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Proteinase K for mNGS (liquid) HYC114

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.

Cat.No.:HYC114

Specification:1mL/5mL/100mL/1000mL

    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. Evidence from crystal and molecular structure studies indicates the enzyme belongs to the subtilisin family with an active site catalytic triad (Asp39-His69- Ser224). The predominant site of cleavage is the peptide bond adjacent to the carboxyl group of aliphatic and aromatic amino acids with blocked alpha amino groups. It is commonly used  for its broad specificity.This product is mNGS-grade proteinase K. It contains lower nucleic acid residues while ensuring the properties of the enzyme itself remain unchanged, and can better ensure the accuracy of downstream mNGS applications.

    Components

    Components

    Size-1

    Size-2

    Size-3

    Size-4

    Proteinase K for mNGS (liquid)

    1 mL

    5 mL

    100 mL

    1000 mL

    Storage

    Store at 2-8℃, valid for 24 months.

    Specification

    Appearance

    Colorless to light brown liquid

    Specific Activity

    ≥800 U/ml

    Protein concentration

    ≥20 mg/ml

    DNase

    None detected

    RNase

    None detected

    Nickase

    None detected

    Properties

    Source

    Recombinant from Tritirachium album

    EC number

    3.4.21.64 

    Molecular weight

    29 kDa (SDS - PAGE)

    Isoelectric point

    7.81

    Optimum pH

    7.0- 12.0      

    Optimum temperature

    65 ℃       

    pH stability

    pH 4.5- 12.5 (25 ℃, 16 h)   

    Thermal stability

    Below 50 ℃ (pH 8.0, 30 min)  

    Storage stability

    Over 90% activity stored at 25℃ for 12months

    Activators

    SDS, Urea

    Inhibitors

    Diisopropyl fluorophosphate(DFIP)

    Phenylmethylsulfonyl fluoride(PMSF)

    Unit definition

    One unit (U) of Proteinase K is defined as the amount of enzyme required to hydrolyze casein to produce 1 μmol tyrosine per minute under standard determination conditions.

    Notes

    Wear protective gloves and goggles when using or weighing, and keep well ventilated after use. This product may cause skin allergic reaction and serious eye irritation. If inhaled, it may cause allergy or asthma symptoms or dyspnea. May cause respiratory irritation.

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