title: Characterization of dehydrodolichyl diphosphate synthase of Arabidopsis thaliana, a key enzyme in dolichol biosynthesis.
abstract: The enzyme dehydrodolichyl diphosphate (dedol-PP) synthase is a cis-prenyltransferase that catalyzes the synthesis of dedol-PP, the long-chain polyprenyl diphosphate used as a precursor for the synthesis of dolichyl phosphate. Here we report the cloning and characterization of a cDNA from Arabidopsis thaliana encoding dedol-PP synthase. The identity of the cloned enzyme was confirmed by functional complementation of a yeast mutant strain defective in dedol-PP synthase activity together with the detection of high levels of dedol-PP synthase activity in the transformed yeast mutant. The A. thaliana dedol-PP synthase mRNA was detected at high levels in roots but was hardly detected in flowers, leaves, stems and in A. thaliana suspension-cultured cells.
authors.affiliation: Departament de Bioquímica i Biologia Molecular, Facultat de Farmàcia, Universitat de Barcelona, Av. Diagonal 643, 08028, Barcelona, Spain.
authors.forename: N
authors.initials: N
authors.lastname: Cunillera
authors.forename: M
authors.initials: M
authors.lastname: Arró
authors.forename: O
authors.initials: O
authors.lastname: Forés
authors.forename: D
authors.initials: D
authors.lastname: Manzano
authors.forename: A
authors.initials: A
authors.lastname: Ferrer
mesh_terms: D019883:Alkyl and Aryl Transferases / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D000595:Amino Acid Sequence; D017360:Arabidopsis / Q000201:enzymology*; D001483:Base Sequence; D003001:Cloning, Molecular; D017931:DNA Primers; D018076:DNA, Complementary; D004286:Dolichols / Q000096:biosynthesis*; D008969:Molecular Sequence Data; D017386:Sequence Homology, Amino Acid
chemical_list: D017931:DNA Primers; D018076:DNA, Complementary; D004286:Dolichols; D019883:Alkyl and Aryl Transferases; C051389:dehydrodolichyl diphosphate synthetase