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D2886

Sigma-Aldrich

DNA Ligase from T4-infected Escherichia coli

buffered aqueous glycerol solution

Synonyme(s) :

Polydeoxyribonucleotide Synthase, Polynucleotide Ligase, T4 DNA Ligase

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About This Item

Numéro CAS:
9015-85-4
Numéro de classification (Commission des enzymes):
6.5.1.1 (BRENDA, IUBMB)
Numéro CE :
232-770-0
Numéro MDL:
MFCD00163508
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.53

Qualité

for molecular biology

Forme

buffered aqueous glycerol solution

Activité spécifique

4,000 U/mL

Poids mol.

68 kDa

Numéro d'accès UniProt

P00970

Température de stockage

−20°C

Informations sur le gène

bacteriophage T4 ... 30(1258680)

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Catégories apparentées

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

Actions biochimiques/physiologiques

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.

Composants

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.

Définition de l'unité

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.

Autres remarques

T4 DNA Ligase is inactivated by heating at 65 °C for 10 minutes.

Produit(s) apparenté(s)

Réf. du produit
Description
Tarif

D9380

DNA Polymerase I from Escherichia coli lysogenic for NM 964, buffered aqueous glycerol solution

R0884

T7 RNA Polymerase, recombinant, expressed in E. coli, buffered aqueous solution

D8276

DNA Polymerase I, Klenow Fragment from Escherichia coli, buffered aqueous glycerol solution

P4978

Phosphatase, Alkaline from calf intestine, buffered aqueous glycerol solution

P4390

Polynucleotide Kinase from T4-infected Escherichia coli, 10 units/μL, buffered aqueous glycerol solution

G5663

Glutathione S-Transferase from E. coli, recombinant, expressed in E. coli, buffered aqueous solution

D7291

Deoxyribonuclease I RNase-free solution from bovine pancreas

R6513

Ribonucléase A from bovine pancreas, for molecular biology, ≥70 Kunitz units/mg protein, lyophilized

R4642

Ribonucléase A from bovine pancreas, (Solution of 50% glycerol, 10mM Tris-HCL pH 8.0)

P6911

Protéase from Streptomyces griseus, BioReagent, DNase, RNase, and nickase, none detected (No RNase.)

LIG2

QuickLink™ DNA Ligation Kit, joins blunt-end and sticky-end DNA fragments

LIG1

DNA Ligation Kit

Pictogrammes

Health hazard
GHS08

Mention d'avertissement

Danger

Mentions de danger

H334

Conseils de prudence

P261 - P284 - P501

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)

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Consulter la Bibliothèque de documents

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
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
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
Engler, M.J. and Richardson, C.C. et al.
The Enzymes, 5, 3-3 (1982)
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