Interaction Scheme

Molecule

Untitled
Spermine (fully protonated form)

c = 0.0 — 11.0 µM

Host

Sp5a %282%29
sP5A

c = 3.1 µM

Indicator

Mdap squared
MDAP

c = 3.3 µM

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 7.90⋅105 ± 5.00⋅104 M-1
Kd =
logKa = 5.9 ± 0.03
T 25.0 °C 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -33.66 ± 0.16 -8.04 ± 0.04
These are the specifications of the determination of the experimental results.
Detection Method: Competitive
Assay Type: Competitive Binding Assay
Technique: Fluorescence
𝛌ex = 336.0 nm
𝛌em = 423.0 nm
Detailed information about the solvation.
Solvent System Buffer System 10X PBS - pH 7.45
Solvents water
Additives Sodium hydroxide 1370.0 mM
Disodium hydrog... 100.0 mM
potassium chloride 27.0 mM
Potassium dihyd... 18.0 mM
Source of Concentration real
Total concentration 1515.0 mM
pH 7.45
Please find here information about the dataset this interaction is part of.
Citation:

L. Grimm, SupraBank 2024, Pillar[n]arene-based fluorescence turn-on chemosensors for the detection of spermine, spermidine, and cadaverine in saline media and biofluids (dataset). https://doi.org/10.34804/supra.20240313515

Link: https://doi.org/10.34804/supra.20240313515
Export: BibTex | RIS | EndNote
Please find here information about the scholarly article describing the results derived from that data.

Binding Isotherm Simulations


The plot depicts the binding isotherm simulation of a 1:1 interaction of Spermine (fully protonated form) (2.5316455696202533e-05 M) and sP5A (0 — 5.0632911392405066e-05 M).