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D4889

Sigma-Aldrich

Deoxyribonucleic acid sodium salt from Escherichia coli strain B

Genomic, unsheared

Sinónimos:

DNA

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About This Item

Número de CAS:
Número CE:
Número MDL:
Código UNSPSC:
41106310
eCl@ss:
32160414
NACRES:
NA.52

grado

for molecular biology

Nivel de calidad

Formulario

lyophilized powder

mol peso

>45 kb

temp. de almacenamiento

2-8°C

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Descripción general

Escherichia coli strain B is most widely studied DNA after k-12. The genomes of E coli strain B and k-12 show differences in the IS sequence elements. Strain B have B-islands and express O-specific side-chain LPS. The product is unsheared genomic DNA.

Especificidad

50% GC; Tm = 90.5 °C

Aplicación

The DNAs are particularly useful for genomic analysis, including PCR, library construction in bacteriophage λ, and in heterologous pre-hybridization and hybridization protocols.
Deoxyribonucleic acid sodium salt from Escherichia coli strain B has been used for:
  • PCR reactions of genomic DNA of Gardnerella vaginalis
  • nick translation and radiolabeling of dNTP
  • generating standard curve for 16S rDNA quantification
  • transfecting neutrophils
  • testing the extraction methods

Definición de unidad

One unit will yield an A260 of 1.0 in 1.0 ml of 1 mM Tris-HCl, pH 7.5, with 1 mM NaCl and 1 mM EDTA (1 cm light path).

Nota de preparación

Purified by anion exchange chromatography, dialyzed against a solution of 1 mM sodium chloride, 1 mM EDTA and 1 mM Trizma HCl, pH 7.5 and lyophilized at a concentration of approx. 2 units per mL. Approx. 20 A260 units per mg DNA. % GC is the percentage of G/C base pairs. Tm is the temperature at the midpoint of the thermal denaturation profile.

Nota de análisis

Analyzed by gel electrophoresis and visualization after ethidium bromide staining, with single predominant band of 45 kB or greater.

Otras notas

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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Referencia del producto
Descripción
Precios

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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M Agarwal et al.
BJU international, 88(9), 868-870 (2002-02-20)
To investigate the possible role of Gardnerella vaginalis in interstitial cystitis (IC), using molecular methods to avoid difficulties with the culture and recovery of viable organisms, and the problems associated with the recovery of low numbers of culturable organisms. Thirty-three
Yue Huo et al.
Current microbiology, 76(1), 22-28 (2018-11-02)
A Gram-positive bacterium (DCY118T) was isolated from ginseng-cultivated soil in Gochang-gun, Republic of Korea. This isolate was assigned to the genus Ornithinimicrobium and is closely related to Ornithinimicrobium kibberense K22-20T (98.8%), O. pekingense DSM 21552T (98.5%), O. algicola JC311T (98.2%)
Joseph W Duris et al.
Water research, 47(1), 300-314 (2012-11-15)
The occurrence and distribution of fecal indicator bacteria (FIB) and bacterial and protozoan pathogens are controlled by diverse factors. To investigate these factors in Pennsylvania streams, 217 samples were collected quarterly from a 27-station water-quality monitoring network from July 2007
Mohamed El-Agamy Farh et al.
Journal of microbiology (Seoul, Korea), 55(10), 767-774 (2017-09-29)
Gram-staining-negative, uniflagellated, rod-shaped, designated as DCY110
Johan Sukweenadhi et al.
Antonie van Leeuwenhoek, 106(5), 935-945 (2014-08-30)
Strain DCY84(T), a Gram-stain positive, rod-shaped, aerobic, spore-forming bacterium, motile by means of peritrichous flagella, was isolated from humus soil from Yongin forest in Gyeonggi province, South Korea. Strain DCY84(T) shared the highest sequence similarity with Paenibacillus barengoltzii KACC 15270(T)

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