title: Molecular characterization of a cDNA encoding a novel small GTP-binding protein from Arabidopsis thaliana.
abstract: A full-length cDNA clone encoding a novel Rab protein AtRab alpha of the monomeric small GTP-binding protein family has been isolated from Arabidopsis thaliana. AtRab alpha has 210 amino acids with a calculated molecular mass of 23.3 kDa. The highest homology was found to Rab1x and Rab1y from Lotus japonicus. Southern blot analysis of genomic DNA indicated that AtRab alpha was encoded by a single copy gene. Northern blot analysis showed that expression of the AtRab alpha mRNA was rich in stems and roots, but poor in leaves and flowers, which is different from the expression pattern of other Arabidopsis Rab genes.
authors.affiliation: Biological Resources Division, Japan International Research Center for Agricultural Sciences, Ministry of Agriculture, Forestry and Fisheries, Tsukuba, Ibaraki.
authors.forename: K
authors.initials: K
authors.lastname: Mikami
authors.forename: K
authors.initials: K
authors.lastname: Ichimura
authors.forename: S
authors.initials: S
authors.lastname: Iuch
authors.forename: K
authors.initials: K
authors.lastname: Yamaguchi-Shinozaki
authors.forename: K
authors.initials: K
authors.lastname: Shinozaki
mesh_terms: D000595:Amino Acid Sequence; D017360:Arabidopsis / Q000737:chemistry / Q000235:genetics*; D029681:Arabidopsis Proteins; D001483:Base Sequence; D015152:Blotting, Northern; D015139:Blotting, Southern; D003001:Cloning, Molecular; D017124:Conserved Sequence / Q000235:genetics; D018076:DNA, Complementary / Q000737:chemistry; D019143:Evolution, Molecular; D019204:GTP-Binding Proteins / Q000737:chemistry* / Q000235:genetics*; D018506:Gene Expression Regulation, Plant / Q000235:genetics; D017343:Genes, Plant; D008969:Molecular Sequence Data; D010940:Plant Proteins / Q000737:chemistry* / Q000235:genetics*; D012333:RNA, Messenger / Q000032:analysis / Q000235:genetics; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA; D020691:rab GTP-Binding Proteins
chemical_list: C109474:ATRAB ALPHA protein, Arabidopsis; D029681:Arabidopsis Proteins; D018076:DNA, Complementary; D010940:Plant Proteins; D012333:RNA, Messenger; D019204:GTP-Binding Proteins; D020691:rab GTP-Binding Proteins