title: Isolation and characterisation of a sucrose: sucrose 1-fructosyltransferase gene from perennial ryegrass (Lolium perenne).
abstract: A sucrose: sucrose 1-fructosyltransferase (1-SST) gene and cDNA (Lp 1-SST) from perennial ryegrass (Lolium perenne) were isolated. The Lp 1-SST gene was fully sequenced and shown to contain three exons and two introns. Nucleotide sequence analysis of the 4824 bp Lp 1-SST genomic sequence revealed 1618 bp of 5' UTR and an open reading frame of 1962 bp encoding a protein of 653 amino acids. Lp 1-SST is 95% identical to the tall fescue 1-SST and contains plant fructosyltransferase functional domains. Lp 1-SST corresponds to a single copy gene in perennial ryegrass, and is expressed in young leaf bases and mature leaf sheaths. The recombinant Lp 1-SST protein from corresponding cDNA expression in Pichia pastoris showed 1-SST activity.
authors.affiliation: Plant Biotechnology Centre, Agriculture Victoria, Department of Primary Industries, CRC for Molecular Plant Breeding, La Trobe University, Bundoora, Victoria 3086, Australia.
authors.forename: Jaye
authors.initials: J
authors.lastname: Chalmers
authors.forename: Xenie
authors.initials: X
authors.lastname: Johnson
authors.forename: Angela
authors.initials: A
authors.lastname: Lidgett
authors.forename: German
authors.initials: G
authors.lastname: Spangenberg
mesh_terms: D000595:Amino Acid Sequence; D003001:Cloning, Molecular; D018076:DNA, Complementary / Q000737:chemistry / Q000235:genetics; D015971:Gene Expression Regulation, Enzymologic; D018506:Gene Expression Regulation, Plant; D006602:Hexosyltransferases / Q000235:genetics* / Q000302:isolation & purification / Q000378:metabolism; D008129:Lolium / Q000201:enzymology* / Q000235:genetics; D008969:Molecular Sequence Data; D010802:Phylogeny; D018515:Plant Leaves / Q000235:genetics / Q000378:metabolism; D010940:Plant Proteins / Q000235:genetics* / Q000378:metabolism; D011993:Recombinant Fusion Proteins / Q000235:genetics / Q000378:metabolism; D017422:Sequence Analysis, DNA; D001426:Bacterial Proteins
chemical_list: D018076:DNA, Complementary; D006602:Hexosyltransferases; D010940:Plant Proteins; D011993:Recombinant Fusion Proteins; C021451:inulosucrase; D001426:Bacterial Proteins