Proteinase K, MB and NGS Grade

Proteinase K, Molecular Biology Grade and next-generation sequencing Grade
  • High activity and exceptional purity
  • Active at high temperatures and denaturing conditions
  • From Parengyodontium album (Tritirachium album)
  • Free of exonucleases, endonucleases, and ribonucleases
  • Lyophilized or as a solution (MB grade only)
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Proteinase K, MB and NGS Grade

1

Why proteinase K ?

  • It is a broad spectrum endopeptidase with a very high specific activity
  • It is active under a wide range of reaction conditions, including elevated temperatures and presence of SDS
  • It does not compromise the integrity os isolated DNA or RNA during nucleic acid preparations
  • It is free of exonucleases, endonucleases, and ribonucleases
  • Proteinase K NGS Grade: an extra purification step results in significantly increased solubility (2.5 fold), increased specific activity, and decreased DNA content, compared to ou Molecular Biology Grade product.
2

Features

  • Recombinant broad-spectrum non-specific protease derived from Tritirachium album and over-expressed in Pichia pastoris
  • High activity and exceptional purity
  • Active at high temperatures (up to 56°C) and denaturing conditions
  • Stable over a wide pH range: 4.0–12.5 (optimum pH 7.5–8.0)
  • Decreased amount of host DNA (≤ 10 pg/mg / MBG or ≤ 0.1 pg/mg NGS)
  • Units: One unit of Proteinase K hydrolyzes urea-denaturated hemoglobin producing color equivalent of 1 μmol tyrosine per 1 min at 37°C and pH 7.5 (Folin & Ciocalteu’s method), 1 U = 1 mAnsonU
3

Applications

  • Extraction of DNA and RNA from different starting materials
  • Purification of target material from contaminating proteins
  • Removal of DNases and RNases during nucleic acids isolation
4

That's how important proteinase K is

  • Proteinase K is a widely used enzyme to digest proteins in various applications such as nucleic acid isolation and purification
  • The isolated material is used in a variety of experiments and diagnostic applications
  • The quality of this basic enzyme guarantees the success of the whole experiment

Proteinase K MB Grade – Lyophilized powder

Solubility in water: ≥ 20 mg/ml

Activity: ≥ 30 U/mg lyophilizate

≥ 40 U/mg protein

Protein content:  ≥ 70% Protein content is determined by measuring absorbance at 280 nm.

DNA content: ≤ 10 pg/mg by qPCR

 

Proteinase K MB Grade – Solution

Proteinase K concentration: 20 mg/ml

Activity: ≥ 800 U/ml

DNA content: ≤ 0.25 pg/U by qPCR

 

Proteinase K – Lyophilized powder, NGS Grade

DNA content: ≤ 0.1 pg/mg by qPCR

Solubility in water: ≤ 0.1 pg/mg by qPCR

Activity: ≤ 0.1 pg/mg by qPCR

≥ 45 U/mg protein

Protein content: ≥ 70% Protein content is determined by measuring absorbance at 280 nm.

 

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