T4427
Terminal Transferase from calf thymus
buffered aqueous glycerol solution
Synonyme(s) :
TdT, Terminal Deoxynucleotidyl Transferase
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About This Item
Produits recommandés
Qualité
Molecular Biology
for molecular biology
Forme
buffered aqueous glycerol solution
Poids mol.
60 kDa
Concentration
>5000 U/mL
Numéro d'accès UniProt
Activité étrangère
Exonuclease and endonuclease, free
Température de stockage
−20°C
Informations sur le gène
cow ... DNTT(281120)
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Description générale
Bovine terminal transferase (TdT) is a primer-dependent polymerase that catalyzes the addition of deoxynucleotides to the 3′-OH terminus of DNA molecules with the release of inorganic phosphate. TdT reacts preferentially with either single-stranded DNA molecules or double-stranded-DNA with 3′ overhangs, but procedures have been developed to label blunt ends or 3′-recessive ends. In a reaction mixture, the divalent ion (Co2+, Mn2+, Mg2+) will influence purine and pyrimidine polymerization rate. Activities of TdT are also affected by the bases (dATP, dCTP, dGTP and dTTP) present.
Application
Suitable for:
- Addition of homopolymers to vectors, inserts and cDNA for cloning
- Labeling the 3′-end of double- and single-stranded DNA with non-radioactive or radioactive labels
- Carrying out in vitro mutagenesis by adding single nucleotides to DNA
- Use in TUNEL assays
Composants
Terminal transferase is supplied as a solution of 50 mM potassium phosphate (pH 7.4), 1 mM 2-mercaptoethanol and 50% glycerol (v/v).
Définition de l'unité
One unit will incorporate 1 nanomole of dATP into acid-precipitable material in one hour at 37 °C using d(pT)6 as primer.
Remarque sur l'analyse
Activity assay uses 200 mM potassium cacodylate, pH 7.2, 4 mM MgCl2, 1 mM 2-mercaptoethanol, 1 mM 3H-dATP, 70 μM d(pT)6, 37 °C.
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
11 - Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 3
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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D G Remick et al.
The American journal of pathology, 136(1), 49-60 (1990-01-01)
Tumor necrosis factor-alpha (TNF) has been implicated strongly as a principal mediator in the pathogenesis of septic shock. The authors investigated the in vivo production of TNF in CBA/J and CD-1 mice that had been primed by an intraperitoneal injection
Edward A Motea et al.
ACS chemical biology, 7(6), 988-998 (2012-03-07)
Acute lymphoblastic leukemia (ALL) is the most common type of childhood cancer, presenting with approximately 5,000 new cases each year in the United States. An interesting enzyme implicated in this disease is terminal deoxynucleotidyl transferase (TdT), a specialized DNA polymerase
C P Tu et al.
Gene, 10(2), 177-183 (1980-07-01)
Cordycepin-5'-triphosphate (3'-deoxyadenosine-5'-triphosphate) can be incorporated into the 3'-ends of DNA fragments using terminal deoxynucleotidyl transferase from calf thymus (Bollum, 1974). Because cordycepin-5'-monophosphate lacks a 3'-OH group, only a single residue is incorporated. Furthermore, DNA molecules that contain cordycepin-5'-monophosphate at their
Marcel Hollenstein et al.
Bioorganic & medicinal chemistry letters, 22(13), 4428-4430 (2012-05-29)
Pyrene-deoxynucleoside triphosphates (dPTPs), varying by the positioning of the aromatic system, were synthesized. Their ability to function as substrates for the Klenow fragment of Escherichia coli DNA polymerase I and the TdT polymerase was assessed. The dPTPs are all equally
Yuan Zhang et al.
Cellular immunology, 274(1-2), 19-25 (2012-04-03)
Secondary rearrangements of the T cell receptor (TCR) represent a genetic correction mechanism which changes T cell specificity by re-activating V(D)J recombination in peripheral T cells. Murine T-cell hybridoma A1.1 was employed to investigate whether antigenic stimulation induced re-expression of
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