| abstract |
PCT No. PCT/JP95/01640 Sec. 371 Date Apr. 23, 1996 Sec. 102(e) Date Apr. 23, 1996 PCT Filed Aug. 18, 1995 PCT Pub. No. WO96/06172 PCT Pub. Date Feb. 29, 1996DNA sequences are described that encode genes for synthesizing ketocarotenoids such as astaxanthin. The DNA sequences, microorganisms containing them and encoded polypeptides are described. Also described are methods to obtain related sequences and to make host cells that contain such sequences. These genes and methods are useful to impart red coloration during culture of fish and crustaceans, as coloring in food, and as antioxidants. |