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Glucokinase (glk), phosphomannomutase (manB), and mannose-1-phosphate guanylytransferase (manC) are needed for the biosynthesis of GDP-mannose. A recombinant E. coli strain over-expressing these three genes was constructed to produce guanosine 5'-diphosphate (GDP)-mannose, the donor of GDP-fucose, an essential substrate for synthesis of fucosyloligosaccharides. In addition, the glk, manB, and manC genes were individually cloned into the expression vector pET-22b (+) to construct three recombinant E. coli strains pET-glk, pET-manB and pET-manC, respectively. Fermentation of the recombinant strain BL21/pET-glk-manB-manC had a conversion rate of 23% from mannose to GDP-mannose under IPTG induction, while coupling fermentation of the three recombinant strains BL21/pET-glk, BL21/pET-manB, BL21/pET-manC resulted in a conversion rate of 33% under the same induction conditions.
This article was published in the following journal.
Name: Biotechnology letters
Flux coupling analysis is a method for investigating the connections between reactions of metabolic networks. Here, we construct the hierarchical flux coupling graph for the reactions of the Escherich...
This study determined the effect of feed fermentation with Lactobacillus reuteri on growth performance and abundance of enterotoxigenic Escherichia coli (ETEC) in weanling piglets. L. reuteri strains ...
Arginine is a high-value product, especially for the pharmaceutical industry. Growing demand for environmental-friendly and traceable products have stressed the need for microbial production of this a...
A rapid and sensitive detection of microbes in water and biological fluids is a key requirement in water and food safety, environmental monitoring, and clinical diagnosis and treatment. In the current...
During amino-acid crystal fermentation, mechanical stress on bacterial cells caused by crystal collision often impacts negatively on bacterial growth and amino-acid production. When Escherichia coli c...
Despite the characterization of many aetiologic genetic changes. The specific causative factors in the development of sporadic colorectal cancer remain unclear. This study was performed to...
The purpose of this study is to measure the therapeutic potential of Escherichia coli (E. coli) and yeast ribosomal Ribonucleic acid (RNA) fragments to maintain the production of platelets...
The purpose of this study is to review patients with E. coli infections at the University of Pittsburgh Medical Center (UPMC) from July 1, 2007 to June 30, 2010 to determine if these infec...
This proposed study aims to document the risk factors for quinolone resistance in bloodstream isolates of E. coli. Additionally, the adequacy of empiric antibiotic therapy for E. coli bloo...
The aim of the present protocol is to study gene activity in fat and muscle tissue in type 2 diabetics and healthy volunteers after injection of E. coli endotoxin.We hereby hope to gain in...
Strains of ESCHERICHIA COLI that are a subgroup of SHIGA-TOXIGENIC ESCHERICHIA COLI. They cause non-bloody and bloody DIARRHEA; HEMOLYTIC UREMIC SYNDROME; and hemorrhagic COLITIS. An important member of this subgroup is ESCHERICHIA COLI O157-H7.
A class of toxins that inhibit protein synthesis by blocking the interaction of ribosomal RNA; (RNA, RIBOSOMAL) with PEPTIDE ELONGATION FACTORS. They include SHIGA TOXIN which is produced by SHIGELLA DYSENTERIAE and a variety of shiga-like toxins that are produced by pathologic strains of ESCHERICHIA COLI such as ESCHERICHIA COLI O157.
A species of gram-negative, rod-shaped bacteria belonging to the K serogroup of ESCHERICHIA COLI. It lives as a harmless inhabitant of the human LARGE INTESTINE and is widely used in medical and GENETIC RESEARCH.
A verocytotoxin-producing serogroup belonging to the O subfamily of Escherichia coli which has been shown to cause severe food-borne disease. A strain from this serogroup, serotype H7, which produces SHIGA TOXINS, has been linked to human disease outbreaks resulting from contamination of foods by E. coli O157 from bovine origin.
Vaccines or candidate vaccines used to prevent or treat both enterotoxigenic and enteropathogenic Escherichia coli infections.
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"using living things to create products or to do tasks for humans" About Biotechnology - Biotech Biotechnology is the practice of using plants, animals and micro-organisms such as bacteria, as well as biological processes - such as the ripen...