Interaction

curated

Interaction Scheme

Molecule

L phenylalanine
L-Phe

Host

Cb7
CB7

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 1.80⋅106 ± 2.00⋅105 M-1
Kd =
logKa = 6.26 ± 0.05
T 25.0 °C ≈ 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -35.71 ± 0.28 -8.53 ± 0.07
ΔH = -43.4 ± 0.4 -10.37 ± 0.1
-TΔS = 7.7 ± 0.5 1.84 ± 0.12
J mol-1 K-1 cal mol-1 K-1
ΔS = -25.8 ± 1.7 -6.2 ± 0.4
These are the specifications of the determination of the experimental results.
Detection Method: Direct
Assay Type: Direct Binding Assay
Technique: Isothermal Titration Calorimetry
Instrument: MicroCal VP-ITC
VCell = 1400.0 𝜇L
VSyringe = 350.0 𝜇L
Molecule: syringe
Partner: cell
Detailed information about the solvation.
Solvent System Single Solvent
Solvent water
pH 7.0
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 2024, 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 L-Phe (1.1111111111111112e-05 M) and CB7 (0 — 2.2222222222222223e-05 M).