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GUAA_EHRCR
ID   GUAA_EHRCR              Reviewed;         526 AA.
AC   Q2GHY2;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   21-MAR-2006, sequence version 1.
DT   03-AUG-2022, entry version 98.
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=ECH_0123;
OS   Ehrlichia chaffeensis (strain ATCC CRL-10679 / Arkansas).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Anaplasmataceae; Ehrlichia.
OX   NCBI_TaxID=205920;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC CRL-10679 / Arkansas;
RX   PubMed=16482227; DOI=10.1371/journal.pgen.0020021;
RA   Dunning Hotopp J.C., Lin M., Madupu R., Crabtree J., Angiuoli S.V.,
RA   Eisen J.A., Seshadri R., Ren Q., Wu M., Utterback T.R., Smith S., Lewis M.,
RA   Khouri H., Zhang C., Niu H., Lin Q., Ohashi N., Zhi N., Nelson W.C.,
RA   Brinkac L.M., Dodson R.J., Rosovitz M.J., Sundaram J.P., Daugherty S.C.,
RA   Davidsen T., Durkin A.S., Gwinn M.L., Haft D.H., Selengut J.D.,
RA   Sullivan S.A., Zafar N., Zhou L., Benahmed F., Forberger H., Halpin R.,
RA   Mulligan S., Robinson J., White O., Rikihisa Y., Tettelin H.;
RT   "Comparative genomics of emerging human ehrlichiosis agents.";
RL   PLoS Genet. 2:208-222(2006).
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; CP000236; ABD45456.1; -; Genomic_DNA.
DR   RefSeq; WP_006010944.1; NC_007799.1.
DR   AlphaFoldDB; Q2GHY2; -.
DR   SMR; Q2GHY2; -.
DR   STRING; 205920.ECH_0123; -.
DR   MEROPS; C26.A07; -.
DR   EnsemblBacteria; ABD45456; ABD45456; ECH_0123.
DR   KEGG; ech:ECH_0123; -.
DR   eggNOG; COG0518; Bacteria.
DR   eggNOG; COG0519; Bacteria.
DR   HOGENOM; CLU_014340_0_5_5; -.
DR   OMA; KRKIIGH; -.
DR   OrthoDB; 504464at2; -.
DR   UniPathway; UPA00189; UER00296.
DR   Proteomes; UP000008320; 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..526
FT                   /note="GMP synthase [glutamine-hydrolyzing]"
FT                   /id="PRO_1000120292"
FT   DOMAIN          3..199
FT                   /note="Glutamine amidotransferase type-1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT   DOMAIN          200..392
FT                   /note="GMPS ATP-PPase"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT   ACT_SITE        83
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT   ACT_SITE        174
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT   ACT_SITE        176
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT   BINDING         227..233
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
SQ   SEQUENCE   526 AA;  58822 MW;  4E9ED59405F340E5 CRC64;
     MSRVAIIDFG SQFTQLLARR IRELNVYSEI FPHDIAFDYI KDSKAFILSG GPKSVLDFTG
     MPPIVHDIIE LNKKTSVPVL GVCYGLQLLS NYFNSTIVHG CGQEFGKAIL NVVKKSEMIK
     DVWKVGDQPY VWMSHADSVY DTPCGFEVIA CSVVNNAIAM ISNEERRIYG VQFHPEVYHT
     PDGVKLLANF VRIAGCDNNW TVESFLDEQE NLIKKQVGDK KVIAALSGGV DSSVAAALTY
     RAIGDQLHCI FIDNGLLRYN EAEKVRQSFV DQFQMPVTIV DRSSVFLDKL QFVTDPEQKR
     KIIGKTFIEV FEEEANKIGN VEFLMQGTIY PDVIESGGSV GKESVTIKSH HNVGGLPDIM
     KLQLVEPLKL LFKDEVRLLG KKLGISDEIL MRHPFPGPGL AIRIIGEITQ EKVNMLQAAD
     EIYINLIKKY NLYDVIWQAF AVLLPVKTVG VMGDSRTYGY TCALRAVTSS DGMTAECFPF
     GVDLETKIIF YEFLQDVSNT IVNNVQGINR VVYDTTSKPP ATIEWE
 
 
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