Yotiao protein, a ligand for the NMDA receptor, binds and targets cAMP-dependent protein kinase II(1).
FEBS Lett
; 464(3): 174-8, 1999 Dec 31.
Article
en En
| MEDLINE
| ID: mdl-10618500
A yeast two-hybrid screen revealed that regulatory subunits (RII) of PKAII bind the Yotiao protein. Yotiao interacts with the NR1 subunit of the NMDA receptor. A purified C-terminal fragment of Yotiao binds PKAII, via an RII binding site constituted by amino acid residues 1452-1469, with a dissociation constant (K(d)) between 50 and 90 nM in vitro. A stable complex composed of Yotiao, RII and NR1 was immunoprecipitated from whole rat brain extracts. Immunostaining analysis disclosed that Yotiao, RIIbeta and NR1 colocalize in striatal and cerebellar neurons. Co-assembly of Yotiao/PKAII complexes with NR1 subunits may promote cAMP-dependent modulation of NMDA receptor activity at synapses, thereby influencing brain development and synaptic plasticity.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Proteínas Portadoras
/
Receptores de N-Metil-D-Aspartato
/
Proteínas Quinasas Dependientes de AMP Cíclico
/
Proteínas del Citoesqueleto
/
Proteínas Adaptadoras Transductoras de Señales
Límite:
Animals
Idioma:
En
Revista:
FEBS Lett
Año:
1999
Tipo del documento:
Article
País de afiliación:
Italia
Pais de publicación:
Reino Unido