D2886
DNA Ligase from T4-infected Escherichia coli
buffered aqueous glycerol solution
Synonym(s):
Polydeoxyribonucleotide Synthase, Polynucleotide Ligase, T4 DNA Ligase
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About This Item
CAS Number:
UNSPSC Code:
12352204
NACRES:
NA.53
EC Number:
232-770-0
MDL number:
Specific activity:
4,000 U/mL
grade
Molecular Biology
Quality Level
form
buffered aqueous glycerol solution
specific activity
4,000 U/mL
mol wt
68 kDa
UniProt accession no.
storage temp.
−20°C
Gene Information
bacteriophage T4 ... 30(1258680)
Related Categories
Application
Suitable for:
- Ligation of blunt ended or cohesive DNA fragments
- Ligation of cloning vector and restriction insert fragments
- Seal nicks in double stranded DNA and RNA or DNA/RNA hybrids
- Couple RNA single strands by bridging oligonucleotide adapters
Biochem/physiol Actions
T4 DNA Ligase forms an energy dependent phosphodiester linkage between the termini of adjacent polynucleotides of duplex DNA. The ligation reaction requires ATP as a cofactor. Ligation of blunt-ended fragments requires higher enzyme concentration and can be facilitated by using PEG in the reaction mixture. The enzyme requires a 3′ hydroxyl and 5′ phosphate for ligation. Self-ligation of vector DNA can be prevented by dephosphorylation with alkaline phosphatase. T4 ligase plays an active role in repair of DNA and RNA nicks.
Other Notes
One Weiss unit is defined as the amount of enzyme required to catalyze the exchange of 1 nmole of P32 from pyrophosphate into ATP as Norit-absorbable material in 20 minutes at 37°C.
T4 DNA Ligase is inactivated by heating at 65 °C for 10 minutes.
T4 DNA Ligase is supplied in a solution containing 20 mM Tris-HCl (pH 7.5), 50 mM KCl, 1 mM DTT, and 50% (v/v) glycerol.
signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
Storage Class
10 - Combustible liquids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
Regulatory Information
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Adam B Robertson et al.
The Journal of biological chemistry, 287(39), 32953-32966 (2012-08-01)
The Escherichia coli very short patch (VSP) repair pathway corrects thymidine-guanine mismatches that result from spontaneous hydrolytic deamination damage of 5-methyl cytosine. The VSP repair pathway requires the Vsr endonuclease, DNA polymerase I, a DNA ligase, MutS, and MutL to
Sambrook, J., et al.
Molecular Cloning: A Laboratory Manual, 1-1 (1989)
Athena Kantartzis et al.
Cell reports, 2(2), 216-222 (2012-09-04)
Trinucleotide repeat (TNR) expansions are the underlying cause of more than 40 neurodegenerative and neuromuscular diseases, including myotonic dystrophy and Huntington's disease. Although genetic evidence points to errors in DNA replication and/or repair as the cause of these diseases, clear
Justin L Sparks et al.
Molecular cell, 47(6), 980-986 (2012-08-07)
Ribonucleotides are incorporated into DNA by the replicative DNA polymerases at frequencies of about 2 per kb, which makes them by far the most abundant form of potential DNA damage in the cell. Their removal is essential for restoring a
Tiansheng Wang et al.
Bioorganic & medicinal chemistry letters, 22(11), 3699-3703 (2012-05-09)
A series of 4-amino-pyrido[2,3-d]pyrimidin-5(8H)-ones were designed and synthesized as a novel class of inhibitors of NAD(+)-dependent DNA ligase that possess potency against Gram-positive bacteria.
Related Content
Instructions
Global Trade Item Number
| SKU | GTIN |
|---|---|
| D2886-100UN | 04061835572540 |
| D2886-500UN | 04061833562642 |
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