Exonuclease I, E.coli catalyzes the removal of nucleotides from single-stranded DNA in the 3’→5’ direction, releasing deoxyribonucleoside 5'-monophosphates and leaving 5'-terminal dinucleotides intact. Hydrolysis cannot proceed if the 3’-terminus is phosphorylated.
Description
Removal of single-stranded primer oligonucleotides from: ; o PCR mixtures for applications involving sequencing or labelling ; o from nucleic acid mixtures ; Assaying for the presence of single-stranded DNA with a 3'-hydroxyl terminus ; Note: This product is not suitable for NGS or second strand cDNA synthesis applications.
Notes
One unit is defined as the amount of Exonuclease I, E. coli that is required to catalyze the release of 10 nmol of acid soluble nucleotides from heat-denatured DNA in 30 minutes at 37°C in 1X Exonuclease I Reaction Buffer.
This product is distributed for laboratory research only. Caution: Not for diagnostic use.
Concentration
20 U/μl
Form
Enzyme supplied with 10X Reaction Buffer
Quantity
2000 U (100 μl)
Storage
Store all components at -20°C.
Shipping Condition
Dry Ice
Storage Condition
-20C
Buffer
Storage Buffer: 20 mM HEPES (pH 7.1), 150 mM NaCl, 1 mM DTT, 1 mM EDTA, and 50% (v/v) Glycerol.