Are you able to synthesize DNA oligos containing deoxyuridine (dU) instead of (deoxythymidine) dT?

Nov 5, 2013, 21:34 PM

We routinely make oligos that include deoxyuridine in place of deoxythymidine bases. The minimum synthesis scale for oligos containing dU is 100 nmoles. The modification code for internal deoxyuridine in a sequence is /ideoxyU/, while 5’ and 3’ incorporation have the modification codes of /5deoxyU/ and /3deoxyU/, respectively. More details, including pricing information, are provided on the Modifications page under the Products tab at

  • Modifications
  • DNA/RNA Synthesis
  • Synthesis
  • mod
  • deoxythymidine
  • deoxyuridine
  • dT
  • dU