SAE0151
Protéinase K from Tritirachium album
free of DNA contaminants, suitable for Microbiome research, lyophilized powder, ≥30 units/mg protein
Synonyme(s) :
Endopeptidase K
About This Item
Produits recommandés
Niveau de qualité
Activité spécifique
30 units/mg protein
Poids mol.
28.93 kDa
Caractéristiques
DNA free
Conditions d'expédition
wet ice
Température de stockage
−20°C
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Description générale
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. Proteinase K was isolated from a fungus able to grow on keratin and the enzyme can digest native keratin. 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. Proteinase K is usually denatured by subsequent phenol extractions.
The study of microbial communities has been revolutionized in recent years by the widespread adoption of culture independent analytical techniques such as 16S rRNA gene sequencing and metagenomics. Since DNA contamination during sample preparation is a major problem of these sequence-based approaches, DNA extraction reagents free of DNA contaminates are essential.
Application
Élimine les endotoxines qui se lient aux protéines cationiques telles que le lysozyme et la ribonucléase A.
S′est avéré utile pour l′isolement des mitochondries hépatiques, de levure et de haricot mungo.
Détermination de la localisation des enzymes sur les membranes.
Traitement des coupes de tissus incluses en paraffine pour exposer les sites de liaison à l′antigène pour le marquage par anticorps.
Digestion des protéines des échantillons de tissu cérébral pour la recherche sur les prions responsables des encéphalopathies spongiformes transmissibles (EST).
- Proteinase K is frequently used in molecular biology applications to digest unwanted proteins, such as nucleases from DNA or RNA preparations from microorganisms, cultured cells, and plants.
- Removes endotoxins that bind to cationic proteins such as lysozyme and ribonuclease A 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.
Actions biochimiques/physiologiques
Caractéristiques et avantages
Définition de l'unité
Notes préparatoires
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
Organes cibles
Respiratory system
Code de la classe de stockage
11 - Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 1
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Certificats d'analyse (COA)
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Articles
Enzymatic cell lysis and protoplast prep processes demystified, revealing complex enzymatic reactions during sample preparation.
Enzymatic cell lysis and protoplast prep processes demystified, revealing complex enzymatic reactions during sample preparation.
Enzymatic cell lysis and protoplast prep processes demystified, revealing complex enzymatic reactions during sample preparation.
Enzymatic cell lysis and protoplast prep processes demystified, revealing complex enzymatic reactions during sample preparation.
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