SGD Paper 
Kang J, et al. (2012) Engineering of an N-acetylneuraminic acid synthetic pathway in Escherichia coli. Metab Eng 14(6):623-9
Abstract: N-acetylneuraminic acid (NeuAc) has recently drawn much attention owing to its wide applications in many aspects. Besides extraction from natural materials, production of NeuAc was recently focused on enzymatic synthesis and whole-cell biocatalysis. In this study, we designed an artificial NeuAc biosynthetic pathway through intermediate N-acetylglucosamine 6-phosphate in Escherichia coli. In this pathway, N-acetylglucosamine 2-epimerase (slr1975) and glucosamine-6-phosphate acetyltransferase (GNA1) were heterologously introduced into E. coli from Synechocystis sp. PCC6803 and Saccharomyces cerevisiae EBY100, respectively. By derepressing the feedback inhibition of glucosamine-6-phosphate synthase, increasing the accumulation of N-acetylglucosamine and pyruvate, and blocking the catabolism of NeuAc, we were able to produce 1.62 g l?? NeuAc in recombinant E. coli directly from glucose. The NeuAc yield reached 7.85g l?? in fed-batch fermentation. This process offered an efficient fermentative method to produce NeuAc in microorganisms using glucose as carbon source and can be optimized for further improvement.
| Status: Published | Type: Journal Article | PubMed ID: 23018051 |
Topics addressed in this paper
- To find other papers on a gene and topic, click on the colored ball in the appropriate box.
- displays other papers with information about that topic for that gene.
- displays other papers in SGD that are associated with that topic.
The topic is addressed in these papers but does not describe a specific gene or chromosomal feature.
- To go to the Locus page for a gene, click on the gene name.
| Topics | Genes linked to topics |
|---|---|
| GNA1 | |
| Additional Literature |  |
| Strains/Constructs | |
