Allosteric inhibition of the protein-protein interaction between the leukemia-associated proteins Runx1 and CBFbeta.
Chem Biol
; 14(10): 1186-97, 2007 Oct.
Article
en En
| MEDLINE
| ID: mdl-17961830
ABSTRACT
The two subunits of core binding factor (Runx1 and CBFbeta) play critical roles in hematopoiesis and are frequent targets of chromosomal translocations found in leukemia. The binding of the CBFbeta-smooth muscle myosin heavy chain (SMMHC) fusion protein to Runx1 is essential for leukemogenesis, making this a viable target for treatment. We have developed inhibitors with low micromolar affinity which effectively block binding of Runx1 to CBFbeta. NMR-based docking shows that these compounds bind to CBFbeta at a site displaced from the binding interface for Runx1, that is, these compounds function as allosteric inhibitors of this protein-protein interaction, a potentially generalizable approach. Treatment of the human leukemia cell line ME-1 with these compounds shows decreased proliferation, indicating these are good candidates for further development.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Leucemia
/
Proliferación Celular
/
Inhibidores Enzimáticos
/
Sitio Alostérico
/
Subunidad alfa 2 del Factor de Unión al Sitio Principal
/
Subunidad beta del Factor de Unión al Sitio Principal
Tipo de estudio:
Risk_factors_studies
Límite:
Humans
Idioma:
En
Revista:
Chem Biol
Asunto de la revista:
BIOLOGIA
/
BIOQUIMICA
/
QUIMICA
Año:
2007
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA