This product is not tested for salt tolerance, and therefore, data is not available.
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Nombre del producto
Desoxirribonucleasa I from bovine pancreas, lyophilized powder, Protein ≥85 %, ≥400 Kunitz units/mg protein
biological source
bovine pancreas
form
lyophilized powder
specific activity
≥400 Kunitz units/mg protein
mol wt
~31 kDa
composition
Protein, ≥85%
technique(s)
DNA extraction: suitable
solubility
0.15 M NaCl: soluble 5.0 mg/mL, hazy
suitability
suitable for molecular biology
application(s)
diagnostic assay manufacturing
diagnostic assay manufacturing
foreign activity
RNase ≤0.02%
shipped in
wet ice
storage temp.
−20°C
Quality Level
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Categorías relacionadas
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Este artículo | D4527 | D4513 | D4263 |
|---|---|---|---|
| biological source bovine pancreas | biological source bovine pancreas | biological source bovine pancreas | biological source bovine pancreas |
| technique(s) DNA extraction: suitable | technique(s) DNA extraction: suitable | technique(s) DNA purification: suitable | technique(s) DNA extraction: suitable |
| specific activity ≥400 Kunitz units/mg protein | specific activity ≥2,000 units/mg protein | specific activity ≥2,000 units/mg protein | specific activity 1700—2300 U/vial |
| application(s) diagnostic assay manufacturing | application(s) diagnostic assay manufacturing | application(s) diagnostic assay manufacturing | application(s) diagnostic assay manufacturing |
| form lyophilized powder | form lyophilized powder | form lyophilized powder | form powder |
| suitability suitable for molecular biology | suitability suitable for molecular biology | suitability suitable for molecular biology | suitability suitable for molecular biology |
Analysis Note
Application
- Reduce la viscosidad proporcionando mejores rendimientos mediante la eliminación del ADN en el aislamiento de células primarias:
- Incorporando bases marcadas en el ADN: Muesca de ADN
- Marcaje radiactivo
- Aplicaciones de bioprocesamiento: Extracción del ADN
- Eliminar el ADN genómico de las preparaciones de ARN antes de una RT-PCR
- Transcripción in vitro
- Desplazamiento de muescas
- Huella de ADNasa
- Regulación de la polimerización de la actina en las células, y apoptosis celular
- Entrecruzamiento UV de proteínas con ácidos nucleicos
- La ADNasa desempeña un papel en la regulación de la polimerización de la actina en las células y participa en el proceso de la apoptosis [1]
Biochem/physiol Actions
Features and Benefits
General description
- Nuestra ADNasa I digiere ADN bicatenario y monocatenario en oligonucleótidos y mononucleótidos.
- La ADNasa pancreática bovina existe como cuatro isoenzimas, con puntos isoeléctricos para A, B, C y D: 5,22, 4,96, 5,06 y 4,78.3. La forma predominante es la A, con cantidades menores de B y C, y sólo una cantidad mínima de D.
- La estructura de la ADNasa I se parece a la estructura de la exonucleasa III Incluye dos láminas ß centrales. Cada lámina β está compuesta por seis cadenas-β. Este complejo de láminas β está rodeado por un extenso lazo y regiones α-helicoidales. Esta enzima comparte semejanza estructural con la exonucleasa III.[1]
Other Notes
Physical form
Preparation Note
Related product
signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
Clase de almacenamiento
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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Protocolos
To standardize a procedure for the enzymatic assay of Deoxyribonuclease I.
Contenido relacionado
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What is the salt tolerance of this DNase I?
1 answer-
Helpful?
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I would like to know if this product can be used to eliminate DNA from cells in tissue culture (12 wells chamber slide) before immunofluorescent staining? if it can be used - how?
1 answer-
This product can be used to eliminate DNA from cells in tissue culture. Concentration and incubation time should be optimized based on the specific application.
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HOW CAN I PRESERVE DN25 DILUTED and filtered in culture medium? 4C or -20 C?. It will lose activity?
1 answer-
This product is soluble in 0.15 M NaCl at 5 mg/mL. Solutions prepared at 10 mg/mL in 0.15 M NaCl may lose up to 10% activity when stored for 1 week in aliquots at –20 °C. The same solutions stored in aliquots at 2-8 °C can lose up to 20% activity. Please see the link below to review the product datasheet for additional information:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/233/818/dn25pis-ms.pdfHelpful?
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What is the recommended method for long-term storage of the 1 gram bottle of DN25 in solution?
1 answer-
The user bulletin provides guidance on the storage of DNase I once reconstituted. When stored in aliquots at -20°C, solutions of DNase I at 10 mg/mL in 0.15 M NaCl may lose 10% of activity over a week, while storing the same solutions at 2–8°C can result in a 20% activity loss. Alternatively, maintaining solutions at a minimum concentration of 1 mg protein/mL with 5 mM calcium chloride at -20°C can retain 90% activity for at least a year. Solutions with 0.1 mg protein/mL are less stable and may need gelatin as a stabilizer.
For applications not affected by glycerol, two storage buffer options are available as they do not freeze at -20°C:
• 20 mM sodium acetate (pH 6.5) with 5 mM CaCl2, 0.1 mM phenylmethylsulfonyl fluoride (PMSF), and 50% (v/v) glycerol, containing DNase I at 5 mg/mL.
• 10 mM Tris-HCl (pH 7.5) with 50 mM NaCl, 10 mM MgCl2, 1 mM DTT, and 50% (v/v) glycerol, with DNase I at 2 mg/mL.Helpful?
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Hi I use the DNase during isolation of cells from lung tissue. Do I need to filter the DNase solution before usage?
1 answer-
This is not a sterile product. If sterility is required due to the specific application, solutions may be filter sterilized before use. Please see the link below to review the product datasheet:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/233/818/dn25pis-ms.pdfHelpful?
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I use the DNase when I isolate lung cells from lung. Do I need to filter them before I use? I will culture the isolated lung cells.
1 answer-
Yes, please filter the DNase solution before use in cell culture, preferably with a 0.22 um filter. The powder is not sterilized as provided.
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