| abstract |
To provide a novel carotenoid synthase capable of improving the productivity of carotenoid and use thereof. A carotenoid synthase CrtIBY gene isolated from Aulanthiochytrium encodes a protein containing a phytoene desaturase domain, a phytoene synthase domain, and a lycopene cyclase domain, and geranylgeranylpyrroline A protein that can catalyze a multi-step reaction from the acid to the production of β-carotene with a single enzyme. A method for producing astaxanthin from β-carotene by further introducing a CrtS gene. [Selection] Figure 1 |