ID GUAAA_IGNH4 Reviewed; 188 AA.
AC A8AC69;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 23-OCT-2007, sequence version 1.
DT 27-MAR-2024, entry version 75.
DE RecName: Full=GMP synthase [glutamine-hydrolyzing] subunit A {ECO:0000255|HAMAP-Rule:MF_01510};
DE EC=6.3.5.2 {ECO:0000255|HAMAP-Rule:MF_01510};
DE AltName: Full=Glutamine amidotransferase {ECO:0000255|HAMAP-Rule:MF_01510};
GN Name=guaAA {ECO:0000255|HAMAP-Rule:MF_01510}; OrderedLocusNames=Igni_1345;
OS Ignicoccus hospitalis (strain KIN4/I / DSM 18386 / JCM 14125).
OC Archaea; Thermoproteota; Thermoprotei; Desulfurococcales;
OC Desulfurococcaceae; Ignicoccus.
OX NCBI_TaxID=453591;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KIN4/I / DSM 18386 / JCM 14125;
RX PubMed=19000309; DOI=10.1186/gb-2008-9-11-r158;
RA Podar M., Anderson I., Makarova K.S., Elkins J.G., Ivanova N., Wall M.A.,
RA Lykidis A., Mavromatis K., Sun H., Hudson M.E., Chen W., Deciu C.,
RA Hutchison D., Eads J.R., Anderson A., Fernandes F., Szeto E., Lapidus A.,
RA Kyrpides N.C., Saier M.H. Jr., Richardson P.M., Rachel R., Huber H.,
RA Eisen J.A., Koonin E.V., Keller M., Stetter K.O.;
RT "A genomic analysis of the archaeal system Ignicoccus hospitalis-
RT Nanoarchaeum equitans.";
RL Genome Biol. 9:R158.1-R158.18(2008).
CC -!- FUNCTION: Catalyzes the synthesis of GMP from XMP. {ECO:0000255|HAMAP-
CC Rule:MF_01510}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + H2O + L-glutamine + XMP = AMP + diphosphate + GMP + 2
CC H(+) + L-glutamate; Xref=Rhea:RHEA:11680, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:29985, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:33019, ChEBI:CHEBI:57464, ChEBI:CHEBI:58115,
CC ChEBI:CHEBI:58359, ChEBI:CHEBI:456215; EC=6.3.5.2;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01510};
CC -!- PATHWAY: Purine metabolism; GMP biosynthesis; GMP from XMP (L-Gln
CC route): step 1/1. {ECO:0000255|HAMAP-Rule:MF_01510}.
CC -!- SUBUNIT: Heterodimer composed of a glutamine amidotransferase subunit
CC (A) and a GMP-binding subunit (B). {ECO:0000255|HAMAP-Rule:MF_01510}.
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DR EMBL; CP000816; ABU82521.1; -; Genomic_DNA.
DR RefSeq; WP_012123485.1; NC_009776.1.
DR AlphaFoldDB; A8AC69; -.
DR SMR; A8AC69; -.
DR STRING; 453591.Igni_1345; -.
DR MEROPS; C26.A31; -.
DR GeneID; 5563166; -.
DR KEGG; iho:Igni_1345; -.
DR eggNOG; arCOG00087; Archaea.
DR HOGENOM; CLU_014340_1_4_2; -.
DR OrthoDB; 33844at2157; -.
DR PhylomeDB; A8AC69; -.
DR UniPathway; UPA00189; UER00296.
DR Proteomes; UP000000262; Chromosome.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0003922; F:GMP synthase (glutamine-hydrolyzing) activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006541; P:glutamine metabolic process; IEA:UniProtKB-KW.
DR Gene3D; 3.40.50.880; -; 1.
DR HAMAP; MF_01510; GMP_synthase_A; 1.
DR InterPro; IPR029062; Class_I_gatase-like.
DR InterPro; IPR017926; GATASE.
DR InterPro; IPR023686; GMP_synthase_A.
DR PANTHER; PTHR11922:SF2; GMP SYNTHASE [GLUTAMINE-HYDROLYZING]; 1.
DR PANTHER; PTHR11922; GMP SYNTHASE-RELATED; 1.
DR Pfam; PF00117; GATase; 1.
DR PRINTS; PR00097; ANTSNTHASEII.
DR PRINTS; PR00099; CPSGATASE.
DR PRINTS; PR00096; GATASE.
DR SUPFAM; SSF52317; Class I glutamine amidotransferase-like; 1.
DR PROSITE; PS51273; GATASE_TYPE_1; 1.
PE 3: Inferred from homology;
KW ATP-binding; Glutamine amidotransferase; GMP biosynthesis; Ligase;
KW Nucleotide-binding; Purine biosynthesis; Reference proteome.
FT CHAIN 1..188
FT /note="GMP synthase [glutamine-hydrolyzing] subunit A"
FT /id="PRO_0000316092"
FT DOMAIN 3..188
FT /note="Glutamine amidotransferase type-1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01510"
FT ACT_SITE 79
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01510"
FT ACT_SITE 166
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01510"
FT ACT_SITE 168
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01510"
SQ SEQUENCE 188 AA; 21143 MW; AFC979A8F3504913 CRC64;
MVKVLVVAFG GQYNHLIKRS IERIGHEAAL RPYNLPPPDE GEFDCVVFGG GPLTMPKDFD
KVKGLEAYLR WKKPLLGICL GHQVLALLNG GEVGPSPKPE YGDVTIFVDD EDDILRGLAP
SFRAWESHNE EVLREPPNSK VIAHSENTRV QALKYYNGPY YGVQFHPEVQ HTEKGSLVFQ
NFVELCKR
//
