Reviewed, UniProtKB/Swiss-Prot Q4UN11 (LPXK_RICFE)

Names and origin

Protein names

Recommended name:
    Tetraacyldisaccharide 4'-kinase
    EC=2.7.1.130
Alternative name(s):
    Lipid A 4'-kinase

Gene names

Name:	lpxK
Ordered Locus Names:	RF_0196

Organism

Rickettsia felis (Rickettsia azadi) [Complete proteome] [HAMAP]

Taxonomic identifier

42862 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Alphaproteobacteria › Rickettsiales › Rickettsiaceae › Rickettsieae › Rickettsia › spotted fever group

Protein attributes

Sequence length	325 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Transfers the gamma-phosphate of ATP to the 4'-position of a tetraacyldisaccharide 1-phosphate intermediate (termed DS-1-P) to form tetraacyldisaccharide 1,4'-bis-phosphate (lipid IVA) By similarity.
Catalytic activity	ATP + (2-N,3-O-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl)-(1->6)-(2-N,3-O-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl phosphate) = ADP + (2-N,3-O-bis(3-hydroxytetradecanoyl)-4-O-phosphono-beta-D-glucosaminyl)-(1->6)-(2-N,3-O-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl phosphate). HAMAP MF_00409
Pathway	Glycolipid biosynthesis; lipid IV(A) biosynthesis; lipid IV(A) from (3R)-3-hydroxytetradecanoyl-[acyl-carrier-protein] and UDP-N-acetyl-alpha-D-glucosamine: step 6/6. HAMAP MF_00409
Sequence similarities	Belongs to the lpxK family.

Ontologies

Keywords
Biological process	Lipid A biosynthesis Lipid synthesis
Ligand	ATP-binding Nucleotide-binding
Molecular function	Kinase Transferase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	lipid A biosynthetic process Inferred from electronic annotation. Source: HAMAP
Molecular function	ATP binding Inferred from electronic annotation. Source: HAMAP tetraacyldisaccharide 4'-kinase activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 325	325	Tetraacyldisaccharide 4'-kinase HAMAP MF_00409		PRO_0000229977
Regions
	Nucleotide binding	54 – 61	8	ATP Potential

Sequences

	Sequence		Length	Mass (Da)
	Q4UN11-1 [UniParc]. Last modified July 5, 2005. Version 1. Checksum: 786E5A475968E94F	FASTA	325	36,608
	10 20 30 40 50 60 MIKLLYPEFW QKRNIIAYLL LPISLIYQFL GYLRASLARP IMLPAKVICV GNCSVGGTGK 70 80 90 100 110 120 TQIVMYLAKL LRAKNVSFVI VTKAYGSNLK SATTIHQGHT ALEVGDEGVI LAKYGTVIAT 130 140 150 160 170 180 KNIKEILPLI NELKPDIIII DDFLQNPYFH KDFTIVSVDS QRLFGNGFLI PAGPLRQYPN 190 200 210 220 230 240 KALDTADLIF LVSSTNDKIP NILTPYIDKL INAQIIPSSD VDKTKNYFAF SGIGNPERFF 250 260 270 280 290 300 STLKNYGLNI TGYKIFPDHY NYLQADLENL YSLAKEHNAT LITTRKDHIK FNDLNNNIVC 310 320 LDVELSINNP DLLNEKIFKK AQIFN

References

[1]

"The genome sequence of Rickettsia felis identifies the first putative conjugative plasmid in an obligate intracellular parasite." Ogata H., Renesto P., Audic S., Robert C., Blanc G., Fournier P.-E., Parinello H., Claverie J.-M., Raoult D. PLoS Biol. 3:1-12(2005) [PubMed: 15984913] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC VR-1525 / URRWXCal2.

Cross-references

Sequence databases
EMBLGenBankDDBJ	CP000053 Genomic DNA. Translation: AAY61047.1.
RefSeq	YP_246212.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	3400385.
GenomeReviews	Gene locus RF_0196 in contig CP000053_GR.
KEGG	rfe:RF_0196.
NMPDR	fig|315456.3.peg.30.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	Q4UN11.
OMA	VILMDDG
Enzyme and pathway databases
BioCyc	RFEL315456:RF_0196-MON.
BRENDA	2.7.1.130. 297363.
Family and domain databases
HAMAP	MF_00409. [Tree]
InterPro	IPR003758. Tetraacyldisaccharide_4-kinase. [Graphical view]
Pfam	PF02606. LpxK. 1 hit. [Graphical view]
TIGRFAMs	TIGR00682. lpxK. 1 hit.
ProtoNet	Search...

Entry information

Entry name

LPXK_RICFE

Accession

Primary (citable) accession number: Q4UN11

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 4, 2006
Last sequence update:	July 5, 2005
Last modified:	November 3, 2009
This is version 23 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)