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Metabolic and genetic engineering of...

Lundgren, Benjamin Robert.

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Metabolic and genetic engineering of Escherichia coli for the production of nonulosonic acid sugars.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Metabolic and genetic engineering of Escherichia coli for the production of nonulosonic acid sugars./
Author:	Lundgren, Benjamin Robert.
Description:	182 p.
Notes:	Source: Dissertation Abstracts International, Volume: 71-11, Section: B, page: 6761.
Contained By:	Dissertation Abstracts International71-11B.
Subject:	Biology, Microbiology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3429089
ISBN:	9781124289113

Metabolic and genetic engineering of Escherichia coli for the production of nonulosonic acid sugars.
Lundgren, Benjamin Robert.

Metabolic and genetic engineering of Escherichia coli for the production of nonulosonic acid sugars. - 182 p.

Source: Dissertation Abstracts International, Volume: 71-11, Section: B, page: 6761.

Thesis (Ph.D.)--Syracuse University, 2010.

Microbial fermentation has proven to be a valuable and essential method for producing both high-value low-volume products such as pharmaceuticals and low-value high-volume goods, e.g., fuels and nutraceuticals. Compared to other industrial processes, the scalability, low-cost and green chemistry associated with Escherichia coli-based fermentation has driven it into the forefront of bioprocess engineering. Indeed, this bacterium is a vital recombinant microorganism for accessing not only common bioproducts such as amino acids and sugars, but is a source of more structurally complex, pharmaceutical-precursors, including 6-deoxyerythronolide B and artemisinic acid. Through metabolic and genetic engineering approaches presented herein, we were able to construct E. coli strains that could biosynthesize and produce the non-native, nonulosonic acid sugars, sialic acid and pseudaminic acid. These nine-carbon keto acids perform unique, key cellular functions, making them highly sought after in the medical and biotechnological industries. In addition, with the limited access to the nonulosonates via enzymatic synthesis, advancements in the basic research on the biochemistry and physiology of these sugars remains hindered. To increase the availability of these compounds, fully functional, biosynthetic pathways for sialic and pseudaminic acid were constructed and successfully expressed in E. coli. However, optimal production of either sugar required inimitable modifications to E. coli's amino sugar metabolism for maximizing carbon flow into the desired nonulosonate and obtaining industrial-relevant titers. Known as an industrial workhorse, the E. coli processes developed herein will serve as valuable platforms for accessing nonulosonic sugars and their derivatives.

ISBN: 9781124289113Subjects--Topical Terms:

1017734
Biology, Microbiology.

Metabolic and genetic engineering of Escherichia coli for the production of nonulosonic acid sugars.
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100 1 $a Lundgren, Benjamin Robert. $3 1684198
245 1 0 $a Metabolic and genetic engineering of Escherichia coli for the production of nonulosonic acid sugars.
300 $a 182 p.
500 $a Source: Dissertation Abstracts International, Volume: 71-11, Section: B, page: 6761.
500 $a Adviser: Robert P. Doyle.
502 $a Thesis (Ph.D.)--Syracuse University, 2010.
520 $a Microbial fermentation has proven to be a valuable and essential method for producing both high-value low-volume products such as pharmaceuticals and low-value high-volume goods, e.g., fuels and nutraceuticals. Compared to other industrial processes, the scalability, low-cost and green chemistry associated with Escherichia coli-based fermentation has driven it into the forefront of bioprocess engineering. Indeed, this bacterium is a vital recombinant microorganism for accessing not only common bioproducts such as amino acids and sugars, but is a source of more structurally complex, pharmaceutical-precursors, including 6-deoxyerythronolide B and artemisinic acid. Through metabolic and genetic engineering approaches presented herein, we were able to construct E. coli strains that could biosynthesize and produce the non-native, nonulosonic acid sugars, sialic acid and pseudaminic acid. These nine-carbon keto acids perform unique, key cellular functions, making them highly sought after in the medical and biotechnological industries. In addition, with the limited access to the nonulosonates via enzymatic synthesis, advancements in the basic research on the biochemistry and physiology of these sugars remains hindered. To increase the availability of these compounds, fully functional, biosynthetic pathways for sialic and pseudaminic acid were constructed and successfully expressed in E. coli. However, optimal production of either sugar required inimitable modifications to E. coli's amino sugar metabolism for maximizing carbon flow into the desired nonulosonate and obtaining industrial-relevant titers. Known as an industrial workhorse, the E. coli processes developed herein will serve as valuable platforms for accessing nonulosonic sugars and their derivatives.
590 $a School code: 0659.
650 4 $a Biology, Microbiology. $3 1017734
650 4 $a Chemistry, Biochemistry. $3 1017722
650 4 $a Engineering, Chemical. $3 1018531
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710 2 $a Syracuse University. $3 1017440
773 0 $t Dissertation Abstracts International $g 71-11B.
790 1 0 $a Doyle, Robert P., $e advisor
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792 $a 2010
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3429089