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GUAC_STACT
ID   GUAC_STACT              Reviewed;         325 AA.
AC   B9DP67;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 71.
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=Sca_0978;
OS   Staphylococcus carnosus (strain TM300).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=396513;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=TM300;
RX   PubMed=19060169; DOI=10.1128/aem.01982-08;
RA   Rosenstein R., Nerz C., Biswas L., Resch A., Raddatz G., Schuster S.C.,
RA   Goetz F.;
RT   "Genome analysis of the meat starter culture bacterium Staphylococcus
RT   carnosus TM300.";
RL   Appl. Environ. Microbiol. 75:811-822(2009).
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; AM295250; CAL27886.1; -; Genomic_DNA.
DR   RefSeq; WP_015900227.1; NC_012121.1.
DR   AlphaFoldDB; B9DP67; -.
DR   SMR; B9DP67; -.
DR   STRING; 396513.SCA_0978; -.
DR   GeneID; 60545330; -.
DR   KEGG; sca:SCA_0978; -.
DR   eggNOG; COG0516; Bacteria.
DR   HOGENOM; CLU_022552_5_0_9; -.
DR   OMA; AYKEYFG; -.
DR   OrthoDB; 532857at2; -.
DR   BioCyc; SCAR396513:SCA_RS04915-MON; -.
DR   Proteomes; UP000000444; 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..325
FT                   /note="GMP reductase"
FT                   /id="PRO_1000185054"
FT   ACT_SITE        174
FT                   /note="Thioimidate intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01511"
FT   BINDING         203..226
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01511"
SQ   SEQUENCE   325 AA;  36208 MW;  0D16A3E20870378B CRC64;
     MKIFDYEDVQ LIPNKCIVKS RSECDTSVQF GPKRFKLPVV PANMQTVMNE KLAEWFAEND
     YFYIMHRFDE EGRIPFIKKM QDKGLFASIS VGVKDKEYDF VRELAEEGLK PEYITIDIAH
     GHSEQVINMI RQIKSYLPET FVIAGNVGTP EGVRELENAG ADATKVGIGP GRVCITKIKT
     GFGTGGWQLA AINHCSKAAR KPMIADGGIR THGDIAKSIR FGASMVMVGS LFAAHEESPG
     ETVELDGKLY KEYFGSASEF QKGEHKNVEG KKMFVEHKGT LADTLTEMQQ DLQSSISYAG
     GKDLDSLRKV DYVIVRNSIF NGDRD
 
 
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