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Factory wholesale 97404-02-9 - Proteinase K with cas 39450-01-6 – Unilong


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We know that we only thrive if we can guarantee our combined price competiveness and quality advantageous at the same time for 305-84-0, 68187-89-3, 99-93-4, We can customize the products according to your requirements and we can pack it for you when you order.
Factory wholesale 97404-02-9 - Proteinase K with cas 39450-01-6 – Unilong Detail:

No.1 liquid

Protein specific activity>800U/mL, the concentration is 20mg/mL, no Nickase residue

No.2 powder

Appearance White lyophilized powder
Electrophoretic purity ≥95%
Enzyme activity ≥30U/mg
Nucleic acid residue Invisible
Deoxyribonuclease residue Invisible
Ribonuclease residue Invisible
Cart No. G1205-10ML
Storage When stored at –20 °C, the product retains activity for at least 1 years, ice bag transportation.

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

1. Genetic diagnosis kit.
2. RNA and DNA extraction kits.
3. Extract non-protein components in tissues and degrade protein impurities (such as preparation of DNA vaccines and heparin).
4. Preparation of Chromosomal DNA for Pulse Electrophoresis.
5. Western blotting.
6. Development and production of enzymatic glycated albumin reagents in the field of in vitro diagnostics.

1. 30mg/bottle 1g/bottle or 100g/bottle
2. 1kgs/foil bag

Proteinase K is a stable serine protease with broad substrate specificity. It degrades many proteins in the native state even in the presence of detergents. It is not activated by metal ions, chelating agents (for example, EDTA), sulfhydryl reagents, or by tripsin or chymotrypsin inhibitors. It is stable over a wide pH range (4–12.5), with optimal activity at pH 6.5–9.5. Activity can be stimulated by addition of denaturing agents (SDS and Urea). Rapid denaturation of the enzyme occurs at temperature above 70°C. Autolysis of the enzyme occurs increasingly at alkaline pH. However, Proteinase K is not completely inactivated by autolysis. Some enzyme fragments continue to maintain their complete proteolytic activity, even after extensive autolysis. Proteinase K is frequently used in molecular biology applications to digest unwanted proteins, such as nucleases in DNA or RNA preparations from microorganisms, cultured cells, and plants. The enzyme is typically used at 50–200 ug/ml in nucleic acid preparations at pH 7.5–8.0 and 37~55oC. Incubation times vary from 30 minutes to 18 hours.

A stable and highly reactive serine protease; used for protein and nucleic acid isolation.Proteinase K is used in the purification of RNA and DNA from tissues or cell lines.


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Factory wholesale 97404-02-9 - Proteinase K with cas 39450-01-6 – Unilong detail pictures

Factory wholesale 97404-02-9 - Proteinase K with cas 39450-01-6 – Unilong detail pictures

Factory wholesale 97404-02-9 - Proteinase K with cas 39450-01-6 – Unilong detail pictures


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We pursue the administration tenet of "Quality is superior, Services is supreme, Standing is first", and will sincerely create and share success with all customers for Factory wholesale 97404-02-9 - Proteinase K with cas 39450-01-6 – Unilong , The product will supply to all over the world, such as: Qatar, Toronto, Wellington, We have constructed strong and long co-operation relationship with an enormous quantity of companies within this business in Kenya and overseas. Immediate and specialist after-sale service supplied by our consultant group has happy our buyers. Detailed Info and parameters from the merchandise will probably be sent to you for any thorough acknowledge. Free samples may be delivered and company check out to our corporation. n Kenya for negotiation is constantly welcome. Hope to get inquiries type you and construct a long-term co-operation partnership.
  • Sales manager is very enthusiastic and professional, gave us a great concessions and product quality is very good,thank you very much!
    5 Stars By Paula from Madagascar - 2018.12.22 12:52
    It is a very good, very rare business partners, looking forward to the next more perfect cooperation!
    5 Stars By Megan from Canada - 2018.12.10 19:03
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