The PACT domain, a conserved centrosomal targeting motif in the coiled-coil proteins AKAP450 and pericentrin
AUTOR(ES)
Gillingham, Alison K.
FONTE
Oxford University Press
RESUMO
AKAP450 (also known as AKAP350, CG-NAP or Hyperion) and pericentrin are large coiled-coil proteins found in mammalian centrosomes that serve to recruit structural and regulatory components including dynein and protein kinase A. We find that these proteins share a well conserved 90 amino acid domain near their C-termini that is also found in coiled-coil proteins of unknown function from Drosophila and fission yeast. Fusion of the C-terminal region from either protein to a reporter protein confers a centrosomal localization, and overexpression of the domain from AKAP450 displaces endogenous pericentrin, suggesting recruitment to a shared site. When isolated from transfected cells the C-terminal domain of AKAP450 was associated with calmodulin, suggesting that this protein could contribute to centrosome assembly.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1083777Documentos Relacionados
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