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Lipopolysaccharide kinase (Kdo/WaaP) family

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Kdo
Identifiers
SymbolKdo
PfamPF06293
Pfam clanCL0016
InterProIPR010440
Available protein structures:
Pfam  structures / ECOD  
PDBRCSB PDB; PDBe; PDBj
PDBsumstructure summary

In molecular biology, the lipopolysaccharide kinase (Kdo/WaaP) family is a family of lipopolysaccharide kinases that includes lipopolysaccharide core heptose(I) kinase rfaP (encoded by the waaP (rfaP) gene). Lipopolysaccharide core heptose(I) kinase rfaP is required for the addition of phosphate to O-4 of the first heptose residue of the lipopolysaccharide (LPS) inner core region. It has previously been shown that it is necessary for resistance to hydrophobic and polycationic antimicrobials in E. coli and that it is required for virulence in invasive strains of Salmonella enterica.[1] The family also includes 3-deoxy-D-manno-octulosonic acid kinase (KDO kinase) from Haemophilus influenzae, which phosphorylates Kdo-lipid IV(A), a lipopolysaccharide precursor, and is involved in virulence.[2]

References

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  1. ^ Yethon JA, Whitfield C (February 2001). "Purification and characterization of WaaP from Escherichia coli, a lipopolysaccharide kinase essential for outer membrane stability". J. Biol. Chem. 276 (8): 5498–504. doi:10.1074/jbc.M008255200. PMID 11069912.
  2. ^ White KA, Lin S, Cotter RJ, Raetz CR (1999). "A Haemophilus influenzae gene that encodes a membrane bound 3-deoxy-D-manno-octulosonic acid (Kdo) kinase. Possible involvement of kdo phosphorylation in bacterial virulence". J Biol Chem. 274 (44): 31391–400. doi:10.1074/jbc.274.44.31391. PMID 10531340.

Further reading

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This article incorporates text from the public domain Pfam and InterPro: IPR010440