[ASAP] De Novo Design of Miniature and Efficient Metallo-Ketoreductases

AI Insight

This study reports the de novo computational design of miniature metalloenzymes capable of performing ketoreduction reactions, incorporating metal cofactors into small, non-natural protein scaffolds. The designed proteins achieved catalytic activity comparable to or exceeding that of naturally occurring ketoreductases despite their significantly reduced size. The work demonstrates that functional active sites with precise geometric coordination of metal ions can be engineered from scratch without relying on existing enzyme templates.

Why it matters

Miniature, efficiently designed metalloenzymes could serve as cost-effective and tunable catalysts for pharmaceutical synthesis, particularly in the stereoselective reduction of ketones to chiral alcohols, which are key building blocks in drug manufacturing. This approach also advances the broader field of protein design by validating computational strategies for embedding inorganic chemistry into novel biological scaffolds.