pRK404 vector-based plasmid for biosynthesis of zeinoxanthin (additionally including HpIDI) under the direction of the tac promoter in E. coli (HpIDI, crtE, crtB, crtI, MpLCYb, MpLCYe, crtZ, Pag-crtE).
MpLCYb- and MpLCYe-expression plasmid for production of α-carotene (and β-carotene) when coexpressed with a plasmid to biosynthesize lycopene in E. coli.