ID Q83MU5_TROWT Unreviewed; 259 AA.
AC Q83MU5;
DT 01-JUN-2003, integrated into UniProtKB/TrEMBL.
DT 01-JUN-2003, sequence version 1.
DT 27-MAR-2024, entry version 110.
DE RecName: Full=Lipid II isoglutaminyl synthase (glutamine-hydrolyzing) subunit GatD {ECO:0000256|HAMAP-Rule:MF_02213};
DE EC=6.3.5.13 {ECO:0000256|HAMAP-Rule:MF_02213};
DE AltName: Full=Lipid II isoglutaminyl synthase glutaminase subunit {ECO:0000256|HAMAP-Rule:MF_02213};
DE EC=3.5.1.2 {ECO:0000256|HAMAP-Rule:MF_02213};
GN Name=cobQ {ECO:0000313|EMBL:AAO44594.1};
GN Synonyms=gatD {ECO:0000256|HAMAP-Rule:MF_02213};
GN OrderedLocusNames=TWT_497 {ECO:0000313|EMBL:AAO44594.1};
OS Tropheryma whipplei (strain Twist) (Whipple's bacillus).
OC Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Tropherymataceae;
OC Tropheryma.
OX NCBI_TaxID=203267 {ECO:0000313|EMBL:AAO44594.1, ECO:0000313|Proteomes:UP000002200};
RN [1] {ECO:0000313|EMBL:AAO44594.1, ECO:0000313|Proteomes:UP000002200}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Twist {ECO:0000313|EMBL:AAO44594.1,
RC ECO:0000313|Proteomes:UP000002200};
RX PubMed=12902375; DOI=10.1101/gr.1474603;
RA Raoult D., Ogata H., Audic S., Robert C., Suhre K., Drancourt M.,
RA Claverie J.-M.;
RT "Tropheryma whipplei twist: a human pathogenic Actinobacteria with a
RT reduced genome.";
RL Genome Res. 13:1800-1809(2003).
CC -!- FUNCTION: The lipid II isoglutaminyl synthase complex catalyzes the
CC formation of alpha-D-isoglutamine in the cell wall lipid II stem
CC peptide. The GatD subunit catalyzes the hydrolysis of glutamine to
CC glutamate and ammonia. The resulting ammonia molecule is channeled to
CC the active site of MurT. {ECO:0000256|HAMAP-Rule:MF_02213}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + beta-D-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-
CC D-Ala-D-Ala)-di-trans,octa-cis-undecaprenyl diphosphate + H2O + L-
CC glutamine = ADP + beta-D-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-D-
CC isoglutaminyl-L-Lys-D-Ala-D-Ala)-di-trans,octa-cis-undecaprenyl
CC diphosphate + H(+) + L-glutamate + phosphate; Xref=Rhea:RHEA:57928,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:29985,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:58359,
CC ChEBI:CHEBI:60033, ChEBI:CHEBI:62233, ChEBI:CHEBI:456216;
CC EC=6.3.5.13; Evidence={ECO:0000256|HAMAP-Rule:MF_02213};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + L-glutamine = L-glutamate + NH4(+);
CC Xref=Rhea:RHEA:15889, ChEBI:CHEBI:15377, ChEBI:CHEBI:28938,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:58359; EC=3.5.1.2;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02213};
CC -!- PATHWAY: Cell wall biogenesis; peptidoglycan biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_02213}.
CC -!- SUBUNIT: Forms a heterodimer with MurT. {ECO:0000256|HAMAP-
CC Rule:MF_02213}.
CC -!- SIMILARITY: Belongs to the CobB/CobQ family. GatD subfamily.
CC {ECO:0000256|HAMAP-Rule:MF_02213}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_02213}.
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DR EMBL; AE014184; AAO44594.1; -; Genomic_DNA.
DR RefSeq; WP_011096222.1; NC_004572.3.
DR AlphaFoldDB; Q83MU5; -.
DR STRING; 203267.TWT_497; -.
DR GeneID; 67388040; -.
DR KEGG; twh:TWT_497; -.
DR eggNOG; COG3442; Bacteria.
DR HOGENOM; CLU_064047_0_0_11; -.
DR OrthoDB; 9782045at2; -.
DR UniPathway; UPA00219; -.
DR Proteomes; UP000002200; Chromosome.
DR GO; GO:0140282; F:carbon-nitrogen ligase activity on lipid II; IEA:UniProtKB-UniRule.
DR GO; GO:0004359; F:glutaminase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0071555; P:cell wall organization; IEA:UniProtKB-KW.
DR GO; GO:0009236; P:cobalamin biosynthetic process; IEA:InterPro.
DR GO; GO:0006541; P:glutamine metabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0009252; P:peptidoglycan biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0008360; P:regulation of cell shape; IEA:UniProtKB-KW.
DR CDD; cd01750; GATase1_CobQ; 1.
DR HAMAP; MF_02213; Lipid_II_synth_GatD; 1.
DR InterPro; IPR029062; Class_I_gatase-like.
DR InterPro; IPR033949; CobQ_GATase1.
DR InterPro; IPR011698; GATase_3.
DR InterPro; IPR043702; Lipid_II_synth_GatD.
DR Pfam; PF07685; GATase_3; 1.
DR SUPFAM; SSF52317; Class I glutamine amidotransferase-like; 1.
DR PROSITE; PS51274; GATASE_COBBQ; 1.
PE 3: Inferred from homology;
KW Cell shape {ECO:0000256|HAMAP-Rule:MF_02213};
KW Cell wall biogenesis/degradation {ECO:0000256|HAMAP-Rule:MF_02213};
KW Glutamine amidotransferase {ECO:0000256|HAMAP-Rule:MF_02213,
KW ECO:0000256|PROSITE-ProRule:PRU00606};
KW Hydrolase {ECO:0000256|HAMAP-Rule:MF_02213};
KW Ligase {ECO:0000256|HAMAP-Rule:MF_02213};
KW Peptidoglycan synthesis {ECO:0000256|HAMAP-Rule:MF_02213};
KW Reference proteome {ECO:0000313|Proteomes:UP000002200}.
FT DOMAIN 40..186
FT /note="CobB/CobQ-like glutamine amidotransferase"
FT /evidence="ECO:0000259|Pfam:PF07685"
FT ACT_SITE 181
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02213"
FT BINDING 123
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02213"
SQ SEQUENCE 259 AA; 28733 MW; 6C716681A3F4C61A CRC64;
MLLVDLFPHQ LSIRGDRGNV TALKARAHFA GHKLEIYDLH PGNVLPTGVS GVVIGSGPDY
VLADLLGDMR RLACDLKALR DDNVPFLAIS NGLRLLSEKF VSHDDVEHTA AGVYPISCHR
IRRRVGESIV KCDFGELVGF ENHDIEITDN EHPLGYGLDS RGTFSRPHGF FLGNLMACFL
HGAFLPLNPI VADWFLSRMG GCATAHSVDN DCNPKQSCDN RYCCAQPSAT DLDFYSHMAR
RVIKKRVTRA IRYKFIPGK
//
