Localized and regulated peptide pigment formation inside liquid droplets through confined enzymatic oxidation

文献情報

出版日 2023-11-13

DOI 10.1039/D3CC04231F

インパクトファクター 6.222

著者

Salma Kassem, Deborah Sementa, Tong Wang, Shadman Khandaker, Rinat R. Abzalimov

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要旨

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.

掲載誌

Chemical Communications

CiteScore: 8.6

自己引用率: 4.7%

年間論文数: 2458

ChemComm publishes urgent research which is of outstanding significance and interest to experts in the field, while also appealing to the journal’s broad chemistry readership. Our communication format is ideally suited to short, urgent studies that are of such importance that they require accelerated publication. Our scope covers all topics in chemistry, and research at the interface of chemistry and other disciplines (such as materials science, nanoscience, physics, engineering and biology) where there is a significant novelty in the chemistry aspects. Major topic areas covered include: Analytical Chemistry Catalysis Chemical Biology and medicinal chemistry Computational Chemistry and Machine Learning Energy and sustainable chemistry Environmental Chemistry Green Chemistry Inorganic Chemistry Materials Chemistry Nanoscience Organic Chemistry Physical Chemistry Polymer Chemistry Supramolecular Chemistry

Localized and regulated peptide pigment formation inside liquid droplets through confined enzymatic oxidation

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