Parameter

ΔG°37 (kcal/mol)

Flush Coaxial Stack Stack Use helical stack parameter
Mismatch-Mediated Coaxial Stack Mismatch stack, continuous backbone Use terminal mismatch parameter
Mismatch stack, backbone not continuous

–2.1

"Mismatch" is potentially a Watson-Crick pair –0.4
"Mismatch is potentially a GU pair –0.2