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Merck
CN

KEM0021

Sigma-Aldrich

T4 RNA Ligase 1

Ultra-pure enzyme for nucleic acid modifications

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Molecular Biology

Assay

>99% (SDS-PAGE)

form

buffered aqueous solution

specific activity

16,800 U/mg

concentration

20,000 U/mL

shipped in

dry ice

storage temp.

−20°C

General description

T4 RNA Ligase catalyzes the ATP-dependent ligation of single-stranded nucleic acids (RNA or DNA).

Application

Suitable for:
  • Single stranded DNA ligation
  • RNA ligation
  • Labeling of 3′ termini of RNA

Features and Benefits

  • Ultra-purification process for ultimate enzyme performance
  • Highest quality specifications for ultimate product consistency
  • Undetectable DNA and nuclease contamination

Physical form

Supplied in 10 mM Tris-HCl, 50 mM KCl, 1 mM DTT, 0.1 mM EDTA and 50% glycerol at pH 7.5 @ 25° C.

Other Notes

One unit is defined as the amount of enzyme required to ligate 50% of 0.4 μg of an equimolar mix of two single stranded 23 base RNA oligonucleotides (one 5′-phosphorylated) in 20 μL 1X T4 RNA Ligase Buffer following a 30 minute incubation at 37° C.
Source of protein: A recombinant E. coli strain carrying the T4 RNA Ligase gene from bacteriophage T4.
Supplied with:KEM0021B (10X T4 RNA Ligase Buffer)
Unit size: 10,000 U

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2

Storage Class Code

10 - Combustible liquids

Regulatory Information

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Laure Rittié et al.
Journal of cell communication and signaling, 2(1-2), 25-45 (2008-09-04)
Since molecular cloning has become routine laboratory technique, manufacturers offer countless sources of enzymes to generate and manipulate nucleic acids. Thus, selecting the appropriate enzyme for a specific task may seem difficult to the novice. This review aims at providing

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