Fragment Hit Discovery and Binding Site Characterization by Indirect Affinity Capillary Electrophoresis: Application to Factor XIIa.
Anal Chem
; 93(44): 14802-14809, 2021 11 09.
Article
en En
| MEDLINE
| ID: mdl-34694784
ABSTRACT
Fragment-based lead discovery is a usual strategy in drug discovery to identify innovative lead compounds. The success of this approach strongly relies on the capacity to detect weak binders and characterize their binding site. NMR and X-ray crystallography are the conventional technologies used to tackle this challenge. However, their large protein consumption and the cost of equipment reduce their accessibility. Here, an affinity capillary electrophoresis methodology was developed that enables the detection of mM binders, the determination of dissociation constants, and the characterization of the fragment binding site. On the basis of multiple equilibrium theory, dissociation constants in the µM-mM range were determined, and a new methodology is proposed to establish graphically if two fragments bind the same protein pocket. The applicability of this methodology was demonstrated experimentally on coagulation factor XIIa by evaluating pairs of fragments with expected behavior. This study reinforces the significance of using affinity capillary electrophoresis to gather valuable information for medicinal chemistry projects.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Factor XIIa
/
Descubrimiento de Drogas
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Anal Chem
Año:
2021
Tipo del documento:
Article
País de afiliación:
Bélgica