Size Markers Products & Reviews

Prestained markers are brighter for visual robustness throughout western blotting to accurately estimate MW, monitor electrophoresis and transfer efficiency.

250 µl, pre-stained, Strep-tagged recombinant proteins (10–250 kD), including three pink reference bands (25, 50, 75 kD), 50 applications

Human Genomic DNA

Thermo Scientific has a comprehensive range of DNA molecular weight markers which can be sub-divided into three groups: 1. Superladders derived from cloned and purified DNA fragment repeats, for quantitation and accurate sizing 2. High molecular weight markers from lambda DNA restriction digests 3. Lower molecular weight markers from plasmid and ØX174 restriction digests Most of these markers are now also available in a conven…

The Thermo Scientific 1kb DNA Ladder is and easy reference ladder with brighter bands at 1kb and 3kb.

A number of proprietary plasmids are digested to completion with appropriate restriction enzymes to yield 10 bands suitable for use as molecular weight standards for agarose gel electrophoresis. The digested DNA includes fragments ranging from 0.5-10.0 kilobases (kb). The 3.0 kb fragment has increased intensity to serve as a reference band. The approximate mass of DNA in each of the bands is provided (assuming a 0.5 μg load) f…

1 ml, unstained mixture of 10 Strep-tagged recombinant proteins (10–250 kD), including three reference bands (25, 50, 75 kD), 100 applications

500 µl, 17,500–76,000 MW range, pI 4.5–8.5, unstained mixture of myoglobin, trypsin inhibitor, CA, GAPDH, actin, BSA, and conalbumin

500 µl, mixture of 10 blue-stained recombinant proteins (10–250 kD), including three reference bands (25, 50, 75 kD), 50 applications

500 µl, mixture of 10 multicolor recombinant proteins (10–250 kD), 50 applications

500 µl, mixture of 12 recombinant proteins (2–250 kD) 9 blue-stained bands and 3 pink reference bands (2, 25 and 75 kD), 50 applications

250 µl, pI range: 4.45–9.6, phycocyanin, ß-lactoglobulin B, bovine and human CA, equine myoglobin, human hemoglobin A and C, lentil lectin, and cyt C

250 µl Precision Plus Protein WesternC standards and 125 µl StrepTactin-HRP conjugate, 50 applications

200 µl, 0.2 µg/µl, DNA standard, 100–3,000 bp, 30 bands in 100 bp increments, 100 applications

500 µl, 0.1 µg/µl, ready-to-load DNA standard, 20–1,000 bp, 50 bands, includes 1 ml 5x nucleic acid sample buffer, 100 applications

500 µl, 0.05 µg/µl, ready-to-load DNA standard, 100–1,000 bp, 10 bands, includes 1 ml 5x nucleic acid sample buffer, 100 applications

500 µl, 0.08 µg/µl, ready-to-load DNA standard, 100–3,000 bp, 30 bands, includes 1 ml 5x nucleic acid sample buffer, 100 applications

500 µl, 0.08 µg/µl, ready-to-load DNA standard, 500–8,000 bp, 16 bands, includes 1 ml 5x nucleic acid sample buffer, 100 applications

500 µl, 0.08 µg/µl, ready-to-load DNA standard, 1–15 kb, 15 bands, includes 1 ml 5x nucleic acid sample buffer, 100 applications

5 agarose blocks, PFGE marker, 0.225–2.2 Mb S. cerevisiae chromosomal DNA, for 25–40 plugs

200 µl, 10 µg/µl, PFGE standard, 5 kb ladder, 4.9–120 kb, concatemers of pBR328, 20–25 applications

5 agarose blocks, PFGE standard, lambda (?) ladder, 0.05–1 Mb, concatemers of phage ?cl857Sam7, for 25–40 plugs

5 agarose blocks, PFGE marker, 1–3.1 Mb, H. wingei chromosomal DNA, for 2540 plugs

125 µl, 0.2 µg/µl, PFGE standard, 8.3–48.5 kb, mixed digests of phage lambda (?), 125 applications

200 µl, 0.2 µg/µl, DNA standard, 1–15 kb, 15 bands in 1 kb increments, 100 applications