Summary: Lipopolysaccharide kinase (Kdo/WaaP) family
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Lipopolysaccharide kinase (Kdo/WaaP) family Edit Wikipedia article
The family consists of lipopolysaccharide kinases including 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. 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.
- 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): 5498â€“504. doi:10.1074/jbc.M008255200. PMIDÂ 11069912.
- 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): 31391â€“400. doi:10.1074/jbc.274.44.31391. PMIDÂ 10531340.
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Lipopolysaccharide kinase (Kdo/WaaP) family Provide feedback
These lipopolysaccharide kinases are related to protein kinases PF00069. This family includes waaP (rfaP) gene product 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 WaaP is necessary for resistance to hydrophobic and polycationic antimicrobials in E. coli and that it is required for virulence in invasive strains of S. enterica .
Yethon JA, Whitfield C; , J Biol Chem 2001;276:5498-5504.: Purification and characterization of WaaP from Escherichia coli, a lipopolysaccharide kinase essential for outer membrane stability. PUBMED:11069912 EPMC:11069912
Krupa A, Srinivasan N; , Protein Sci 2002;11:1580-1584.: Lipopolysaccharide phosphorylating enzymes encoded in the genomes of Gram-negative bacteria are related to the eukaryotic protein kinases. PUBMED:12021457 EPMC:12021457
White KA, Lin S, Cotter RJ, Raetz CR; , J Biol Chem 1999;274:31391-31400.: 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. PUBMED:10531340 EPMC:10531340
Internal database links
|SCOOP:||ABC1 APH Choline_kinase DUF1679 DUF5898 EcKL FTA2 Haspin_kinase Kinase-like PK_Tyr_Ser-Thr Pkinase Pkinase_fungal RIO1 Seadorna_VP7 TCAD9 WaaY YrbL-PhoP_reg|
|Similarity to PfamA using HHSearch:||Pkinase RIO1 APH PK_Tyr_Ser-Thr TCAD9|
This tab holds annotation information from the InterPro database.
No InterPro data for this Pfam family.
Below is a listing of the unique domain organisations or architectures in which this domain is found. More...
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This superfamily includes the Serine/Threonine- and Tyrosine- protein kinases as well as related kinases that act on non-protein substrates.
The clan contains the following 40 members:ABC1 AceK_kinase Act-Frag_cataly Alpha_kinase APH APH_6_hur Choline_kinase CotH DUF1679 DUF2252 DUF4135 DUF5898 EcKL Fam20C Fructosamin_kin FTA2 Haspin_kinase HipA_C Ins_P5_2-kin IPK IucA_IucC Kdo Kinase-like Kinase-PolyVal KIND Pan3_PK PI3_PI4_kinase PIP49_C PIP5K PK_Tyr_Ser-Thr Pkinase Pkinase_fungal Pox_ser-thr_kin RIO1 Seadorna_VP7 TCAD9 UL97 WaaY YrbL-PhoP_reg YukC
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1Cannot generate PP/Heatmap alignments for seeds; no PP data available
Key: available, not generated, — not available.
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|Seed source:||Krupa A, Srinivasan N|
|Number in seed:||10|
|Number in full:||4428|
|Average length of the domain:||159.40 aa|
|Average identity of full alignment:||18 %|
|Average coverage of the sequence by the domain:||47.22 %|
|HMM build commands:||
build method: hmmbuild -o /dev/null HMM SEED
search method: hmmsearch -Z 61295632 -E 1000 --cpu 4 HMM pfamseq
|Family (HMM) version:||17|
|Download:||download the raw HMM for this family|
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This visualisation provides a simple graphical representation of the distribution of this family across species. You can find the original interactive tree in the More....
This chart is a modified "sunburst" visualisation of the species tree for this family. It shows each node in the tree as a separate arc, arranged radially with the superkingdoms at the centre and the species arrayed around the outermost ring.
How the sunburst is generated
The tree is built by considering the taxonomic lineage of each sequence that has a match to this family. For each node in the resulting tree, we draw an arc in the sunburst. The radius of the arc, its distance from the root node at the centre of the sunburst, shows the taxonomic level ("superkingdom", "kingdom", etc). The length of the arc represents either the number of sequences represented at a given level, or the number of species that are found beneath the node in the tree. The weighting scheme can be changed using the sunburst controls.
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Unmapped species names
The tree is built by looking at each sequence in the full alignment for the family. We take the name of the species given by UniProt and try to map that to the full taxonomic tree from NCBI. In some cases, the name chosen by UniProt does not map to any node in the NCBI tree, perhaps because the chosen name is listed as a synonym or a misspelling in the NCBI taxonomy.
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Since we reduce the species tree to only the eight main taxonomic levels, sequences that are mapped to the sub-species level in the tree would not normally be shown. Rather than leave out these species, we map them instead to their parent species. So, for example, for sequences belonging to one of the Vibrio cholerae sub-species in the NCBI taxonomy, we show them instead as belonging to the species Vibrio cholerae.
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The tree shows the occurrence of this domain across different species. More...
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For all of the domain matches in a full alignment, we count the number that are found on all sequences in the alignment. This total is shown in the purple box.
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Finally, we group sequences from the same organism according to the NCBI code that is assigned by UniProt, allowing us to count the number of distinct sequences on which the domain is found. This value is shown in the pink boxes.
We use the NCBI species tree to group organisms according to their taxonomy and this forms the structure of the displayed tree. Note that in some cases the trees are too large (have too many nodes) to allow us to build an interactive tree, but in most cases you can still view the tree in a plain text, non-interactive representation. Those species which are represented in the seed alignment for this domain are highlighted.
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For those sequences which have a structure in the Protein DataBank, we use the mapping between UniProt, PDB and Pfam coordinate systems from the PDBe group, to allow us to map Pfam domains onto UniProt sequences and three-dimensional protein structures. The table below shows the structures on which the Kdo domain has been found. There are 7 instances of this domain found in the PDB. Note that there may be multiple copies of the domain in a single PDB structure, since many structures contain multiple copies of the same protein sequence.
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AlphaFold Structure Predictions
The list of proteins below match this family and have AlphaFold predicted structures. Click on the protein accession to view the predicted structure.