説明
Terminal Deoxynucleotidyl Transferase (TdT) is a template-independent DNA polymerase that catalyzes the repetitive addition of deoxynucleotides to the 3'-hydroxyl termini of oligonucleotides, single-stranded, and double-stranded DNA. The TdT reaction requires short sequences of at least three bases to act as primers. When using RNA as a substrate, TdT activity is highly dependent on the tertiary structure and nucleotide composition at the 3’-end of the acceptor RNA. In general, TdT exhibits lower efficiency with RNA templates compared to DNA templates.
Specification
|
Cat. No. |
10302ES76 / 10302ES86 / 10302ES99 / 10302ES98 |
|
Size |
500 U / 2,500 U / 180,000 U / 333,000 U |
|
Concentration |
20 U/µL |
|
Source |
Recombinant expression in E.coli |
|
Unit Definition |
One unit (U) is defined as the amount of enzyme required to incorporate 1 nmol of deoxyribonucleotide into polydeoxynucleotides in 60 minutes at 37°C. |
|
Inhibitors |
Metal chelators, ammonium, chloride, iodide, and phosphate ions. |
|
Inactivation |
Add EDTA and heat at 70°C for 10 min. |
Components
|
Components No. |
Name |
10302ES76 |
10302ES86 |
10302ES99 |
10302ES98 |
|
10302-A |
Terminal Deoxynucleotidyl Transferase (20 U/µL) |
25 μL |
125 μL |
9 mL |
16.65 mL |
|
10302-B |
5× Reaction Buffer |
400 μL |
2×1 mL |
40 mL |
74 mL |
Storage
This product should be stored at -25~-15℃ for 1 year.
Application
DNA End Labeling; TUNEL Assay for Apoptosis Detection; Next-Generation Sequencing (NGS) Library Preparation; DNA Tail Extension and Modification; Molecular Diagnostics and Biosensing(CRISPR or DNAzyme biosensors).
Figures
1. High purity — no nicking enzyme detectable, no endonuclease detected.
Figure 1. Residual nicking enzyme and exonuclease activities were tested in two independent batches, and no residues were detected.
Documents:
Safety Data Sheet
Manuals
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