Interaction Scheme

Molecule

Rhodamine 123
Rhodamine 123

c = 1.0 µM

Host

Cx4 %28n2 ph cooh%29
Cx4-(N2-Ph-COOH)

c = 0.0 — 8.1 µM

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 1.40⋅107 ± 1.00⋅106 M-1
Kd =
logKa = 7.15 ± 0.03
T 25.0 °C 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -40.79 ± 0.18 -9.75 ± 0.04
These are the specifications of the determination of the experimental results.
Detection Method: Direct
Assay Type: Direct Binding Assay
Technique: Fluorescence
𝛌ex = 500.0 nm
𝛌em = 525.0 nm
Detailed information about the solvation.
Solvent System Buffer System 149.7 mM PBS pH-7.4
Solvents water
Additives sodium chloride 137.0 mM
Disodium hydrog... 6.1 mM
Sodium dihydrog... 3.9 mM
potassium chloride 2.7 mM
Sodium hydroxide
Source of Concentration
Total concentration 149.7 mM
pH 7.4
Please find here information about the dataset this interaction is part of.
Citation:

D. Guo, Z. Zheng, Z. Li, W. Geng, S. Jia, D. Ding, SupraBank 2024, A Noncovalent Fluorescence Turn‐on Strategy for Hypoxia Imaging (dataset). https://doi.org/10.34804/supra.20210928222

Link: https://doi.org/10.34804/supra.20210928222
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Please find here information about the scholarly article describing the results derived from that data.
Citation:

W. C. Geng, S. Jia, Z. Zheng, Z. Li, D. Ding, D. S. Guo, Angew. Chem. Int. Ed. 2019, 58, 2377–2381.

Link: https://doi.org/10.1002/anie.201813397
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Binding Isotherm Simulations


The plot depicts the binding isotherm simulation of a 1:1 interaction of Rhodamine 123 (1.4285714285714286e-06 M) and Cx4-(N2-Ph-COOH) (0 — 2.8571428571428573e-06 M).