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Proteinase K

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BunnyTeeth Technology Inc.
[China]

Address
Unit A, Zhongdan Bioscience Industrial Park, Jiangbei New District Nanjing Jiangsu
Phone
86-025-6230608
Contact name
Yijun Zhu

Quick Information

  • Place of Origin: China
  • :

Description

Proteinase K


Protease K is a serine protease with efficient enzymatic activity and broad substrate specificity, preferentially breaking down ester and peptide bonds adjacent to the C-terminus of hydrophobic, sulfur-containing, and aromatic amino acids, and is often used to degrade proteins to produce short peptides. It has the typical catalytic triad Asp39-His69-Ser224 characteristic of serine proteases and has two Ca2+ binding sites around the active center to increase its stability, allowing it to maintain high enzymatic activity under a wider range of conditions.


Technical Features

AppearanceColorless to   light brown liquid
Specific   activity≥800 U/mL
Concentration≥20 mg/mL
Deoxyribonuclease activityDeoxyribonuclease activity not detected
Ribonuclease activityRibonuclease activity not detected


Attributes                                                    

Source

Tritirachium album

Remark

Classification

EC 3.4.21.64

 

Molecular weight

29 kDa (SDS-PAGE)

 

Isoelectric point

7.81

 

Optimum pH

7.0-12.0 all have high activity

Fig. 1

Temperature

65 ℃

Fig. 2

pH Stability

pH 4.5-12.5 (25 ℃, 16 h)

Fig. 3

Thermal stability

Stable below 50 ℃

(pH 8.0, 30min)

Fig. 4

Activators

SDS, Urea

 

Inhibitors

Di-isopropyl fluorophosphate (DFIP), benzene sulfonyl fluoride (PMSF)

 

Storage conditions

2-25 ℃ in 12 months

 




Application

1.     Genetic diagnostic kits;

2.      RNA and DNA extraction kits;

3.     Extraction of non-protein components from tissues, degradation of protein-like impurities, such as DNA vaccine and heparin preparation;

4.      Preparation of chromosomal DNA for pulse electrophoresis;

5.      Protein blotting;

6.      Development and mass production of enzymatic glycated albumin reagents for IVD reagents.


Precaution

Wear protective gloves and goggles and keep well ventilated. The product may cause allergic skin reactions.


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