Capsanthin Production in Escherichia coli by Overexpression of Capsanthin/Capsorubin Synthase from Capsicum annuum. 2021

Maiko Furubayashi, and Akiko Kubo, and Miho Takemura, and Yuko Otani, and Takashi Maoka, and Yoshinobu Terada, and Katsuro Yaoi, and Kohji Ohdan, and Norihiko Misawa, and Yasuo Mitani
Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Hokkaido 062-8517, Japan.

Capsanthin, a characteristic red carotenoid found in the fruits of red pepper (Capsicum annuum), is widely consumed as a food and a functional coloring additive. An enzyme catalyzing capsanthin synthesis was identified as capsanthin/capsorubin synthase (CCS) in the 1990s, but no microbial production of capsanthin has been reported. We report here the first successful attempt to biosynthesize capsanthin in Escherichia coli by carotenoid-pathway engineering. Our initial attempt to coexpress eight enzyme genes required for capsanthin biosynthesis did not detect the desired product. The dual activity of CCS as a lycopene β-cyclase as well as a capsanthin/capsorubin synthase likely complicated the task. We demonstrated that a particularly high expression level of the CCS gene and the minimization of byproducts by regulating the seven upstream carotenogenic genes were crucial for capsanthin formation in E. coli. Our results provide a platform for further study of CCS activity and capsanthin production in microorganisms.

UI MeSH Term Description Entries
D010940 Plant Proteins Proteins found in plants (flowers, herbs, shrubs, trees, etc.). The concept does not include proteins found in vegetables for which PLANT PROTEINS, DIETARY is available. Plant Protein,Protein, Plant,Proteins, Plant
D002212 Capsicum A plant genus of the family SOLANACEAE. The hot peppers yield CAPSAICIN, which activates VANILLOID RECEPTORS. Several varieties have sweet or pungent edible fruits that are used as vegetables when fresh and spices when the pods are dried. Bell Pepper,Cayenne Pepper,Chili Pepper,Chilli Pepper,Green Pepper,Jalapeno Pepper,Paprika,Pimiento,Red Pepper,Capsicum annuum,Cayenne,Chile Pepper,Hot Pepper,Sweet Pepper,Bell Peppers,Cayenne Peppers,Chile Peppers,Chili Peppers,Chilli Peppers,Green Peppers,Hot Peppers,Jalapeno Peppers,Pepper, Bell,Pepper, Cayenne,Pepper, Chile,Pepper, Chili,Pepper, Chilli,Pepper, Green,Pepper, Hot,Pepper, Jalapeno,Pepper, Red,Pepper, Sweet,Peppers, Bell,Peppers, Cayenne,Peppers, Chile,Peppers, Chili,Peppers, Chilli,Peppers, Green,Peppers, Hot,Peppers, Jalapeno,Peppers, Red,Peppers, Sweet,Red Peppers,Sweet Peppers
D004926 Escherichia coli A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc. Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D024341 Xanthophylls Oxygenated forms of carotenoids. They are usually derived from alpha and beta carotene. Xanthophyll Carotenoids,Carotenoids, Xanthophyll

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