D8276
DNA Polymerase I, Klenow Fragment from Escherichia coli
buffered aqueous glycerol solution
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About This Item
Produits recommandés
Qualité
for molecular biology
Forme
buffered aqueous glycerol solution
Poids mol.
103 kDa
Concentration
~3,000 units/mL
Numéro d'accès UniProt
Activité étrangère
Endonuclease, none detected
Conditions d'expédition
wet ice
Température de stockage
−20°C
Informations sur le gène
Escherichia coli K12 ... polA(948356)
Description générale
DNA polymerase I yields two fragments (small and large) upon protease digestion. The large fragment (Klenow fragment) loses the 5′ exonuclease activity that is present in the intact holoenzyme. However, it retains both the polymerase 5′→3′ activity and the 3′→5′ exonuclease activity of the native enzyme.
Application
Suitable for:
- DNA sequencing by the Sanger dideoxy method
- Synthesis of the complementary strand of cDNA
- Filling in 5′-overhangs in double stranded DNA to form blunt ends
- Mutagenesis of DNA with second strand synthesis using oligonucleotides
- Labeling DNA by the random primer method
Composants
DNA Polymerase I is supplied as a solution in 50 mM Tris-HCl (pH 7.5), 1 mM EDTA, 5 mM dithiothretol, and 50% glycerol (v/v) .
Définition de l'unité
One unit converts 10 nanomoles of deoxyribonucleoside triphosphates into acid insoluble material in 30 min. at 37 °C.
Reconstitution
The enzyme solution may be diluted with 50 mM Tris-HCl, pH 7.5, 100 mM ammonium sulfate, 10 mM 2-mercaptoethanol, and 1 mg/ml bovine serum albumin.
Remarque sur l'analyse
The activity is assayed in a reaction mixture containing 50 mM potassium phosphate (pH 7.5), 3 mM MgCl2, 1 mM 2-mercaptoethanol, 32.5 μM 32P-dATP, 32.5 μM dTTP, 62.5 μg/ml poly(dA-dT) and 0.01-1 unit enzyme.
Produit(s) apparenté(s)
Réf. du produit
Description
Tarif
Glutathione S-Transferase from E. coli, recombinant, expressed in E. coli, buffered aqueous solution
Ribonucléase A from bovine pancreas, for molecular biology, ≥70 Kunitz units/mg protein, lyophilized
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Resp. Sens. 1
Code de la classe de stockage
10 - Combustible liquids
Classe de danger pour l'eau (WGK)
WGK 1
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Équipement de protection individuelle
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
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