GUAA_HELMI
ID GUAA_HELMI Reviewed; 513 AA.
AC B0TI09;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 08-APR-2008, sequence version 1.
DT 03-AUG-2022, entry version 91.
DE RecName: Full=GMP synthase [glutamine-hydrolyzing] {ECO:0000255|HAMAP-Rule:MF_00344};
DE EC=6.3.5.2 {ECO:0000255|HAMAP-Rule:MF_00344};
DE AltName: Full=GMP synthetase {ECO:0000255|HAMAP-Rule:MF_00344};
DE AltName: Full=Glutamine amidotransferase {ECO:0000255|HAMAP-Rule:MF_00344};
GN Name=guaA {ECO:0000255|HAMAP-Rule:MF_00344}; OrderedLocusNames=Helmi_00570;
GN ORFNames=HM1_0057;
OS Heliobacterium modesticaldum (strain ATCC 51547 / Ice1).
OC Bacteria; Firmicutes; Clostridia; Eubacteriales; Heliobacteriaceae;
OC Heliomicrobium.
OX NCBI_TaxID=498761;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51547 / Ice1;
RX PubMed=18441057; DOI=10.1128/jb.00299-08;
RA Sattley W.M., Madigan M.T., Swingley W.D., Cheung P.C., Clocksin K.M.,
RA Conrad A.L., Dejesa L.C., Honchak B.M., Jung D.O., Karbach L.E.,
RA Kurdoglu A., Lahiri S., Mastrian S.D., Page L.E., Taylor H.L., Wang Z.T.,
RA Raymond J., Chen M., Blankenship R.E., Touchman J.W.;
RT "The genome of Heliobacterium modesticaldum, a phototrophic representative
RT of the Firmicutes containing the simplest photosynthetic apparatus.";
RL J. Bacteriol. 190:4687-4696(2008).
CC -!- FUNCTION: Catalyzes the synthesis of GMP from XMP. {ECO:0000255|HAMAP-
CC Rule:MF_00344}.
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_00344};
CC -!- PATHWAY: Purine metabolism; GMP biosynthesis; GMP from XMP (L-Gln
CC route): step 1/1. {ECO:0000255|HAMAP-Rule:MF_00344}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00344}.
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DR EMBL; CP000930; ABZ82682.1; -; Genomic_DNA.
DR RefSeq; WP_012281231.1; NC_010337.2.
DR AlphaFoldDB; B0TI09; -.
DR SMR; B0TI09; -.
DR STRING; 498761.HM1_0057; -.
DR EnsemblBacteria; ABZ82682; ABZ82682; HM1_0057.
DR KEGG; hmo:HM1_0057; -.
DR eggNOG; COG0518; Bacteria.
DR eggNOG; COG0519; Bacteria.
DR HOGENOM; CLU_014340_0_5_9; -.
DR OMA; KRKIIGH; -.
DR OrthoDB; 504464at2; -.
DR UniPathway; UPA00189; UER00296.
DR Proteomes; UP000008550; Chromosome.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003922; F:GMP synthase (glutamine-hydrolyzing) activity; IEA:UniProtKB-UniRule.
DR GO; GO:0016462; F:pyrophosphatase activity; IEA:InterPro.
DR GO; GO:0006541; P:glutamine metabolic process; IEA:UniProtKB-KW.
DR CDD; cd01742; GATase1_GMP_Synthase; 1.
DR CDD; cd01997; GMP_synthase_C; 1.
DR Gene3D; 3.40.50.620; -; 1.
DR Gene3D; 3.40.50.880; -; 1.
DR HAMAP; MF_00344; GMP_synthase; 1.
DR InterPro; IPR029062; Class_I_gatase-like.
DR InterPro; IPR017926; GATASE.
DR InterPro; IPR001674; GMP_synth_C.
DR InterPro; IPR004739; GMP_synth_GATase.
DR InterPro; IPR022955; GMP_synthase.
DR InterPro; IPR025777; GMPS_ATP_PPase_dom.
DR InterPro; IPR022310; NAD/GMP_synthase.
DR InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR Pfam; PF00117; GATase; 1.
DR Pfam; PF00958; GMP_synt_C; 1.
DR Pfam; PF02540; NAD_synthase; 1.
DR SUPFAM; SSF52317; SSF52317; 1.
DR TIGRFAMs; TIGR00884; guaA_Cterm; 1.
DR TIGRFAMs; TIGR00888; guaA_Nterm; 1.
DR PROSITE; PS51273; GATASE_TYPE_1; 1.
DR PROSITE; PS51553; GMPS_ATP_PPASE; 1.
PE 3: Inferred from homology;
KW ATP-binding; Glutamine amidotransferase; GMP biosynthesis; Ligase;
KW Nucleotide-binding; Purine biosynthesis; Reference proteome.
FT CHAIN 1..513
FT /note="GMP synthase [glutamine-hydrolyzing]"
FT /id="PRO_1000120315"
FT DOMAIN 7..197
FT /note="Glutamine amidotransferase type-1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT DOMAIN 198..387
FT /note="GMPS ATP-PPase"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT ACT_SITE 84
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT ACT_SITE 171
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT ACT_SITE 173
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT BINDING 225..231
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
SQ SEQUENCE 513 AA; 56910 MW; CA297448F30824DB CRC64;
MAKPHETILV LDFGGQYNQL IARRVRELHV YCEMHPYTIS VDAIREMNPK GIIFTGGPAS
VYEEKAPAVD PAIYDLGIPI LGICYGMQLM VNQLGGKVGR AESREYGKAS LTITASEGPF
AGMEGDVQCW MSHGDKVEVL PHGFVGSGKT DHAPFAAMAD PVRRFYGVQF HPEVRHTPQG
MDMMRNFLFG VCGCTGEWTM ENFIEEQVAA IRARVGSGKV LCALSGGVDS SVAALLVHRA
VGEQLTCVYV DHGFMRLNES ERIIKTFRDE LGMNLIAVEA SERFMAKVAG VSDPETKRKS
IGNEFIRVFE EEAAKLGQVD FLVQGTLYPD VVESGTSTAE TIKTHHNVGG LPEDMKFELI
EPLRTLFKDE VREVGQRLGL PEDIVWRQPF PGPGLAIRVL GEITKESLDI LRHADDIVFQ
EIKKAGLYRQ IWQSFVVLPT TVRSVGVMGD GRTYEYPAIL RAVTSDDAMT ADWARLPYEL
LEKISNRIVN EVKGVNRVVY DITSKPPGTI EWE
