The carotenoid astaxanthin forms novel metal ion complexes with Ca2+, Zn2+, and Fe2+. MS and NMR measurements indicate that the two oxygen atoms on the terminal cyclohexene ring of astaxanthin chelate ...

β-Ketoacyl–acyl carrier protein (β-Ketoacyl-ACP) synthase (KAS) III catalyzes the first step in fatty acid biosynthesis, involving a Claisen condensation of the acetyl-CoA starter unit with the first ...