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Literature summary for 2.4.99.12 extracted from

  • Brabetz, W.; Müller-Loennies, S.; Brade, H.
    3-Deoxy-D-manno-oct-2-ulosonic acid (Kdo) transferase (WaaA) and kdo kinase (KdkA) of Haemophilus influenzae are both required to complement a waaA knockout mutation of Escherichia coli (2000), J. Biol. Chem., 275, 34954-34962.
    View publication on PubMed
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Cloned(Commentary)

Cloned (Comment) Organism
the gene is expressed in the Gram-positive host Corynebacterium glutamicum. Both Escherichia coli strains which express waaA and kdkA from Haemophilus influenzae synthesize an lipopolysaccharide containing a single Kdo residue that was exclusively phosphorylated at position 4 Haemophilus influenzae

Organism

Organism UniProt Comment Textmining
Escherichia coli
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Haemophilus influenzae P44806
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Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2-deoxy-2-[[(3R)-3-hydroxypentadecanoyl]amino]-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-beta-D-glucopyranosyl-(1->6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[[(3R)-3-hydroxytetradecanoyl]amino]-1-O-phosphono-alpha-D-glucopyranose + CMP-3-deoxy-D-manno-octulosonate Escherichia coli WBB22 and WBB34 produce lipopolysaccharide composed of a single terminal KDO-residue, which is exclusively phosphorylated at position 4 and is linked to the 6'-position of the lipid A backbone (beta-GlcN-4P-(1-6)-alpha-GlcN-1P). Lipid IV(A) = 2-deoxy-2-[[(3R)-3-hydroxypentadecanoyl]amino]-3-O[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-beta-D-glucopyranosyl-(1->6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[[(3R)-3-hydroxytetradecanoyl]amino]-1-O-phosphono-alpha-D-glucopyranose. (KDO)-lipid IV(A) = 3-deoxy-alpha-D-manno-oct-2-ulopyranosyl-(2->6)-2-deoxy-2-[[(3R)-3-hydroxypentadecanoyl]amino]-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-beta-D-glucopyranosyl-(1->6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[[(3R)-3-hydroxytetradecanoyl]amino]-1-O-phosphono-alpha-D-glucopyranose Haemophilus influenzae 3-deoxy-alpha-D-manno-oct-2-ulopyranosyl-(2->6)-2-deoxy-2-[[(3R)-3-hydroxypentadecanoyl]amino]-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-beta-D-glucopyranosyl-(1->6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[[(3R)-3-hydroxytetradecanoyl]amino]-1-O-phosphono-alpha-D-glucopyranose + CMP
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 r

Synonyms

Synonyms Comment Organism
3-deoxy-D-manno-oct-2-ulosonic acid transferase
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 Escherichia coli
3-deoxy-D-manno-oct-2-ulosonic acid transferase
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 Haemophilus influenzae
Kdo transferase
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 Escherichia coli
monofunctional KDO transferase
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 Haemophilus influenzae

General Information

General Information Comment Organism
malfunction waaA (monofunctional Kdo transferase) of Haemophilus influenzae can not complement a knockout mutation in the corresponding gene of an Re-type Escherichia coli strain (encoding a bifunctional enzyme that transfers two 3-deoxy-D-manno-octulosonate residues to the lipid A precursor). However, complementation is possible by coexpressing the recombinant waaA together with the LPS-specific KDO kinase gene (kdkA) of Haemophilus influenzae DSM11121 or I69, respectively Escherichia coli