Cloning and characterization of a novel gene that encodes (S)-beta-bisabolene synthase from ginger, Zingiber officinale.
Ginger, Zingiber officinale Roscoe, contains a fragrant oil mainly composed of sesquiterpenes and monoterpenes. We isolated a cDNA that codes for a sesquiterpene synthase from young rhizomes of ginger, Z. officinale Roscoe, Japanese cultivar "Kintoki". The cDNA, designated ZoTps1, potentially encoded a protein that comprised 550 amino acid residues and exhibited 49-53% identity with those of the sesquiterpene synthases already isolated from the genus Zingiber. Recombinant Escherichia coli cells, in which ZoTps1 was coexpressed along with genes for D-mevalonate utilization, resulted in the production of a sesquiterpene (S)-beta-bisabolene exclusively with a D-mevalonolactone supplement. This result indicated that ZoTps1 was the (S)-beta-bisabolene synthase gene in ginger. ZoTPS1 was suggested to catalyze (S)-beta-bisabolene formation with the conversion of farnesyl diphosphate to nerolidyl diphosphate followed by the cyclization between position 1 and 6 carbons. The ZoTps1 transcript was detected in young rhizomes, but not in leaves, roots and mature rhizomes of the ginger "Kintoki".
Central Laboratories for Frontier Technology, Kirin Holdings Co. Ltd., i-BIRD, Nonoichi, Ishikawa, Japan.
Masaki
M
Fujisawa
Hisashi
H
Harada
Hiromichi
H
Kenmoku
Satoru
S
Mizutani
Norihiko
N
Misawa
D019883:Alkyl and Aryl Transferases / Q000737:chemistry / Q000235:genetics*; D000595:Amino Acid Sequence; D001483:Base Sequence; D003001:Cloning, Molecular; D017931:DNA Primers; D008401:Gas Chromatography-Mass Spectrometry; D015971:Gene Expression Regulation, Enzymologic; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D020939:Zingiber officinale / Q000235:genetics*; D008969:Molecular Sequence Data; D000081222:Monocyclic Sesquiterpenes; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D017386:Sequence Homology, Amino Acid; D012717:Sesquiterpenes / Q000378:metabolism*
D017931:DNA Primers; D000081222:Monocyclic Sesquiterpenes; D012717:Sesquiterpenes; D019883:Alkyl and Aryl Transferases; C531191:beta-bisabolene