GUAC_ACIET
ID GUAC_ACIET Reviewed; 325 AA.
AC B9ME75;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 24-MAR-2009, sequence version 1.
DT 03-AUG-2022, entry version 61.
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=Dtpsy_2679;
OS Acidovorax ebreus (strain TPSY) (Diaphorobacter sp. (strain TPSY)).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC Comamonadaceae; Diaphorobacter.
OX NCBI_TaxID=535289;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TPSY;
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C., Han C.,
RA Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Coates J.D.;
RT "Complete sequence of Diaphorobacter sp. TPSY.";
RL Submitted (JAN-2009) to the EMBL/GenBank/DDBJ databases.
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; CP001392; ACM34114.1; -; Genomic_DNA.
DR RefSeq; WP_015914016.1; NC_011992.1.
DR AlphaFoldDB; B9ME75; -.
DR SMR; B9ME75; -.
DR STRING; 535289.Dtpsy_2679; -.
DR EnsemblBacteria; ACM34114; ACM34114; Dtpsy_2679.
DR KEGG; dia:Dtpsy_2679; -.
DR eggNOG; COG0516; Bacteria.
DR HOGENOM; CLU_022552_5_0_4; -.
DR OMA; AYKEYFG; -.
DR OrthoDB; 532857at2; -.
DR Proteomes; UP000000450; 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_1000185053"
FT ACT_SITE 173
FT /note="Thioimidate intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01511"
FT BINDING 202..225
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01511"
SQ SEQUENCE 325 AA; 35699 MW; 6BB5614F9BF26380 CRC64;
MEIFDYDNIL LLPRKCRVES RSECDTSVEL GGRRFRLPVV PANMKTVVDE KICTWLAQNG
YFYVMHRFDL DNVQFVKDMH AQGCFASISL GVKQPDYDTV DRFVAEGICP EYITIDIAHG
HADSVKNMIT YLKAKIPAAF VIAGNVGTPE AVIDLENWGA DATKVGIGPG KVCITKLKTG
FGTGGWQLSA LKWCARVATK PIIADGGIRS HGDIAKSVRF GATMVMVGSL FAGHEESPGK
TVEVDGELYK EYYGSASDFN KGEYKHVEGK RILEPIKGKL ADTLTEMEQD IQSSISYSGG
KKLMDIRKVN YVILGGDNAG EHLLM