ID   GUAC_BACVZ              Reviewed;         326 AA.
AC   A7Z8C3;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-OCT-2007, sequence version 1.
DT   03-AUG-2022, entry version 88.
DE   RecName: Full=GMP reductase {ECO:0000255|HAMAP-Rule:MF_01511};
DE            EC=1.7.1.7 {ECO:0000255|HAMAP-Rule:MF_01511};
DE   AltName: Full=Guanosine 5'-monophosphate oxidoreductase {ECO:0000255|HAMAP-Rule:MF_01511};
DE            Short=Guanosine monophosphate reductase {ECO:0000255|HAMAP-Rule:MF_01511};
GN   Name=guaC {ECO:0000255|HAMAP-Rule:MF_01511}; OrderedLocusNames=RBAM_029180;
OS   Bacillus velezensis (strain DSM 23117 / BGSC 10A6 / LMG 26770 / FZB42)
OS   (Bacillus amyloliquefaciens subsp. plantarum).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus amyloliquefaciens group.
OX   NCBI_TaxID=326423;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 23117 / BGSC 10A6 / LMG 26770 / FZB42;
RX   PubMed=17704766; DOI=10.1038/nbt1325;
RA   Chen X.H., Koumoutsi A., Scholz R., Eisenreich A., Schneider K.,
RA   Heinemeyer I., Morgenstern B., Voss B., Hess W.R., Reva O., Junge H.,
RA   Voigt B., Jungblut P.R., Vater J., Suessmuth R., Liesegang H.,
RA   Strittmatter A., Gottschalk G., Borriss R.;
RT   "Comparative analysis of the complete genome sequence of the plant growth-
RT   promoting bacterium Bacillus amyloliquefaciens FZB42.";
RL   Nat. Biotechnol. 25:1007-1014(2007).
CC   -!- FUNCTION: Catalyzes the irreversible NADPH-dependent deamination of GMP
CC       to IMP. It functions in the conversion of nucleobase, nucleoside and
CC       nucleotide derivatives of G to A nucleotides, and in maintaining the
CC       intracellular balance of A and G nucleotides. {ECO:0000255|HAMAP-
CC       Rule:MF_01511}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=IMP + NADP(+) + NH4(+) = GMP + 2 H(+) + NADPH;
CC         Xref=Rhea:RHEA:17185, ChEBI:CHEBI:15378, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:57783, ChEBI:CHEBI:58053, ChEBI:CHEBI:58115,
CC         ChEBI:CHEBI:58349; EC=1.7.1.7; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01511};
CC   -!- SIMILARITY: Belongs to the IMPDH/GMPR family. GuaC type 2 subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01511}.
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DR   EMBL; CP000560; ABS75249.1; -; Genomic_DNA.
DR   RefSeq; WP_012118338.1; NC_009725.2.
DR   AlphaFoldDB; A7Z8C3; -.
DR   SMR; A7Z8C3; -.
DR   STRING; 326423.RBAM_029180; -.
DR   EnsemblBacteria; ABS75249; ABS75249; RBAM_029180.
DR   KEGG; bay:RBAM_029180; -.
DR   HOGENOM; CLU_022552_5_0_9; -.
DR   OMA; AYKEYFG; -.
DR   Proteomes; UP000001120; Chromosome.
DR   GO; GO:1902560; C:GMP reductase complex; IEA:InterPro.
DR   GO; GO:0003920; F:GMP reductase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006163; P:purine nucleotide metabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd00381; IMPDH; 1.
DR   Gene3D; 3.20.20.70; -; 1.
DR   HAMAP; MF_01511; GMP_reduct_type2; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR005994; GuaC_type_2.
DR   InterPro; IPR015875; IMP_DH/GMP_Rdtase_CS.
DR   InterPro; IPR001093; IMP_DH_GMPRt.
DR   Pfam; PF00478; IMPDH; 1.
DR   PIRSF; PIRSF036500; GMP_red_Firmic; 1.
DR   TIGRFAMs; TIGR01306; GMP_reduct_2; 1.
DR   PROSITE; PS00487; IMP_DH_GMP_RED; 1.
PE   3: Inferred from homology;
KW   NADP; Oxidoreductase.
FT   CHAIN           1..326
FT                   /note="GMP reductase"
FT                   /id="PRO_1000024490"
FT   ACT_SITE        175
FT                   /note="Thioimidate intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01511"
FT   BINDING         204..227
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01511"
SQ   SEQUENCE   326 AA;  35852 MW;  A2FD907375378B9A CRC64;
     MENVFDYEDI QLIPAKCIVD SRSECDTSVT LGGHTFKLPV VPANMQTIID ENIAAWLAEN
     GYFYIMHRFE PEKRLAFVQD MKARGLISSI SVGVKENDYE FIRELKAQEL VPDYITIDIA
     HGHSNAVISM IQFIKEHVPE SFVIAGNVGT PEAVRELERA GADATKVGIG PGKVCITKIK
     TGFGTGGWQL AALRWCAKAA SKPIIADGGI RTHGDIAKSI RFGASMVMIG SLFAGHEESP
     GQTIEIDGKL YKEYFGSASE FQKGEKKNVE GKKMHVEHKG SLQDTLVEME QDLQSSISYA
     GGNTLEAIRN VDYVIVKNSI FNGDRF