Interaction Scheme

Molecule

N1 %283 aminopropyl%29butane 1 4 diamine trihydrochloride
Spermidine trihydrochloride

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 = 1.20⋅108 ± 1.00⋅107 M-1
Kd =
logKa = 8.08 ± 0.04
T 25.0 °C 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -46.12 ± 0.21 -11.02 ± 0.05
These are the specifications of the determination of the experimental results.
Detection Method: Competitive
Assay Type: Competitive Binding Assay
Technique: Fluorescence
𝛌ex = 335.0 nm
𝛌em = 423.0 nm
Detailed information about the solvation.
Solvent System Buffer System 50 mM phosphate pH-7
Solvents water
Source of Concentration
Total concentration 50.0 mM
pH 7.0
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 Spermidine trihydrochloride (1.6666666666666668e-07 M) and sP5A (0 — 3.3333333333333335e-07 M).