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D7290

Sigma-Aldrich

Deoxyribonucleic acid from herring sperm

single-stranded for hybridization

Synonym(e):

DNA

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1 ML
CHF 67.50
5 X 1 ML
CHF 225.00

CHF 67.50


Voraussichtliches Versanddatum02. April 2025



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1 ML
CHF 67.50
5 X 1 ML
CHF 225.00

About This Item

CAS-Nummer:
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
41106310
eCl@ss:
32160414
NACRES:
NA.52

CHF 67.50


Voraussichtliches Versanddatum02. April 2025


Biologische Quelle

(herring sperm)

Qualitätsniveau

Qualität

for molecular biology

Form

solution

Versandbedingung

dry ice

Lagertemp.

−20°C

Allgemeine Beschreibung

Suitable for use as a blocking agent in Southern hybridizations.

Anwendung

Deoxyribonucleic acid from herring sperm is suitable for use as a blocking agent in Southern hybridizations. It was used in preparation of brain sections of mice for BrdU immunohistochemistry.[1] It was also used for hybridization reaction of dot blot membranes.[2]
In order to decrease any non-specific hybridization of the probe to a substrate, blocking agents must be used. Generally, a combination of blocking reagent, detergent, and denatured, fragmented DNA is used to accomplish this. Sigma offers sonicated, denatured DNA from a variety of species for use as a blocking agent in Northern and Southern blotting and other nucleic acid hybridization techniques.
Many factors contribute to the signal-to-noise ratio in nucleic acid hybridizations. These factors include the presence of solvent (formamide), hybridization temperature, length of hybridization, volume of hybridization solution, degree and method of agitation, use of blocking reagents, concentration and specific activity of the probe, use of molecular agents to increase the rate of nucleic acid reassociation, and the degree of stringency used during the washing of the membrane.

In order to decrease any non-specific hybridization of the probe to a substrate, blocking agents must be used. Generally, a combination of blocking reagent, detergent, and denatured, fragmented DNA is used to accomplish this. Sigma offers sonicated, denatured DNA from a variety of species for use as a blocking agent in Northern and Southern blotting and other nucleic acid hybridization techniques.

Angaben zur Herstellung

This DNA is phenol-chloroform extracted, ethanol precipitated, and sonicated to produce single-stranded fragments which comigrate with the 587 and 831 base pair marker fragments.

Sonstige Hinweise

DNA in solution will reanneal on standing at room temperature so it is recommended to boil the solution for 10 minutes and then cool on ice for at least 5 minutes prior to use.

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Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)


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Marloes Prins et al.
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Alexandra Plácido et al.
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The cultivation of genetically modified organisms (GMO) continues to expand worldwide. Still, many consumers express concerns about the use of GMO in food or feed, and many countries have legislated on labelling systems to indicate the presence of GMO in
Minna M Poranen et al.
Journal of virology, 80(16), 8081-8088 (2006-07-29)
Virus-induced changes in cellular gene expression and host physiology have been studied extensively. Still, there are only a few analyses covering the entire viral replication cycle and whole-host gene pool expression at the resolution of a single gene. Here we
Simon A Joosse et al.
BMC cancer, 7, 43-43 (2007-03-09)
Array Comparative Genomic Hybridization (aCGH) is a rapidly evolving technology that still lacks complete standardization. Yet, it is of great importance to obtain robust and reproducible data to enable meaningful multiple hybridization comparisons. Special difficulties arise when aCGH is performed
Hanbin Ma et al.
Scientific reports, 3, 2730-2730 (2013-09-26)
Herein, we describe a novel integrated biosensor for performing dielectric spectroscopy to analyze biological samples. We analyzed biomolecule samples with different concentrations and demonstrated that the solution's impedance is highly correlated with the concentration, indicating that it may be possible

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