LPXH_SALPB
ID LPXH_SALPB Reviewed; 240 AA.
AC A9MW33;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 05-FEB-2008, sequence version 1.
DT 03-AUG-2022, entry version 78.
DE RecName: Full=UDP-2,3-diacylglucosamine hydrolase {ECO:0000255|HAMAP-Rule:MF_00575};
DE EC=3.6.1.54 {ECO:0000255|HAMAP-Rule:MF_00575};
DE AltName: Full=UDP-2,3-diacylglucosamine diphosphatase {ECO:0000255|HAMAP-Rule:MF_00575};
GN Name=lpxH {ECO:0000255|HAMAP-Rule:MF_00575}; OrderedLocusNames=SPAB_03029;
OS Salmonella paratyphi B (strain ATCC BAA-1250 / SPB7).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Salmonella.
OX NCBI_TaxID=1016998;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1250 / SPB7;
RG The Salmonella enterica serovar Paratyphi B Genome Sequencing Project;
RA McClelland M., Sanderson E.K., Porwollik S., Spieth J., Clifton W.S.,
RA Fulton R., Cordes M., Wollam A., Shah N., Pepin K., Bhonagiri V., Nash W.,
RA Johnson M., Thiruvilangam P., Wilson R.;
RL Submitted (NOV-2007) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Hydrolyzes the pyrophosphate bond of UDP-2,3-
CC diacylglucosamine to yield 2,3-diacylglucosamine 1-phosphate (lipid X)
CC and UMP by catalyzing the attack of water at the alpha-P atom. Involved
CC in the biosynthesis of lipid A, a phosphorylated glycolipid that
CC anchors the lipopolysaccharide to the outer membrane of the cell.
CC {ECO:0000255|HAMAP-Rule:MF_00575}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + UDP-2-N,3-O-bis[(3R)-3-hydroxytetradecanoyl]-alpha-D-
CC glucosamine = 2-N,3-O-bis[(3R)-3-hydroxytetradecanoyl]-alpha-D-
CC glucosaminyl 1-phosphate + 2 H(+) + UMP; Xref=Rhea:RHEA:25213,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:57865,
CC ChEBI:CHEBI:57957, ChEBI:CHEBI:78847; EC=3.6.1.54;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00575};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00575};
CC Note=Binds 2 Mn(2+) ions per subunit in a binuclear metal center.
CC {ECO:0000255|HAMAP-Rule:MF_00575};
CC -!- PATHWAY: Glycolipid biosynthesis; lipid IV(A) biosynthesis; lipid IV(A)
CC from (3R)-3-hydroxytetradecanoyl-[acyl-carrier-protein] and UDP-N-
CC acetyl-alpha-D-glucosamine: step 4/6. {ECO:0000255|HAMAP-
CC Rule:MF_00575}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC Rule:MF_00575}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_00575}; Cytoplasmic side {ECO:0000255|HAMAP-Rule:MF_00575}.
CC -!- SIMILARITY: Belongs to the LpxH family. {ECO:0000255|HAMAP-
CC Rule:MF_00575}.
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DR EMBL; CP000886; ABX68392.1; -; Genomic_DNA.
DR RefSeq; WP_000212289.1; NC_010102.1.
DR AlphaFoldDB; A9MW33; -.
DR SMR; A9MW33; -.
DR KEGG; spq:SPAB_03029; -.
DR PATRIC; fig|1016998.12.peg.2857; -.
DR HOGENOM; CLU_074586_0_0_6; -.
DR OMA; FDFWFEY; -.
DR BioCyc; SENT1016998:SPAB_RS12350-MON; -.
DR UniPathway; UPA00359; UER00480.
DR Proteomes; UP000008556; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:InterPro.
DR GO; GO:0019897; C:extrinsic component of plasma membrane; IEA:UniProtKB-UniRule.
DR GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008758; F:UDP-2,3-diacylglucosamine hydrolase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0009245; P:lipid A biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.60.21.10; -; 1.
DR HAMAP; MF_00575; LpxH; 1.
DR InterPro; IPR024654; Calcineurin-like_PHP_lpxH.
DR InterPro; IPR043461; LpxH-like.
DR InterPro; IPR029052; Metallo-depent_PP-like.
DR InterPro; IPR010138; UDP-diacylglucosamine_Hdrlase.
DR PANTHER; PTHR34990; PTHR34990; 1.
DR PANTHER; PTHR34990:SF1; PTHR34990:SF1; 1.
DR Pfam; PF12850; Metallophos_2; 1.
DR SUPFAM; SSF56300; SSF56300; 1.
DR TIGRFAMs; TIGR01854; lipid_A_lpxH; 1.
PE 3: Inferred from homology;
KW Cell inner membrane; Cell membrane; Hydrolase; Lipid A biosynthesis;
KW Lipid biosynthesis; Lipid metabolism; Manganese; Membrane; Metal-binding.
FT CHAIN 1..240
FT /note="UDP-2,3-diacylglucosamine hydrolase"
FT /id="PRO_1000082340"
FT BINDING 8
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 10
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 41
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 41
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 79..80
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 79
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 114
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 122
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 160
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 164
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 167
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 195
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 195
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
FT BINDING 197
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00575"
SQ SEQUENCE 240 AA; 26966 MW; 14B622934008EC12 CRC64;
MATLFIADLH LQTEEPAIVA GFLRFLAVEA RQADALYILG DLFEAWIGDD DPNPLHREMA
VAIKSLVDSG VPCFFIHGNR DFLIGKRFAR ESGMTLLPQE KVLDLYGRNV LIMHGDTLCT
DDAGYQAFRA KVHNPWVQRL FLTLPLFIRR RIAARMRAGS KAANSSKSLD IMDVNAQTVV
AEMEKHRVQW LIHGHTHRPA VHELSANDQP AFRVVLGAWH HEGSMVKVTP DNVELIAFPL
