Enzymes for Triterpene Biosynthesis by the Microalga Botryococcus braunii
نویسندگان
چکیده
منابع مشابه
Identification of unique mechanisms for triterpene biosynthesis in Botryococcus braunii.
Botryococcene biosynthesis is thought to resemble that of squalene, a metabolite essential for sterol metabolism in all eukaryotes. Squalene arises from an initial condensation of two molecules of farnesyl diphosphate (FPP) to form presqualene diphosphate (PSPP), which then undergoes a reductive rearrangement to form squalene. In principle, botryococcene could arise from an alternative rearrang...
متن کاملDraft Nuclear Genome Sequence of the Liquid Hydrocarbon–Accumulating Green Microalga Botryococcus braunii Race B (Showa)
Botryococcus braunii has long been known as a prodigious producer of liquid hydrocarbon oils that can be converted into combustion engine fuels. This draft genome for the B race of B. braunii will allow researchers to unravel important hydrocarbon biosynthetic pathways and identify possible regulatory networks controlling this unusual metabolism.
متن کاملMolecular characterization of squalene synthase from the green microalga Botryococcus braunii, race B.
The green microalga Botryococcus braunii produces large amounts of liquid hydrocarbons and is classified into three races, depending on the type of the hydrocarbon produced. The B race produces two types of triterpenoid hydrocarbons, squalene and botryococcene, both of which are putative condensation products of farnesyl diphosphate. In an attempt to better understand the regulation involved in...
متن کاملOptimization of light for growth, photosynthesis, and hydrocarbon production by the colonial microalga Botryococcus braunii BOT-22.
Optimization of the light conditions for biofuel production by the microalga Botryococcus braunii BOT-22 (race B) was performed using monochromatic red light. The lipid and sugar contents were approximately 40% and 20-30% of the cell dry weight, respectively, and about half of the lipids were liquid hydrocarbons. The half-saturation intensities for the production rate of lipids, hydrocarbons, a...
متن کاملTetraterpene Synthase Substrate and Product Specificity in the Green Microalga Botryococcus braunii Race L.
Recently, the biosynthetic pathway for lycopadiene, a C40 tetraterpenoid hydrocarbon, was deciphered from the L race of Botryococcus braunii, an alga that produces hydrocarbon oils capable of being converted into combustible fuels. The lycopadiene pathway is initiated by the squalene synthase (SS)-like enzyme lycopaoctaene synthase (LOS), which catalyzes the head-to-head condensation of two C20...
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ژورنال
عنوان ژورنال: KAGAKU TO SEIBUTSU
سال: 2012
ISSN: 0453-073X,1883-6852
DOI: 10.1271/kagakutoseibutsu.50.93