is included. Each vial of markers is sufficient for 50 lanes on TBE or TAE agarose stained with ethidium bromide. The recommended amount for loading (5 µl) produces bands of even intensity that are bright, sharp and easy to photograph.
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DNA ladder, 1 kb Plus, DNAmark™
Supplier: G-Biosciences
DNAmark™ 1 kb Plus ladder contains 15 DNA bands ranging from 100 bp to 10 kb. The 500 bp and 3000 bp fragment are present at increased intensity to allow easy identification. All fragments are precisely quantified and mixed during the production. For 5 µl loading, all fragments except 500 bp and 3000 bp are 40 ng. The 500 bp and 3000 bp fragment are 100 ng.
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DNA ladder, 100 bp Plus, DNAmark™
Supplier: G-Biosciences
DNAmark™ 100 bp Plus ladder consists of 14 DNA fragments ranging in size from 100 to 3000 base pairs (bp). The 500 bp and 1200 bp fragment are present at increased intensity to allow easy identification. All fragments are precisely quantified and mixed during the production. For 5 µl loading, all fragments except 500 bp and 1200 bp are 40 ng. The 500 bp and 1200 bp fragment are 100 ng.
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DNA QuantLadders
Supplier: LONZA
QuantLadders are prepared from five highly purified DNA fragments that provide visual quantitation of DNA within ±1% accuracy. The DNA QuantLadder provides each DNA fragment in perfect relative mass equivalence at 100 ng, 70 ng, 50 ng, 20 ng and 10 ng. The reverse QuantLadder simply reverses the mass equivalence order of the QuantLadder.
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DNA ladder, 100 bp
Supplier: PanReac AppliChem
This DNA ladder is ideal for determining the size of double-stranded DNA ranging from 100 to 1,000 base pairs. The ladder consists of ten fragments that range in size from 100 to 1,000 bp in 100 bp increments. The 500 bp fragment is present at increased intensity to allow easy identification. All fragments are blunt-ended.
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Molecular weight markers, Rainbow™
Supplier: Cytiva
Rainbow™ molecular weight markers enable faster and simpler identification of proteins on SDS polyacrylamide gels. These ready to load markers provide sharper, more intense bands on gels and blots, and have improved band spacing for more accurate molecular weight determination. The bright, distinctive colours of the markers allow easier confirmation of transfer to blotting membranes and orientation.
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Protein and peptide molecular weight markers
Supplier: Cytiva
For determination of molecular weight of uncharacterised protein samples with precision by comparison with carefully selected standards.
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pI markers
Supplier: Cytiva
pI markers are lyophilized mixtures of stable, salt-free, highly purified proteins.
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Molecular weight markers, Amersham™ ECL™ Plex™ fluorescent Rainbow™ markers
Supplier: Cytiva
Amersham™ ECL™ Plex™ fluorescent Rainbow™ markers are protein molecular weight markers optimised for use with the ECL™ Plex™ Western blotting detection system. They are designed to provide visible marker bands on gels and membranes, as well as fluorescent images using Cy3 and Cy5 channels.
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Protein standards
Supplier: Genscript
GenScript offers a wide selection of Protein molecular weight standards for SDS-PAGE and Western blot, including prestained, unstained, peptide, Western-viewable, and other standards.
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Western blotting markers, Amersham™ ECL™ DualVue™
Supplier: Cytiva
Amersham™ ECL™ DualVue™ Western blotting markers perform two key functions. Firstly, the prestained marker proteins confirm protein transfer in addition to clearly defining blot orientation. Secondly, the recombinant tagged proteins are detected on film or by CCD imaging in conjunction with the target protein(s) of interest, enabling highly accurate molecular mass determination of the target protein(s). The tagged markers are detected easily and specifically by means of a specific conjugate that eliminates any cross contamination between target protein(s) and markers.
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DNA Ladder 1 kb
Supplier: STEMCELL Technologies
DNA ladder consisting of 13 fragments from 250 to 10000 base pairs for determining the size of double-stranded DNA by gel electrophoresis.