This product is not tested for salt tolerance, and therefore, data is not available.
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| 容量 | カタログ番号 | 在庫状況 | 単価 |
|---|---|---|---|
| 10 mg | 在庫あり出荷可能from市川市大町368 | ¥11,500 | |
| 100 mg | 在庫あり出荷可能from市川市大町368 | ¥27,900 | |
| 1 g | 在庫あり出荷可能from市川市大町368 | ¥122,000 | |
| 5 g | カートの在庫状況を確認する | ¥360,000 |
この商品について
biological source
bovine pancreas
Quality Segment
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
foreign activity
RNase ≤0.02%
shipped in
wet ice
storage temp.
−20°C
General description
- メルクのDNase Iは、二重鎖および一重鎖DNAをオリゴおよびモノヌクレオチドへと分解します。
- ウシ膵臓DNaseには、等電点A、B、CおよびDを持った4つのアイソザイムが存在します(5.22、4.96、5.06および4.78)。3。最も多いのはAであり、次いでBおよびCが多く、Dは少量存在します。
- DNase Iの構造はエキソヌクレアーゼIIIの構造と類似しており、2つの中心的なβシートを有します。各βシートは6本のβ鎖からなります。このβシートの複合体は、広範なループとαヘリックス領域で囲まれています。本酵素はエキソヌクレアーゼIIIと類似した構造を持っています。[1]
Application
- 粘度を減少させて、初代細胞単離におけるDNA除去による収量を向上:
- DNAへの標識塩基の取り込み:DNAニック
- 放射活性標識
- バイオプロセシング用途:DNA除去
- RT-PCRの前にRNA調製物からゲノムDNAを除去する
- in vitro転写
- ニック翻訳
- DNaseフットプリント法
- 細胞中のアクチン重合のアクチン調節、および細胞アポトーシス
- 核酸へのタンパク質のUV架橋結合
- DNaseは、細胞中のアクチン重合の調節に一定の役割を果たし、アポトーシスプロセスに関与[1]
Biochem/physiol Actions
Features and Benefits
Physical form
Preparation Note
Analysis Note
Other Notes
1 of 1
当該品目 | |||
|---|---|---|---|
| biological source bovine pancreas | biological source bovine pancreas | biological source bovine pancreas | biological source bovine pancreas |
| specific activity ≥400 Kunitz units/mg protein | specific activity ≥2,000 Kunitz units/mg protein | specific activity 1700—2300 U/vial | specific activity ≥60,000 dornase units/mg dry wt |
| technique(s) DNA extraction: suitable | technique(s) DNA purification: suitable | technique(s) DNA extraction: suitable | technique(s) - |
| form lyophilized powder | form lyophilized powder | form powder | form lyophilized |
| application(s) diagnostic assay manufacturing | application(s) diagnostic assay manufacturing | application(s) diagnostic assay manufacturing | application(s) - |
| suitability suitable for molecular biology | suitability suitable for molecular biology | suitability suitable for molecular biology | suitability - |
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signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
保管分類
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
プロトコル
To standardize a procedure for the enzymatic assay of Deoxyribonuclease I.
関連コンテンツ
Find protein research tools to prepare, isolate, and analyze proteins. Organized by how to extract, protect, purify, enrich, modify, and quantify proteins.
グローバルトレードアイテム番号
| カタログ番号 | GTIN |
|---|---|
| DN25-10MG | 04061835544349 |
| DN25-5G | 04061833591673 |
| DN25-100MG | 04061835556687 |
| DN25-1G | 04061835556694 |
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What is the salt tolerance of this DNase I?
1 回答-
役に立ちましたか?
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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 回答-
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.
役に立ちましたか?
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HOW CAN I PRESERVE DN25 DILUTED and filtered in culture medium? 4C or -20 C?. It will lose activity?
1 回答-
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.pdf役に立ちましたか?
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What is the recommended method for long-term storage of the 1 gram bottle of DN25 in solution?
1 回答-
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.役に立ちましたか?
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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 回答-
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.pdf役に立ちましたか?
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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 回答-
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.
役に立ちましたか?
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