Published February 16, 1982
| Version v1
Journal article
Thallium-205 nuclear magnetic resonance study of the thallium(I)-gramicidin A association in trifluoroethanol
Description
Association of the thallous ion with gramicidin in 2,2,2-trifluoroethanol has been investigated by thallium-205 NMR spectroscopy. The data obtained suggest that the gramicidin dimer has two strong binding sites and one or more weak binding sites. Association constants for the strong binding sites were found to have the same value. From the temperature dependence of the strong binding site association constants, values for the association enthalpy and entropy of -2.13 +/- 0.12 kcal/mol and +5.45 +/- 0.04 eu, respectively, were obtained
Additional details
Publishing Information
- Journal Title
- Biochemistry
- Journal Volume
- 21
- Journal Issue
- 4
- Series
- Biochemistry.
- Journal Page Range
- 645-651
- ISSN
- 0006-2960
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 13695880
- Subject category
- S62: RADIOLOGY AND NUCLEAR MEDICINE;
- Descriptors DEI
- ALCOHOLS; ANTIBIOTICS; CHEMICAL BONDS; ENTHALPY; ENTROPY; NUCLEAR MAGNETIC RESONANCE; ORGANIC FLUORINE COMPOUNDS; POLYPEPTIDES; STRUCTURAL CHEMICAL ANALYSIS; TEMPERATURE DEPENDENCE; THALLIUM IONS; THALLIUM 205
- Descriptors DEC
- ATOMIC IONS; CHARGED PARTICLES; DRUGS; HEAVY NUCLEI; HYDROXY COMPOUNDS; IONS; ISOTOPES; MAGNETIC RESONANCE; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; PEPTIDES; PHYSICAL PROPERTIES; PROTEINS; RESONANCE; STABLE ISOTOPES; THALLIUM ISOTOPES; THERMODYNAMIC PROPERTIES