Subsystem: LOS core oligosaccharide biosynthesis

This subsystem's description is:

In E. coli, Salmonella, and K. pneumoniae the core oligosaccharide biosynthesis genes are clustered on the chromosome. These loci generally encode all of the activities required for outer-core assembly as well as the transferases needed for inner-core synthesis. In E. coli and Salmonella, the waa locus consists of three operons. The operons are defined by the first gene in each transcriptional unit: gmhD-, waaQ-, and waaA.

*********VARIANT CODES:***********

1.0 complete set of genes required for biosynthesis and transfer of L,D-heptose (Heptose biosynthesis pathway);
1.x some genes are missing in the Heptose biosynthesis pathway;
2.0 - whole set of Heptose biosynthesis and the Outer core (LOS core) biosynthesis genes;
2.x - some genes are missing in LOS core oligosaccharide biosynthesis.

For more information, please check out the description and the additional notes tabs, below

Literature ReferencesLipopolysaccharide endotoxins. Raetz CR Annual review of biochemistry 200212045108
The Campylobacter jejuni glycome. Karlyshev AV FEMS microbiology reviews 2005 Apr15808749
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