Localized and regulated peptide pigment formation inside liquid droplets through confined enzymatic oxidation
文献信息
Salma Kassem, Deborah Sementa, Tong Wang, Shadman Khandaker, Rinat R. Abzalimov
Melanin pigments are found in most life forms, where they are responsible for coloration and ultraviolet (UV) light protection. Natural melanin is a poorly soluble and complex biosynthesis product produced through confined and templated enzymatic oxidation of tyrosine. It has been challenging to create water-soluble synthetic mimics. This study demonstrates the enzymatic synthesis of oxidized phenols confined inside liquid droplets. We use an amphiphilic, bifunctional peptide, DYFR9, that combines a tyrosine tripeptide previously shown to undergo enzymatic oxidation to form peptide pigments with broad absorbance, and polyarginine to facilitate complex coacervation in the presence of ATP. When ATP, DYFR9 are mixed and exposed to tyrosinase, pigmented liquid droplets result, while no appreciable oxidation is observed in the bulk.
期刊推荐

Russian Journal of General Chemistry

Saudi Pharmaceutical Journal

Journal of Natural Medicines

Acta Materialia

Russian Journal of Coordination Chemistry

Russian Chemical Bulletin

Nature Medicine

Russian Journal of Bioorganic Chemistry

Chemistry Education Research and Practice

Russian Journal of Organic Chemistry
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Chemical Communications

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