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.
VWR® DNA Molecular Weight Marker, High-Range
Supplier: VWR Chemicals
High-Range DNA MW (molecular weight) marker offers 10 fragments ranging from 1503 to 48 502 bp. There is sufficient material for 75 to 150 assays.
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Peqlab peqGOLD, Protein Marker II (Unstained)
Supplier: VWR Chemicals
Protein Marker II for accurate molecular weight determination of proteins by SDS-PAGE.
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VWR®, DNA marker, 1 kb
Supplier: VWR Chemicals
DNA marker consists of 11 fragments ranging from 500 to 10000 bp for easy band identification.
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Peqlab peqGOLD, Protein Marker V (Pre-Stained)
Supplier: VWR Chemicals
Protein Marker V (pre-stained) for monitoring protein separation, transfer efficiency and size determination.
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VWR®, DNA ladders
Supplier: VWR Chemicals
VWR® DNA ladders are convenient dsDNA ladders supplied in a loading buffer, which are ready to use on agarose and SDS DNA gels.
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VWR® EZ-Vision®, DNA Ladder, 1 kb
Supplier: VWR Chemicals
EZ-Vision® 1 kb DNA ladder is a pre-mixture of DNA marker, loading buffer and a proprietary fluorescent DNA visualisation dye that can be applied directly to the gel. This non toxic, non mutagenic dye eliminates the need for ethidium bromide staining. The 1 kb ladder consists of 10 double-stranded bands with molecular weights between 200 and 10 000 bp. The intensity of individual bands varies to facilitate easy identification.
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Peqlab peqGOLD, DNA Ladder Mix
Supplier: VWR Chemicals
DNA ladder for quantitative and qualitative analysis of dsDNA.
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VWR®, Protein marker III (pre-stained), peqGOLD
Supplier: VWR Chemicals
Protein Marker III for monitoring protein separation, transfer efficiency and size determination.
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Peqlab peqGOLD, Protein Marker I (Unstained)
Supplier: VWR Chemicals
peqGOLD Protein Marker I is a mixture of seven purified proteins which are re-dissolved 'ready to use' in loading buffer. The proteins resolve into sharp, tight bands in the range of 14,4 to 116,0 kDa when analysed by SDS-PAGE and stained with Coomassie Brilliant Blue R-250.
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VWR® Ready Ladder™ DNA Ladder, 50 bp
Supplier: VWR Chemicals
Ladder with 10 fragments ranging from 50 to 500 bp for easy band identification. Ready to use formula pre-mixed with loading dye.
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VWR® RiboReady™, Color RNA Ladder, 1 kb
Supplier: VWR Chemicals
RiboReady™ Color 1 kb RNA ladder allows precise sizing of RNA molecules in denaturing acrylamide gels.
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VWR®, Protein marker VI (pre-stained), peqGOLD
Supplier: VWR Chemicals
peqGOLD pre-stained Protein Marker VI is a mixture of 10 coloured proteins. These proteins are recombinantly produced in E.coli, highly purified and supplied 'ready to use' in loading buffer. The protein concentrations are optimised to yield well-defined bands directly visible in SDS polyacrylamide gels.
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Peqlab peqGOLD, DNA Ladder, 100 bp
Supplier: VWR Chemicals
DNA ladder for quantitative and qualitative analysis of dsDNA.
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Peqlab peqGOLD, DNA Ladders, 50 bp
Supplier: VWR Chemicals
DNA ladder for quantitative and qualitative analysis of dsDNA.
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Peqlab peqGOLD, Protein Marker IV (Pre-Stained)
Supplier: VWR Chemicals
peqGOLD pre-stained protein marker IV is a mixture of 10 recombinant, highly purified coloured proteins supplied 'ready to use' in loading buffer. The protein concentrations are optimised to yield well-defined bands directly visible in SDS-polyacrylamide gels.
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VWR® PCR DNA Marker
Supplier: VWR Chemicals
PCR DNA Marker™ offers 8 fragments ranging from 50 to 2000 bp. The marker contains high intensity reference bands that are ideal for quick sizing of PCR products and restriction digests. Simply mix 10 μl of PCR DNA Marker™ with required quantity of loading buffer and load into well. There is sufficient material for 100 assays.
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VWR®, DNA ladders
Supplier: VWR Chemicals
VWR® DNA ladders are supplied in a loading buffer that is ready to use on agarose and polyacrylamide DNA gels. The ladders are suitable with TBE, TAE, SB and LB electrophoresis systems.
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VWR® EZ-Vision®, DNA Ladder, 100 bp
Supplier: VWR Chemicals
EZ-Vision® 100 bp DNA ladder is a pre-stained molecular weight ladder in loading buffer that allows immediate visualisation of DNA ladder post-electrophoresis.
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Lambda DNA phage, Hind III digest
Supplier: Rockland Immunochemicals
Lambda DNA fragments prepared by the digestion of purified lambda DNA with the restriction endonuclease Hind III.
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VWR®, DNA ladder, 100 bp
Supplier: VWR Chemicals
Ladder with 13 fragments ranging from 100 to 3000 bp for easy band identification.
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Peqlab peqGOLD, DNA Ladder, 1 kb
Supplier: VWR Chemicals
DNA ladder for quantitative and qualitative analysis of dsDNA.
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VWR® RiboReady™ Color Micro RNA Ladder
Supplier: VWR Chemicals
RiboReady™ Color Micro RNA ladder allows precise sizing of RNA molecules in denaturing acrylamide gels. The apparent sizes of bands in the RiboReady™ Color Micro RNA ladder are 100, 75, 50, 40, 30 and 20 bases in length.
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Peqlab peqGOLD, DNA Ladder, 100 bp Plus
Supplier: VWR Chemicals
peqGOLD DNA ladder 100 bp plus is ideal for size determination in the range of 100 to 3000 base pairs. There are no unspecific bands besides the fragments described. 1000 and 500 bp bands have a higher DNA content and serve as a size reference.
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Upstate® Autorad Orientation Markers for Western Blotting
Supplier: Merck
Autorad orientation markers for use on immunoblots in detection of Chemiluminescence in Western blotting, dot/slot blotting.
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DNA marker, pBR322 DNA/BsuRI (HaeIII) marker
Supplier: Thermo Fisher Scientific
pBR322 DNA/BsuRI (HaeIII) marker is suitable for sizing and approximate quantification of small linear double-stranded DNA fragments in agarose and non denaturing polyacrylamide gels.
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Lambda DNA/HindIII Marker
Supplier: Thermo Fisher Scientific
Thermo Scientific Lambda DNA/HindIII Marker is recommended for sizing of linear double-stranded large DNA fragments in agarose gels. Lambda DNA is digested to completion with the appropriate restriction enzyme(s) and purified and dissolved in storage buffer. DNA fragments contain various sticky ends depending on the restriction enzyme used for preparation of the marker.
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DNA ladders
Supplier: Biotium
Ready to use DNA ladders are supplied in 1X loading buffer at an optimal concentration for loading GelRed™ and GelGreen™ precast gels.
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Protein ladders (pre-stained), ScanLater™
Supplier: MOLECULAR DEVICES
The ScanLater™ Western blot protein ladder is a mixture of seven biotinylated recombinant proteins at 10, 20, 40, 60, 80, 100, and 140 kD.
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DNA ladder 250 to 10000 bp, AMPIGENE®
Supplier: ENZO LIFE SCIENCES
AMPIGENE® DNA ladder contains DNA fragments ranging from 250 to 10000 bp that can be used as molecular weight standards for agarose gel electrophoresis. The bands are evenly spaced and are intensified at 1000 bp and 3000 bp to serve as easily identifiable reference bands. The approximate mass of DNA in each of the bands is provided, assuming 5 µl load, for determining the approximate mass of DNA in samples with comparable intensity and sizes.
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DNA ladder 100 to 1500 bp, AMPIGENE®
Supplier: ENZO LIFE SCIENCES
AMPIGENE® DNA ladder contains DNA fragments ranging from 100 bp to 1500 bp that can be used as molecular weight standards for agarose gel electrophoresis. The bands are evenly spaced and are intensified at 500 bp and 1500 bpto serve as easily identifiable reference bands. The approximate mass of DNA in each of the bands is provided, assuming 5 µl load, for determining the approximate mass of DNA in samples with comparable intensity and sizes.