Colanic acid

Little research has as yet been published on the biochemistry of incorporation of L-fucose into bacterial glycans. Most of the studies have been made on the genetics of the biosynthesis of colanic acid in Gram-... 

It may be possible that the block mechanism of chain assembly also operates in the biosynthesis of colanic acid (33), the extracellular polysaccharide of E. coli.346 347... 

Meredith, T.C., Mamat, U., Kaczynski, Z., Lindner, B., Holst, O., Woodard, R.W. Modification of lipopolysaccharide with colanic acid (M-antigen) repeats in Escherichia coli. J Biol Chem 282 (2007) 7790-7798. 

S Additional information <1, 7, 8> (<1>, enzyme is involved in signal transduction [1] <1>, phosphorylation of Wzc, as regulated by Wzb, is directly connected with the production of a particular capsular polysaccharide, colanic acid. Thus, when Wzc is phosphorylated on tyrosine, no... 

Stevenson, G. Lan, R. Reeves, RR. The colanic acid gene cluster of Salmonella enterica has a complex history. FEMS Microbiol. Lett., 191, 11-16 (2000)... 

Stevenson, G. Andrianopoulos, K. Hobbs, M. Reeves, P.R. Organization of the Escherichia coli K-12 gene cluster responsible for production of the extracellular polysaccharide colanic acid. J. BacterioL, 178, 4885-4893 (1996)... 

It has also been shown to be present in the same, or a similar, form in certain microbial polysaccharides (for example, colanic acid" ). 

Figure 3.37 Structure of the Repeating Unit of Colanic Acid from co//K12...

A number of such compounds were prepared and examined, and at least four were found to possess unmistakable carcinogenic properties. They are (1)1 2-benzanthrene, (2) 1 2-benzpyrene, (3) 5 6-cyclo-pentano-l 2-benzanthrene, and (4) methyl colan-threne, which was obtained from deoxycholic acid, and is very active. 

Further details have appeared of biosynthetic studies on multi-colanic, multicolic, and multicolosic acids (51 R = Me, CH-OH, and... 

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