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Table 1 Apparent thermodynamic parameters for dissociation of CTD dimers, as determined by ITC dilution experiments at 30°;C in the presence of stapled peptide NYAD-203 with concentration, CI

From: Antiviral activity of α-helical stapled peptides designed from the HIV-1 capsid dimerization domain

CI/μM

Kdiss/μM

ΔHdiss/kcal mole-1

200 μM CTD (fm)*

0

15.3 (±3.6)

10.7 (±0.7)

18%

50

31.2 (±6.6)

9.1 (±0.3)

24%

200

33.2 (±3.9)

10.8 (±0.2)

25%

350

40.5 (±6.2)

10.9 (±0.2)

27%

  1. * fm is the estimated fraction of CTD occurring as monomers in solution under these conditions, calculated from the monomer-dimer equilibrium expressions.