【摘 要】
：
Polysialic acid (PSA) is a capsular polysaccharide of Escherichia coli composed of a linear polymer of N-acetylneuraminic acid (Neu5Ac) with αt-(2,8) linkages.The polysialic acid (PSA) capsule is an e
【机 构】
：
Key Laboratory of Industrial Biotechnology,Ministry of Education,School of Biotechnology,Jiangnan Un
【出 处】
：
The 5th Sino-US joint Conference of Chemical Engineering(第五届
论文部分内容阅读
Polysialic acid (PSA) is a capsular polysaccharide of Escherichia coli composed of a linear polymer of N-acetylneuraminic acid (Neu5Ac) with αt-(2,8) linkages.The polysialic acid (PSA) capsule is an essential virulence determinant enabling E.coli to evade normal host defense mechanisms as molecular mimicry.Purified PSA is a poor immunogen in humans and other mammals.It does not stimulate synthesis of antibodies required for phagocytic removal of the organism.
其他文献
A culture-dependent approach[1].was applied to investigate the Gram-positive bacteria associated with the Antarctic sponges Rossella nuda, Rossella racovitzae, Hexactinellida, and Myxilla mollis, Homa
An indigenous Klebsiella oxytoca Rs-5 (GenBank accession number EF508705), which previously isolated from the saline field in xmjiang province, China, with ACC as the sole nitrogen source, could secre
Currently, China is leading the commercial mariculture of Gracilaria lemaneiformis, because of their ability of faster growth, higher environmental adaptability, water improvement and higher concentra
Phospholipase which can degrade phospholipids is widely used m oil refining, phospholipid modification, feed additives, medical and many other aspects[1].It plays a very important role in enzymatic de
Research in using orange residue to produce feed-protein,fmding parameter oscillations about activity of feeding-enzyme and content of soluble protein in using single strain and mixed stratus in diffe
Thioalkyl agaroses are a series of hydrophobicinteraction chromatography (HIC) adsorbents exhibiting a special selectivity in purification of macromolecules.To improve purification of rHBsAg, a vaccin
Recombinant E.coli constructed for succinate production with homologous or heterogenous genes under the IPTG inducible promoterslac, tac, and trc showed advantages of fast growth, simple requirements
VHG (Very high gravity) ethanol fermentation was developed in the 1990s to achieve ethanol concentrations more than 15% (v/v)[1].Due to its advantage of saving energy consumption in downstream process
In order to understand the flocculation and separation processes of fermentation broth and improve the separation efficiency, this paper, at a microscale, examined the influence of shearing force and
Enantiomerically pure sulfoxides play an important role in asymmetric synthesis either as chiral building blocks or as stereo directing groups.Asymmetric oxidation of a prochiral sulfide is the most d