Interaction

curated

Interaction Scheme

Molecule

Untitled
1,6-Hexandiammonium

Host

Cb7
CB7

Indicator

L phenylalanine
L-Phe

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 2.10⋅109 ± 4.00⋅108 M-1
Kd =
logKa = 9.32 ± 0.08
T 25.0 °C ≈ 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -53.21 ± 0.48 -12.72 ± 0.11
ΔH = -32.8 ± 0.7 -7.84 ± 0.17
-TΔS = -20.4 ± 0.8 -4.88 ± 0.19
J mol-1 K-1 cal mol-1 K-1
ΔS = 68.4 ± 2.7 16.4 ± 0.6
These are the specifications of the determination of the experimental results.
Detection Method: Competitive
Assay Type: Competitive Binding Assay
Technique: Isothermal Titration Calorimetry
Instrument: MicroCal VP-ITC
VCell = 1400.0 𝜇L
VSyringe = 350.0 𝜇L
Molecule: syringe
Partner: cell
Indicator: cell
Detailed information about the solvation.
Solvent System Single Solvent
Solvent water
Please find here information about the dataset this interaction is part of.
Citation:

M. V. Rekharsky, T. Mori, C. Yang, Y. H. Ko, N. Selvapalam, H. Kim, D. Sobransingh, A. E. Kaifer, S. Liu, L. Isaacs, W. Chen, S. Moghaddam, M. K. Gilson, K. Kim, Y. Inoue, SupraBank 2025, A synthetic host-guest system achieves avidin-biotin affinity by overcoming enthalpy-entropy compensation (dataset). https://doi.org/10.34804/supra.20210928129

Link: https://doi.org/10.34804/supra.20210928129
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Please find here information about the scholarly article describing the results derived from that data.
Citation:

M. V. Rekharsky, T. Mori, C. Yang, Y. H. Ko, N. Selvapalam, H. Kim, D. Sobransingh, A. E. Kaifer, S. Liu, L. Isaacs, et al., Proceedings of the National Academy of Sciences 2007, 104, 20737–20742.

Link: https://doi.org/10.1073/pnas.0706407105
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Binding Isotherm Simulations

The plot depicts the binding isotherm simulation of a 1:1 interaction of 1,6-Hexandiammonium (9.523809523809524e-09 M) and CB7 (0 — 1.9047619047619048e-08 M).