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D4522

デオキシリボ核酸 from calf thymus

Type XV, Activated, lyophilized powder

別名:

DNA from calf thymus, 仔ウシ胸腺DNA, 胸腺核酸

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サイズ/SKU在庫状況単価
1 mg

出荷予測2026年10月26日from市川市大町368

¥8,330
5 mg

出荷予測2026年10月26日from市川市大町368

¥29,400
5 x 5 mg
カートの在庫状況を確認する
¥108,000

この商品について

CAS番号:
UNSPSC Code:
41106310
eCl@ss:
32160414
EC Number:
293-507-3
NACRES:
NA.52
MDL number:
Biological source:
bovine pancreas
Form:
lyophilized powder
Solubility:
water: slightly soluble
Storage temp.:
−20°C

¥8,330


出荷予測2026年10月26日詳細

高品質はそのまま、さらにお手頃な価格になりました

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biological source

bovine pancreas

Quality Segment

grade

Molecular Biology

type

Type XV

form

lyophilized powder

solubility

water: slightly soluble

storage temp.

−20°C

General description

雄および雌の仔ウシの胸腺から単離した、高品質の2本鎖鋳型DNAです。

Application

仔ウシ胸腺DNAは、DNAポリメラーゼ・アッセイの基質、非常に長い断片の増幅用、および沈殿させるための担体DNAとして非常に有用です。ゲル中のDNA含有量を測定する標準物質としておよび蛍光アッセイによるDNAの定量化に使用されました。
仔ウシ胸腺DNAは長鎖フラグメント増幅におけるDNAポリメラ-ゼアッセイの基質として、また沈殿のキャリア-DNAとして非常に有用です。

Features and Benefits

・ 37°Cで16時間インキュベーション後、ヌクレアーゼ活性非検出
・高品質のテンプレートDNA

Preparation Note

高度に重合した子ウシ胸腺DNAを用い、AposhianおよびKornbergの方法を用いてDNA分解酵素でニック (切り込み) を入れて調製しました。
1mg/mlの終濃度になるまで、一晩かけて穏やかに揺り動かしながら、分子生物学グレードの水にDNAを溶解させます。
DNA1mgは、約 20A}260unitに相当します。

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当該品目
D4764D3664D1501
description

Type XV, Activated, lyophilized powder

description

Genomic, unsheared

description

suitable for substrate for DNase (Readily soluble)

description

Type I, fibers

grade

Molecular Biology

grade

Molecular Biology

grade

-

grade

-

biological source

bovine pancreas

biological source

bovine (calf) thymus

biological source

-

biological source

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

300

form

lyophilized powder

form

lyophilized powder

form

powder or crystals

form

fibers

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

solubility

water: slightly soluble

solubility

-

solubility

-

solubility

-


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保管分類

11 - Combustible Solids

WGK

WGK 3

引火点 (F)

Not applicable

引火点(°C)

Not applicable

PPE(個人用保護具)

Eyeshields, Gloves



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質問

1–7/7 質問  
  1. Could you please confirm whether this product is suitable to be used as a DNA standard for generating a calibration curve (0–200 ng/µL) in such applications? DNA quantification using the Hoechst 33258 dye in a fluorescence-based assay.

    1 回答
    1. The molecular weight for D4522 is reported to be between 10-15 million Daltons prior to activation (nicking). 15,000 kilodaltons x (1kb/660 kilodaltons) = 22.72 kb (on average). The average number of base pairs is not measured, and therefore, this calculation is an estimate. We do not have a molecular weight measurement after it's been nicked, but it is expected to be a range below 22.72 kB. We do not have comparison data to inform us of how they may respond differently as a standard curve for a fluorescent assay. We would suggest checking to see if the mechanics behind your assay are length dependent or could be influenced by the ends being nicked or not. Products like D4764 that are deemed stable for long periods of time do not have a noted expiration or retest date.

      役に立ちましたか?

  2. Could you provide the number of base pairs for the D4522 product? For example, is it around 20kb?

    1 回答
    1. The reported molecular weight is between 10-15 million Daltons before activation (nicking), primarily as double-stranded DNA. A double-stranded DNA of 1 kb in length has a molecular weight of 660 kiloDalton. A size of 15 million daltons is equivalent to 15,000 kilodaltons. When multiplied by (1kb/660 kilodaltons), it equals 22.72 kb on average. It's important to note that the average number of base pairs is not measured, so this calculation provides an estimate.

      役に立ちましたか?

  3. Is Product D4522, Deoxyribonucleic acid, single or double stranded?

    1 回答
    1. Even though it is activated or "nicked" DNA, we have found that it is primarily double stranded.

      役に立ちましたか?

  4. What is the Department of Transportation shipping information for this product?

    1 回答
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

      役に立ちましたか?

  5. What is the solution stability of Product D4522, Deoxyribonucleic acid?

    1 回答
    1. Solutions of deoxyribonucleic acid have been stored successfully for several months at 4°C, in 10 mM Tris, pH 7.5 - 8.0, with 1 mM EDTA and without a bacteriostatic agent.  At low concentrations (25 μg/mL), DNA tends to absorb onto the surfaces of plastic tubes.  It is not recommended to store deoxyribonucleic acid in alkaline solutions since it tends to degrade at pH greater than 8.0.

      役に立ちましたか?

  6. Is BSA (bovine serum albumin) used during the method of preparation for Product D4522, Deoxyribonucleic acid?

    1 回答
    1. During the method of preparation, when deoxyribonucleic acid is nicked, BSA is added to the solution.  This is followed by an extraction method to remove all exogenous protein. We do not, however, claim this deoxyribonucleic acid is 100% clean of all proteins (including BSA).

      役に立ちましたか?

  7. What is the molecular weight of Product D4522, Deoxyribonucleic acid?

    1 回答
    1. The molecular weight is reported to be between 10-15 million Daltons prior to activation (nicking).

      役に立ちましたか?

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