title: Molecular cloning and structural analysis of cDNAs that encode 3 small GTP-binding proteins from sugar beet.
abstract: Isolation of homologous ras-related genes from sugar beet has never been reported. Screening cDNA library from Beta vulgaris L. Hilma resulted in the isolation of 3 ras-homologous clones. Two of these genes (rab1Bv and rab2Bv) belong to the Rab/Ypt group. The deduced polypeptidic sequences from them show strong homologies to Ara3 (93% with Rab1Bv) of Arabidopsis thaliana and Rgp2 (97% with Rab2Bv) of Oryza sativa. The third gene (rho1Bv) belongs to the Rho family. The homology of Rho1Bv protein with Rho1Ps from Pisum is very high (98%). Rho1Bv is the second representative plant Rho protein described in the literature. The homologies of all these 3 small GTP-binding proteins indicate that these proteins are conserved in plant families like Chenopodiaceae, Brassicaceae, Fabaceae and Poaceae and could control important transductional pathways conserved along the processes of evolution.
authors.affiliation: INSERM U. 124, IRCL, Lille, France.
authors.forename: E
authors.initials: E
authors.lastname: Dallery
authors.forename: S
authors.initials: S
authors.lastname: Quief
authors.forename: K E
authors.initials: KE
authors.lastname: Ben Jilany
authors.forename: J P
authors.initials: JP
authors.lastname: Kerckaert
authors.forename: D
authors.initials: D
authors.lastname: Hagège
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D003001:Cloning, Molecular; D018076:DNA, Complementary / Q000737:chemistry* / Q000235:genetics*; D019204:GTP-Binding Proteins / Q000235:genetics*; D008969:Molecular Sequence Data; D010944:Plants / Q000235:genetics*
chemical_list: D018076:DNA, Complementary; D019204:GTP-Binding Proteins