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Gentra Puregene Buccal Cell Kit

For purification of archive-quality DNA from buccal cells and mouthwash

  • Archive-quality DNA for long-term storage
  • Reproducible DNA purification
  • A complete solution for sample-to-storage purification
  • Convenient, scalable purification procedure

The Gentra Puregene Buccal Cell Kit enables purification of high-molecular-weight (100–200 kb) DNA suitable for archiving. The flexible and convenient purification procedure gently removes contaminants and inhibitors and allows samples to be purified for use as long-term references.

Артикул: 158845
Gentra Puregene Buccal Cell Kit (100)
For 100 preps: 100 Buccal Collection Brushes, RNase A Solution, Glycogen Solution, and Reagents


Reproducible purification of archive-quality DNA

Purity of DNA has a significant effect on the accuracy of results obtained in downstream applications. Sensitive downstream applications, such as PCR, demand the use of DNA of the highest quality and molecular weight for reliable results. The Gentra Puregene Buccal Cell Kit removes contaminants and enzyme inhibitors enabling purification of highly stable DNA well-suited for archiving. Purified DNA is of high quality demonstrated by molecular weights of 100–200 kb.


Cells are lysed with an anionic detergent in the presence of a DNA stabilizer. The DNA stabilizer limits the activity of intracellular DNases and also DNases found elsewhere in the environment. RNA is then removed by treatment with an RNA digesting enzyme. Other contaminants, such as proteins, are removed by salt precipitation. Finally, the genomic DNA is recovered by precipitation with alcohol and dissolved in hydration solution (1 mM EDTA, 10 mM Tris·Cl pH 7.5). Purified DNA typically has an A260/A280 ratio between 1.7 and 1.9, and is up to 200 kb in size. The DNA can be safely stored at 2–8°C, –20°C, or –80°C.


The simple Puregene procedure uses a modified salting-out precipitation method for purification of DNA. No mixing or dilution of solutions is necessary, and hands-on time is minimized. The procedure provides convenient stopping points that allow safe, temporary storage of partially purified samples.


DNA purified using the Gentra Puregene Buccal Cell Kit is highly stable and suited for use in a wide range of applications, such as:

  • DNA archiving
  • PCR
  • SNP analysis
  • Southern blotting 

Applications PCR, restriction digest, Southern analysis, SNP analysis
Elution volume 20 µl (varies)
Format Scalable
Main sample type Buccal brush, mouth wash
Processing Manual
Purification of total RNA, miRNA, poly A+ mRNA, DNA or protein Genomic DNA
Sample amount 1 swab / 10 ml
Technology Modified salting-out precipitation method
Time per run or per prep 25 - 60 minutes (+ cell lysis + DNA rehydration)
Yield 1µg/swab / 46µg/10ml mouth wash