
Biosearch Technologies is part of LGC Diagnostics & Genomics – Learn More
In oligonucleotide synthesis, the classic heterocyclic bases are dA, dC, dG, and dT.
The classic heterocyclic base protection groups (Bz-dA, Bz- dC and iBu-dG) are routinely removed using ammonium hydroxide solution with heating. Unfortunately, many modifiers and labels used in oligonucleotide synthesis will not withstand prolonged exposure to such strongly alkaline conditions.
so takes place at room temperature if left for 120 minutes.AMA deprotection is not recommended for use in the presence of sensitive labels such as cyanine or rhodamine (TAMRA) dyes, or where there are Bz-protected C nucleosides as this will result in transamidation with methylamine. dmf-dG works particularly well with tbutylamine/methanol/water (1:1:2) as used for rhodamine containing modifiers (e.g. TAMRA).
Need some support with placing an order, setting up an account, or finding the right protocol?
Contact us| Europe, Middle East, and Africa | |
|---|---|
| UK | +44 1992 470 757 |
| Germany | +49 30 1663 54600 |
| North America, Latin America | |
| Wisconsin, USA | +1 888 575 9695 |
| Asia Pacific | |
| China | +8621-22509000 |
| Singapore | +65 6734 4800 |