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Marker di pesi molecolari

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.

Peqlab peqGOLD, DNA Ladder Mix

Peqlab peqGOLD, DNA Ladder Mix

Supplier: VWR Chemicals

DNA ladder for quantitative and qualitative analysis of dsDNA.

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VWR®, DNA marker, 1 kb

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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VWR®, DNA ladders

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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Peqlab peqGOLD, Protein Marker I (Unstained)

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®, Protein marker VI (pre-stained), peqGOLD

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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VWR® Ready Ladder™ DNA Ladder, 50 bp

VWR® Ready Ladder™ DNA Ladder, 50 bp

Supplier: VWR Chemicals

Marcatore con 10 frammenti da 50 a 500 bp per una semplice identificazione della banda. Formula pronta all'uso premiscelata con colorante di caricamento.

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Peqlab peqGOLD, Protein Marker II (Unstained)

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® RiboReady™ Color Micro RNA Ladder

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

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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Peqlab peqGOLD, Protein Marker IV (Pre-Stained)

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®, DNA ladders

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® PCR DNA Marker

VWR® PCR DNA Marker

Supplier: VWR Chemicals

PCR DNA Marker™ con 8 frammenti da 50 a 2000 bp. Il marcatore contiene bande di riferimento ad alta intensità ideali per determinare rapidamente le dimensioni dei prodotti di PCR e per digestione con enzimi di restrizione. È sufficiente miscelare 10 μl di PCR DNA Marker™ con la quantità richiesta di tampone di caricamento e caricare nel pozzetto. Materiale sufficiente per 100 saggi.

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VWR® RiboReady™, Color RNA Ladder, 1 kb

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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Peqlab peqGOLD, Protein Marker V (Pre-Stained)

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® EZ-Vision®, DNA Ladder, 1 kb

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, 1 kb

Peqlab peqGOLD, DNA Ladder, 1 kb

Supplier: VWR Chemicals

DNA ladder for quantitative and qualitative analysis of dsDNA.

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VWR®, DNA ladder, 100 bp

VWR®, DNA ladder, 100 bp

Supplier: VWR Chemicals

Ladder con 13 frammenti da 100 a 3000 bp per una semplice identificazione della banda.

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VWR® EZ-Vision®, DNA Ladder, 100 bp

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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VWR®, Protein marker III (pre-stained), peqGOLD

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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VWR® DNA Molecular Weight Marker, High-Range

VWR® DNA Molecular Weight Marker, High-Range

Supplier: VWR Chemicals

Marcatore MW (peso molecolare) per DNA, gamma alta: 10 frammenti da 1.503 a 48.502 bp. Materiale sufficiente per 75 – 150 saggi.

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DNA ladder, O'RangeRuler™

DNA ladder, O'RangeRuler™

Supplier: Thermo Fisher Scientific

O'RangeRuler™ DNA ladders are step ladders that consist of basic unit repeats of 10, 15, 20, 50, 100, 200, or 500 bp. The ladders have a higher density of bands at a specific DNA size range and are therefore suitable for more accurate sizing of DNA in agarose or non denaturing polyacrylamide gels.

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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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Lambda DNA/HindIII Marker

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 ladder 50 to 1500 bp, AMPIGENE®

Supplier: ENZO LIFE SCIENCES

AMPIGENE® DNA ladder contains DNA fragments ranging from 50 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 200 bp, 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.

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Protein ladders (pre-stained), ScanLater™

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 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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Upstate® Autorad Orientation Markers for Western Blotting

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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Lambda DNA phage, E. coli W8850

Supplier: Rockland Immunochemicals

Lambda phage consists of a virus particle including a head (also known as a capsid), a tail and tail fibres. The head contains the phage's double-stranded circular DNA genome. The phage particle recognises and binds to its host E.coli causing DNA in the head of the phage to be ejected through the tail into the cytoplasm of the bacterial cell. Lambda phage DNA is commonly used as a DNA molecular weight marker. Digestion of the lambda phage genome with HindIII produces a set of 8 fragments consisting of 125, 560, 2000, 2300, 4300, 9400, and 23000 base pairs.

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RNA ladder, high range, RiboRuler™

RNA ladder, high range, RiboRuler™

Supplier: Thermo Fisher Scientific

RiboRuler™ high range RNA ladder allows precise sizing of RNA molecules in denaturing agarose gels and Northern blotting.

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DNA ladders, ultra low range, FastRuler

DNA ladders, ultra low range, FastRuler

Supplier: Thermo Fisher Scientific

FastRuler ultra low range DNA ladder is specifically designed for fast sizing and approximate quantification of double-stranded DNA in 48 well (or 96-well) high throughput gels, as well as in conventional agarose gels. The ladder is a mixture of five blunt-ended chromatography-purified individual DNA fragments that are easily resolved in a short separation distance (10 to 20 mm) after an 8 to 14 minutes run on the appropriate agarose gel.

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