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Sigma-Aldrich

Denhardt′s solution

BioReagent, for molecular biology, lyophilized powder

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About This Item

MDL number:
UNSPSC Code:
12352202
NACRES:
NA.52

grade

for molecular biology

product line

BioReagent

form

lyophilized powder

impurities

DNases, none detected
RNases, none detected
phosphatases, none detected
proteases, none detected

suitability

suitable for nucleic acid hybridization

storage temp.

2-8°C

General description

Denhardt′s solution is a mixture of high-molecular weight polymers that act as blocking agents. It is used to reduce non-specific binding of detection reagents to the Northern and Southern Blot membranes. This powder can be used to make a 50x concentrate that can be diluted to any concentration for use in a variety of pre-hybridization and hybridization buffers.

Application

Suitable to block non-specific binding sites in western, northern and Southern blot membranes

Components

Each vial of Denhardt′s powder contains 50 mG Bovine Serum Albumin (BSA), 50 mG Ficoll, and 50 mG Polyvinylpyrrolidone (PVP).

Preparation Note

To make a 50x concentrate, dissolve entire contents of vial in 5 mL molecular biology grade water. Store at −20°C for up to two years.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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J. Sambrook et al.
Molecular Cloning: A Laboratory Manual (1989)
Flavien Pillet et al.
Nucleic acids research, 39(17), 7477-7486 (2011-06-10)
The segregation of plasmid F of Escherichia coli is highly reliable. The Sop partition locus, responsible for this stable maintenance, is composed of two genes, sopA and sopB and a centromere, sopC, consisting of 12 direct repeats of 43 bp. Each

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