ID A0A2T1BY19_9CYAN Unreviewed; 270 AA.
AC A0A2T1BY19;
DT 18-JUL-2018, integrated into UniProtKB/TrEMBL.
DT 18-JUL-2018, sequence version 1.
DT 24-JAN-2024, entry version 16.
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=C7B64_21645 {ECO:0000313|EMBL:PSB00798.1};
OS Merismopedia glauca CCAP 1448/3.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales; Merismopediaceae;
OC Merismopedia.
OX NCBI_TaxID=1296344 {ECO:0000313|EMBL:PSB00798.1, ECO:0000313|Proteomes:UP000238762};
RN [1] {ECO:0000313|EMBL:PSB00798.1, ECO:0000313|Proteomes:UP000238762}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCAP 1448/3 {ECO:0000313|EMBL:PSB00798.1,
RC ECO:0000313|Proteomes:UP000238762};
RA Cohen D.B., Kent A.D.;
RL Submitted (FEB-2018) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:PSB00798.1, ECO:0000313|Proteomes:UP000238762}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCAP 1448/3 {ECO:0000313|EMBL:PSB00798.1,
RC ECO:0000313|Proteomes:UP000238762};
RA Moore K.R., Magnabosco C., Momper L., Gold D.A., Bosak T., Fournier G.P.;
RT "The ancient ancestry and fast evolution of plastids.";
RL Submitted (MAR-2018) 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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:PSB00798.1}.
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DR EMBL; PVWJ01000159; PSB00798.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2T1BY19; -.
DR OrthoDB; 9782045at2; -.
DR UniPathway; UPA00219; -.
DR Proteomes; UP000238762; Unassembled WGS sequence.
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-KW.
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.
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 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:UP000238762}.
FT DOMAIN 9..219
FT /note="CobB/CobQ-like glutamine amidotransferase"
FT /evidence="ECO:0000259|Pfam:PF07685"
FT ACT_SITE 100
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02213"
FT ACT_SITE 212
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02213"
FT BINDING 137
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02213"
SQ SEQUENCE 270 AA; 29311 MW; F4FCBB801009CFF1 CRC64;
MASQQLQLNI GWLYPKLMST YGDRGNAICI QQRALWRGYN VEIIPIDTEA TIADIEGVDV
IVGGGAQDRQ QEIVMRDLKG SKASALKAKL DSGTPGVFTC GSPQLLGHYY EPALGQKIEG
LGLLDLVSKH PGIEANRCIG NVVFEIVASK LAEDLRKTLG EVPLIIGFEN HGGRTYLGKV
EALGKVVKGY GNNGEDGTEG AFYNNAIATY SHGPLLPKNP FLADWLIKTA LSEKYQTEIE
LTPLDDTLAM QARTAMFKRL GVNNSERMAS
//
