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S7025

Sigma-Aldrich

50 bp DNA Step Ladder

for DNA electrophoresis

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Synonym(s):
DNA Ladder, Step Ladder, 50 bp, 17 Fragments, 50-3000 bp
NACRES:
NA.25

Quality Level

form

liquid

usage

100 uses

suitability

suitable for electrophoresis (DNA)

storage temp.

−20°C

General description

Sigma′s 50 bp DNA Step Ladder contains 17 blunt-ended fragments consisting of 50 bp repeats from 50 to 500 bp, 100 bp repeats from 600 to 900 bp, and 1 kb repeats from 1 to 3 kb. For NA electrophoresis, 10 μl of the marker should be diluted in gel loading buffer and then loaded in a single lane on an agarose or polyacrylamide gel. Suitable for Northern and Southern blotting.

Application

Suitable for size determination of PCR-generated DNA fragments with either agarose or polyacrylamide gels.

Components

Sigma′s 50 bp DNA Step Ladder is provided in a solution of 10 mM Tris-HCl (pH 7.5), 10 mM NaCl, and 1 mM EDTA.

Other Notes

Contains blunt-ended fragments of DNA, 50-500 bp by 50, 600-900 bp by 100, and 1000-3000 bp by 1000 (17 bands).
For optimal resolution, the recommended agarose gel concentration is 2.0%.

Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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