Phytoene desaturase (lycopene-forming) Phytoene desaturase (lycopene-forming) Phytoene desaturase (lycopene-forming) (CrtI, "four-step phytoene desaturase") (, "15-cis-phytoene:acceptor oxidoreductase (lycopene-forming)") are enzymes found in archaea, bacteria and fungi that are involved in carotenoid biosynthesis. They catalyze the conversion of colorless 15-"cis"-phytoene into a bright red lycopene in a biochemical pathway called the poly-trans pathway. The same process in plants and cyanobacteria utilizes four separate enzymes in a poly-cis pathway. Bacterial phytoene desaturases were shown to require FAD as a cofactor for their function. During the chemical reaction in total four additional double bonds are introduced into phytoene: In 2000 it was discovered that the gene insertion
Blue Is the Colour Blue Is the Colour Blue Is the Colour is the fifth studio album from English band The Beautiful South, released in October 1996 through Go! Discs and in America through Ark 21 Records. Following the two singles "Pretenders to the Throne" and "Dream a Little Dream", which never featured on any album until the release of the second greatest hits "Solid Bronze" in 2001, it was named after a pub in Sheffield. The album continued the melancholic tone of its predecessor "Miaow", and is generally considered to be the band's darkest effort, reflecting Heaton's life at the time. This comes