Reviewed, UniProtKB/Swiss-Prot Q9TLX4 (LPXA_CYACA)

Names and origin

Protein names

Recommended name:
    Acyl-[acyl-carrier-protein]--UDP-N-acetylglucosamine O-acyltransferase
      Short name=UDP-N-acetylglucosamine acyltransferase
    EC=2.3.1.129

Gene names

Name:

lpxA

Encoded on

Plastid; Chloroplast

Organism

Cyanidium caldarium

Taxonomic identifier

2771 [NCBI]

Taxonomic lineage

Eukaryota › Rhodophyta › Bangiophyceae › Cyanidiales › Cyanidiaceae › Cyanidium

Protein attributes

Sequence length	269 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Involved in the biosynthesis of lipid A, a phosphorylated glycolipid that in bacteria anchors the lipopolysaccharide to the outer membrane of the cell. The target for the lipopolysaccharides produced in the chloroplast could either be the cell envelope of the eukaryote or the plastid membrane Potential.
Catalytic activity	(R)-3-hydroxytetradecanoyl-[acyl-carrier-protein] + UDP-N-acetylglucosamine = [acyl-carrier-protein] + UDP-3-O-(3-hydroxytetradecanoyl)-N-acetylglucosamine. HAMAP MF_00387
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 1/6. HAMAP MF_00387
Subunit structure	Homotrimer By similarity.
Subcellular location	Plastid › chloroplast. HAMAP MF_00387
Sequence similarities	Belongs to the transferase hexapeptide repeat family. LpxA subfamily.

Ontologies

Keywords
Biological process	Lipid A biosynthesis Lipid synthesis
Cellular component	Chloroplast Plastid
Domain	Repeat
Molecular function	Acyltransferase Transferase
Gene Ontology (GO)
Biological process	lipid A biosynthetic process Inferred from electronic annotation. Source: HAMAP
Cellular component	chloroplast Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	acyl-[acyl-carrier-protein]-UDP-N-acetylglucosamine O-acyltransferase 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 – 269	269	Acyl-[acyl-carrier-protein]--UDP-N-acetylglucosamine O-acyltransferase HAMAP MF_00387		PRO_0000188082

Sequences

	Sequence		Length	Mass (Da)
	Q9TLX4-1 [UniParc]. Last modified May 1, 2000. Version 1. Checksum: 7DC42DD00AD0DF7B	FASTA	269	29,377
	10 20 30 40 50 60 MTNIHSTAIV HPAASLGRNV VVGPYSIIGS DVSIGDYTRI GPHVVITGKT VIGCNNQILS 70 80 90 100 110 120 GCILGSVPQD LRYIDSELTG LYIGNNNLIR ENVTVHRASG NGVTYIGNNN LIMVNCHVAH 130 140 150 160 170 180 DCQIRNNIII SNSVSLAGHV IIDSCVIIGG HAGLHQFVHV GALSMIAAMS KIEKNVLPFV 190 200 210 220 230 240 VVSGMPAITR TINLVGLKRY GISKTDINYI RLMLENLKVQ PLAFDTYSIF KKFKSDNLLK 250 260 RNVAVQYFSD FLFNSFRARG FIPFKVPKK

References

[1]	"The structure and gene repertoire of an ancient red algal plastid genome." Gloeckner G., Rosenthal A., Valentin K.-U. J. Mol. Evol. 51:382-390(2000) [PubMed: 11040290] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: RK-1.

Cross-references

Sequence databases
EMBLGenBankDDBJ	AF022186 Genomic DNA. Translation: AAF12950.1.
RefSeq	NP_045144.1.
3D structure databases
HSSP	HSSP built from PDB template 1LXA based on UniProtKB P10440.
ModBase	Search...
Genome annotation databases
GeneID	800145.
Enzyme and pathway databases
BRENDA	2.3.1.129. 145.
Family and domain databases
HAMAP	MF_00387. [Tree]
InterPro	IPR001451. Hexapep_transf. IPR018357. Hexapep_transf_CS. IPR010137. Lipid_A_lpxA. [Graphical view]
Pfam	PF00132. Hexapep. 7 hits. [Graphical view]
PIRSF	PIRSF000456. UDP-GlcNAc_acltr. 1 hit.
TIGRFAMs	TIGR01852. lipid_A_lpxA. 1 hit.
PROSITE	PS00101. HEXAPEP_TRANSFERASES. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

LPXA_CYACA

Accession

Primary (citable) accession number: Q9TLX4

Entry history

Integrated into UniProtKB/Swiss-Prot:	June 1, 2001
Last sequence update:	May 1, 2000
Last modified:	September 22, 2009
This is version 44 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)