ID V5RU54_9BACT Unreviewed; 239 AA.
AC V5RU54;
DT 19-FEB-2014, integrated into UniProtKB/TrEMBL.
DT 19-FEB-2014, sequence version 1.
DT 13-SEP-2023, entry version 37.
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=gatD {ECO:0000256|HAMAP-Rule:MF_02213};
GN ORFNames=RAAC3_TM7C00001G0145 {ECO:0000313|EMBL:AHB42011.1};
OS Candidatus Saccharibacteria bacterium RAAC3_TM7_1.
OC Bacteria; Candidatus Saccharibacteria.
OX NCBI_TaxID=1394711 {ECO:0000313|EMBL:AHB42011.1, ECO:0000313|Proteomes:UP000018523};
RN [1] {ECO:0000313|EMBL:AHB42011.1, ECO:0000313|Proteomes:UP000018523}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=RAAC3_TM7_1 {ECO:0000313|EMBL:AHB42011.1,
RC ECO:0000313|Proteomes:UP000018523};
RA Kantor R.S., Wrighton K.C., Handley K.M., Sharon I., Hug L.A.,
RA Castelle C.J., Thomas B.C., Banfield J.F.;
RT "Small genomes and sparse metabolisms of sediment-associated bacteria from
RT four candidate phyla.";
RL Submitted (NOV-2013) to the EMBL/GenBank/DDBJ databases.
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}.
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DR EMBL; CP006915; AHB42011.1; -; Genomic_DNA.
DR AlphaFoldDB; V5RU54; -.
DR STRING; 1394711.RAAC3_TM7C00001G0145; -.
DR KEGG; sbe:RAAC3_TM7C01G0145; -.
DR PATRIC; fig|1394711.4.peg.124; -.
DR HOGENOM; CLU_064047_0_0_0; -.
DR BioCyc; CSAC1394711:G132K-144-MONOMER; -.
DR UniPathway; UPA00219; -.
DR Proteomes; UP000018523; 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 PANTHER; PTHR21343; DETHIOBIOTIN SYNTHETASE; 1.
DR PANTHER; PTHR21343:SF9; LIPID II ISOGLUTAMINYL SYNTHASE (GLUTAMINE-HYDROLYZING) SUBUNIT GATD; 1.
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:UP000018523}.
FT DOMAIN 8..198
FT /note="CobB/CobQ-like glutamine amidotransferase"
FT /evidence="ECO:0000259|Pfam:PF07685"
FT ACT_SITE 94
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02213"
FT ACT_SITE 191
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02213"
FT BINDING 128
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02213"
SQ SEQUENCE 239 AA; 26683 MW; E94866885950211D CRC64;
MNKELAILQL YPRDMNIYGD WGNVLTIMRR AQWHGYEPKL YEYNPGDVFP EHVDILIGGG
GQDAGQDIIQ DDLLKISSKL HELTDADTPM LLICGLYQLF GNFFKTKDGH VIKGTGLLDI
ETYGGPERMI GNIVIKSDEF GEIVGYENHS GQTFLSAGMK PFGKVIRGAG NNGQDDYEGA
RYKNVIGSYL HGSLLPKNPA IADWLIEKAT TKKFGDFTPS VIDDRFAQKA REVAVRRPR
//
