Chondroitin sulfate (CS) is an important biomedical product. CS is the basic structural component of the mammalian extracellular matrix and is widely used in many applications in the fields of medicine, veterinary medicine, pharmaceuticals and cosmetics. For CS production, mainly animal sources are used. However, in today's conditions, due to various risks and artificial synthesis, there has been an increase in alternative sources of production methods for CS, instead of using animal resources. In this study as a powerful alternative microbial production of CS has been targeted. By using recombinant E. coli strains to integrate VHb /vgb+ and kfo+ systems, the aim was to obtain high purity CS from reliable biotechnological processes. Plasmid pUC8:15 bearing the vgb gene region, and plasmid pETM6-PACF carrying the kfoA, kfoC and kfoF genes responsible for chondroitin synthesis, were transferred to E. coli bacteria. Microbial CS was obtained by adding sulfate groups to chondroitin acquired after the treatments. The results were confirmed by HPLC and NMR analyses. The product, compared to its counterparts, was found to be an effective drug, potentially with a low molecular weight value.
This study focused on a new plasmid and new recombinant strain developed for the production of microbial chondroitin sulfate a new and limited area of study the strategies we applied for the production of microbial chondroitin sulfate, and the possible contributions of this study to
published research literature. In this study, pETM6-PACF, which carries the genes responsible for capsular chondroitin synthesis [kfA, kfoC, kfoF] was used as the basic plasmid. The Vitreoscilla hemoglobin gene region was transformed into this basic plasmid and the common
expression of both gene groups was added to research literature for the first time. This plasmid was transferred to non-pathogenic E. coli (C2987) to produce a completely new chondroitin source specific to this study. Following the transformation by chondroitin synthesis, and the subsequent
microbial production of chondroitin by the application of purification protocols, microbial chondroitin sulfate was produced in sulfate form. Consequently, in comparison to published literature, a product with a low molecular weight value of 269 Daltons was developed. This product, which has
significant potential drug potency, can be used in many different areas as a novel and unique biomedical product.
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