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GUAA_PROM3
ID   GUAA_PROM3              Reviewed;         528 AA.
AC   A2C5P2;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 1.
DT   03-AUG-2022, entry version 101.
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=P9303_00451;
OS   Prochlorococcus marinus (strain MIT 9303).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=59922;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9303;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
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; CP000554; ABM76802.1; -; Genomic_DNA.
DR   AlphaFoldDB; A2C5P2; -.
DR   SMR; A2C5P2; -.
DR   STRING; 59922.P9303_00451; -.
DR   MEROPS; C26.957; -.
DR   PRIDE; A2C5P2; -.
DR   EnsemblBacteria; ABM76802; ABM76802; P9303_00451.
DR   KEGG; pmf:P9303_00451; -.
DR   HOGENOM; CLU_014340_0_5_3; -.
DR   OMA; KRKIIGH; -.
DR   BioCyc; PMAR59922:G1G80-48-MON; -.
DR   UniPathway; UPA00189; UER00296.
DR   Proteomes; UP000002274; 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.
FT   CHAIN           1..528
FT                   /note="GMP synthase [glutamine-hydrolyzing]"
FT                   /id="PRO_1000120360"
FT   DOMAIN          13..204
FT                   /note="Glutamine amidotransferase type-1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT   DOMAIN          205..403
FT                   /note="GMPS ATP-PPase"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT   ACT_SITE        90
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT   ACT_SITE        178
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT   ACT_SITE        180
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
FT   BINDING         232..238
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00344"
SQ   SEQUENCE   528 AA;  59069 MW;  6240C8DB6406E70B CRC64;
     MSNSQSEGQR QPAIVILDFG SQYSELIARR VRETEVYSLV MSYSTSADEL RQLAPKGIIL
     SGGPSSVYAE RAPLCDPNIW DLGIPVLGVC YGMQLMVQQL GGRVEMATGK AEYGKAPLEI
     DDPTDLLTNV ENGSTMWMSH GDSVRALPEG FVRLAHTANT PDAAVAYHTR SLYGVQFHPE
     VVHSTDGMSL IRNFVYHICG CEPDWTTTAF IEEAVSQVRS QVGDKRVLLA LSGGVDSSTL
     AFLLKKAIGD QLTCMFIDQG FMRKGEPEFL MDFFDRKFNI NVEYINARQR FISKLNGIVD
     PEEKRKIIGT EFIRVFEEES NRLGPFDYLA QGTLYPDVIE SAGTNIDPKT GERVAVKIKS
     HHNVGGLPKD LQFKLVEPLR RLFKDEVRKV GRSLGLPEEI VRRHPFPGPG LAIRILGEVT
     DEKLNCLRDA DLIVREEIRE AGLYHEIWQA FAVLLPVRSV GVMGDQRTYA WPIVLRCVSS
     EDGMTADWSR LPDELLERIS NRIVNEVRGV NRVVLDITSK PPGTIEWE
 
 
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