ID A4G886_HERAR Unreviewed; 350 AA.
AC A4G886;
DT 17-APR-2007, integrated into UniProtKB/TrEMBL.
DT 17-APR-2007, sequence version 1.
DT 27-MAR-2024, entry version 103.
DE RecName: Full=GMP reductase {ECO:0000256|HAMAP-Rule:MF_00596};
DE EC=1.7.1.7 {ECO:0000256|HAMAP-Rule:MF_00596};
DE AltName: Full=Guanosine 5'-monophosphate oxidoreductase {ECO:0000256|HAMAP-Rule:MF_00596};
DE Short=Guanosine monophosphate reductase {ECO:0000256|HAMAP-Rule:MF_00596};
GN Name=guaC {ECO:0000256|HAMAP-Rule:MF_00596,
GN ECO:0000313|EMBL:CAL62723.1};
GN OrderedLocusNames=HEAR2601 {ECO:0000313|EMBL:CAL62723.1};
OS Herminiimonas arsenicoxydans.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Oxalobacteraceae; Herminiimonas.
OX NCBI_TaxID=204773 {ECO:0000313|EMBL:CAL62723.1, ECO:0000313|Proteomes:UP000006697};
RN [1] {ECO:0000313|EMBL:CAL62723.1, ECO:0000313|Proteomes:UP000006697}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ULPAs1 {ECO:0000313|Proteomes:UP000006697};
RX PubMed=17432936; DOI=10.1371/journal.pgen.0030053;
RA Muller D., Medigue C., Koechler S., Barbe V., Barakat M., Talla E.,
RA Bonnefoy V., Krin E., Arsene-Ploetze F., Carapito C., Chandler M.,
RA Cournoyer B., Cruveiller S., Dossat C., Duval S., Heymann M., Leize E.,
RA Lieutaud A., Lievremont D., Makita Y., Mangenot S., Nitschke W., Ortet P.,
RA Perdrial N., Schoepp B., Siguier N., Simeonova D.D., Rouy Z., Segurens B.,
RA Turlin E., Vallenet D., Van Dorsselaer A., Weiss S., Weissenbach J.,
RA Lett M.C., Danchin A., Bertin P.N.;
RT "A tale of two oxidation states: bacterial colonization of arsenic-rich
RT environments.";
RL PLoS Genet. 3:518-530(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.
CC {ECO:0000256|ARBA:ARBA00037691, ECO:0000256|HAMAP-Rule:MF_00596,
CC ECO:0000256|RuleBase:RU003929}.
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;
CC Evidence={ECO:0000256|ARBA:ARBA00000930, ECO:0000256|HAMAP-
CC Rule:MF_00596, ECO:0000256|RuleBase:RU003929};
CC -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_00596}.
CC -!- SIMILARITY: Belongs to the IMPDH/GMPR family. GuaC type 1 subfamily.
CC {ECO:0000256|HAMAP-Rule:MF_00596}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00596}.
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DR EMBL; CU207211; CAL62723.1; -; Genomic_DNA.
DR AlphaFoldDB; A4G886; -.
DR STRING; 204773.HEAR2601; -.
DR KEGG; har:HEAR2601; -.
DR eggNOG; COG0516; Bacteria.
DR HOGENOM; CLU_022552_5_3_4; -.
DR OrthoDB; 9805398at2; -.
DR Proteomes; UP000006697; 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:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0006163; P:purine nucleotide metabolic process; IEA:UniProtKB-UniRule.
DR CDD; cd00381; IMPDH; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR HAMAP; MF_00596; GMP_reduct_type1; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR005993; GMPR.
DR InterPro; IPR015875; IMP_DH/GMP_Rdtase_CS.
DR InterPro; IPR001093; IMP_DH_GMPRt.
DR NCBIfam; TIGR01305; GMP_reduct_1; 1.
DR PANTHER; PTHR43170; GMP REDUCTASE; 1.
DR PANTHER; PTHR43170:SF5; GMP REDUCTASE; 1.
DR Pfam; PF00478; IMPDH; 1.
DR PIRSF; PIRSF000235; GMP_reductase; 1.
DR SMART; SM01240; IMPDH; 1.
DR SUPFAM; SSF51412; Inosine monophosphate dehydrogenase (IMPDH); 1.
DR PROSITE; PS00487; IMP_DH_GMP_RED; 1.
PE 3: Inferred from homology;
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00596,
KW ECO:0000256|PIRSR:PIRSR000235-3};
KW NADP {ECO:0000256|ARBA:ARBA00022857, ECO:0000256|HAMAP-Rule:MF_00596};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_00596};
KW Potassium {ECO:0000256|ARBA:ARBA00022958, ECO:0000256|HAMAP-Rule:MF_00596};
KW Reference proteome {ECO:0000313|Proteomes:UP000006697}.
FT DOMAIN 9..341
FT /note="IMP dehydrogenase/GMP reductase"
FT /evidence="ECO:0000259|Pfam:PF00478"
FT ACT_SITE 189
FT /note="Thioimidate intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00596,
FT ECO:0000256|PIRSR:PIRSR000235-1"
FT BINDING 184
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00596,
FT ECO:0000256|PIRSR:PIRSR000235-3"
FT BINDING 186
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00596,
FT ECO:0000256|PIRSR:PIRSR000235-3"
FT BINDING 219..242
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00596"
SQ SEQUENCE 350 AA; 37858 MW; 425B16992BA41BBD CRC64;
MHIEESVKLD FKDVLIRPKR STLTSRLEVD IRREFLFHHS RQTYRGIPII ASNMDSTGTI
EMAHALAPHQ LSAALHKHHS TDDLVAFFQS LQHSAHAAST AFYSMGISPS DYDKFTAVMA
RLDNAIEYVC IDVANGYTEG FINFVKKVRK EFPHLTIMAG NVVTGDITEE LILAGADIVK
VGIGPGSVCT TRKMTGVGYP QLSAVIECAD AAHGLGGQIC ADGGCAVPGD LAKAFGGGAD
FIMLGGMLAG HDECAGEVVE REGKKYKCFY GMSSRAAMEK YAGGVADYRA AEGKEVLVEY
RGPVVNTLQE ILGGVRSACT YVGAHKLKEL TKRTTFIRVT QQLNEVFGKS
//
