D7290
Deoxyribonucleic acid from herring sperm
single-stranded for hybridization
Sinonimo/i:
DNA
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| A voi/SKU | Disponibilità | Prezzo |
|---|---|---|
1 mL | Per conoscere la disponibilità, visualizza il carrello | CHF 70.30 |
5 x 1 mL | Per conoscere la disponibilità, visualizza il carrello | CHF 235.00 |
Informazioni su questo articolo
Numero CAS:
UNSPSC Code:
41106310
eCl@ss:
32160414
EC Number:
309-566-6
NACRES:
NA.52
MDL number:
Biological source:
(herring sperm)
Form:
solution
Storage temp.:
−20°C
CHF 70.30
Per conoscere la disponibilità, visualizza il carrello
Servizio Tecnico
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Permettici di aiutartibiological source
(herring sperm)
Quality Segment
grade
Molecular Biology
form
solution
shipped in
dry ice
storage temp.
−20°C
General description
Suitable for use as a blocking agent in Southern hybridizations.
Application
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.
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.
Preparation Note
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.
Other Notes
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.
1 of 1
Questo articolo | |||
|---|---|---|---|
| biological source (herring sperm) | biological source human placenta | biological source (Herring sperm) | biological source fish testis (salmon) |
| grade Molecular Biology | grade Molecular Biology | grade - | grade Molecular Biology |
| form solution | form buffered aqueous solution | form powder | form solution |
| shipped in dry ice | shipped in dry ice | shipped in - | shipped in dry ice |
| storage temp. −20°C | storage temp. −20°C | storage temp. 2-8°C | storage temp. −20°C |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
Classe di stoccaggio
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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