Artículo
Interactions in solution of cobalt(II) and nickel(II) with nicotinamide adenine dinucleotide: A potentiometric and calorimetric study
Fecha de publicación:
03/2002
Editorial:
Springer
Revista:
Journal of Biological Inorganic Chemistry
ISSN:
0949-8257
e-ISSN:
1432-1327
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The equilibrium constants and the thermodynamic parameters enthalpy and entropy of the interaction between Ni(II) and Co(II) with NAD+ in aqueous solution were determined by calorimetry and potentiometry methods (ionic strength adjusted to 0.1 with sodium nitrate at 25 °C). The macrochelation of the systems was also studied. All the data, including the protonation enthalpy data of NAD+ (very similar to the protonation enthalpy of 5′-AMP) suggest a less restrictive model for the NAD+ "folded" conformation without intramolecular stacking between the bases, in agreement both with recent theoretical calculations and with the X-ray structure of trimethylene-bisadeninium or the free acid form of NAD+.
Palabras clave:
Cobalt
,
Nickel
,
Nicotinamide Adenine Dinucleotide Calorimetry
,
Nucleotides
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Colecciones
Articulos(CERELA)
Articulos de CENTRO DE REFERENCIA PARA LACTOBACILOS (I)
Articulos de CENTRO DE REFERENCIA PARA LACTOBACILOS (I)
Citación
Herrero, Luis A.; Cerro-Garrido, Juan Carlos; Apella, Maria Cristina; Terrón-Homar, Angel; Interactions in solution of cobalt(II) and nickel(II) with nicotinamide adenine dinucleotide: A potentiometric and calorimetric study; Springer; Journal of Biological Inorganic Chemistry; 7; 3; 3-2002; 313-317
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