Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.7/59
Título: Multiple domain insertions and losses in the evolution of the Rab prenylation complex
Autor: Rasteiro, R.
Pereira Leal, J.B.
Palavras-chave: Protein Prenylation
Protein Structure, Tertiary
rab GTP-Binding Proteins/genetics
Gene Duplication
Evolution, Molecular
Alkyl and Aryl Transferases/genetics
Data: Ago-2007
Citação: Rasteiro, R., Pereira-Leal, J.B. (2007). "Multiple domain insertions and losses in the evolution of the Rab prenylation complex". BMC Evolutionary Biology. 7:140
Resumo: BACKGROUND: Rab proteins are regulators of vesicular trafficking, requiring a lipid modification for proper function, prenylation of C-terminal cysteines. This is catalysed by a complex of a catalytic heterodimer (Rab Geranylgeranyl Transferase - RabGGTase) and an accessory protein (Rab Escort Protein. REP). Components of this complex display domain insertions relative to paralogous proteins. The function of these inserted domains is unclear. RESULTS: We profiled the domain architecture of the components of the Rab prenylation complex in evolution. We identified the orthologues of the components of the Rab prenylation machinery in 43 organisms, representing the crown eukaryotic groups. We characterize in detail the domain structure of all these components and the phylogenetic relationships between the individual domains. CONCLUSION: We found different domain insertions in different taxa, in alpha-subunits of RGGTase and REP. Our results suggest that there were multiple insertions, expansions and contractions in the evolution of this prenylation complex
URI: http://hdl.handle.net/10400.7/59
ISSN: 1471-2148
Aparece nas colecções:CG - Artigos

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