V900887
Proteinase K from Tritirachium album
Vetec™, reagent grade, powder, ≥30 units/mg protein
Synonym(s):
Endopeptidase K
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About This Item
CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352204
Recommended Products
grade
reagent grade
product line
Vetec™
form
powder
specific activity
≥30 units/mg protein
mol wt
28.93 kDa
technique(s)
DNA extraction: suitable
foreign activity
Dnase ≤30 units/mg solid
storage temp.
−20°C
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Application
Useful for the proteolytic inactivation of nucleases during the isolation of DNA and RNA.
Removes endotoxins that bind to cationic proteins such as lysozyme and ribonuclease A.
Reported useful for the isolation of hepatic, yeast, and mung bean mitochondria
Determination of enzyme localization on membranes
Treatment of paraffin embedded tissue sections to expose antigen binding sites for antibody labeling.
Digestion of proteins from brain tissue samples for prions in Transmissible Spongiform Encephalopathies (TSE) research.
Removes endotoxins that bind to cationic proteins such as lysozyme and ribonuclease A.
Reported useful for the isolation of hepatic, yeast, and mung bean mitochondria
Determination of enzyme localization on membranes
Treatment of paraffin embedded tissue sections to expose antigen binding sites for antibody labeling.
Digestion of proteins from brain tissue samples for prions in Transmissible Spongiform Encephalopathies (TSE) research.
Biochem/physiol Actions
Proteinase K is a stable and highly reactive serine protease. Evidence from crystal and molecular structure studies indicates the enzyme belongs to the subtilisin family with an active-site catalytic triad (Asp39-His69-Ser224). It is stable in a broad range of environments: pH, buffer salts, detergents (SDS), and temperature. In the presence of 0.1-0.5% SDS, proteinase K retains activity and will digest a variety of proteins and nucleases in DNA preparations without compromising the integrity of the isolated DNA.
Unit Definition
One unit will hydrolyze urea denatured hemoglobin to produce color equivalent to 1.0 micromole of tyrosine per minute at pH 7.5 at 37 deg C.
Legal Information
Vetec is a trademark of Merck KGaA, Darmstadt, Germany
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Information
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