Abstract

A simple and fast method of preparation of non-natural nicotinamide adenine dinucleotide (NAD) analog nicotinamide cytosine dinucleotide (NCD) was developed. NCD synthetase (NcdS-1) was developed from nicotinic acid mononucleotide adenylyltransferase (NadD) with higher catalytic efficiency towards nicotinamide mononucleotide (NMN) and cytidine triphosphate (CTP). Reaction composition was optimized with inorganic pyrophosphatase (PPase) from E. coli to achieve near quantitative conversion of substrates. A Scalable purification procedure was determined to achieve a fast 4.19 g NCD preparation of 96 % purity.

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