Engineered phenylalanine hydroxylase coupled with an effective cofactor synthesis and regeneration system for high-yield production of 5-hydroxytryptophan
Abstract 5-Hydroxytryptophan (5-HTP) is widely used as a natural remedy for sleep disorders. In terms of biosafety, bio-derived 5-HTP is preferred over chemically synthesized 5-HTP. However, the low titer of 5-HTP in the reported microbiological methods (
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