Pseudothymidine

• CAT Number: I020477
• CAS Number: 65358-15-8
• Molecular Formula: C₁₀H₁₄N₂O₅
• Molecular Weight: 242.23
• Purity: ≥95%

Pseudothymidine is a C-nucleoside analog of thymidine.Pseudothymidine is a C-nucleoside analog of thymidine[1]. The calculated ΔΔG°50/mod is -0.5 kcal/mol, with a ΔTm/mod of 0.82°C. For the duplexes containing nine dA-T/ψT pairs, the ΔTm/mod is -0.9°C and a ΔΔG°50/mod is +1.1 kcal/mol. The modification of the duplex containing 12 consecutive dA-T/ψT base pairs produces a ΔTm/mod of -0.9°C and a ΔΔG°50/mod of +1.2 kcal/mol[2].

Reference

[1]. S Lutz, et al. An in vitro screening technique for DNA polymerases that can incorporate modified nucleotides. Pseudo-thymidine as a substrate for thermostable polymerases. Nucleic Acids Res. 1999 Jul 1; 27(13): 2792-2798.[2]. Havemann SA, et al. Incorporation of multiple sequential pseudothymidines by DNA polymerases and their impact on DNA duplex structure. Nucleosides Nucleotides Nucleic Acids. 2008 Mar;27(3):261-78.