ID A0A1B1BGM3_9MICO Unreviewed; 479 AA.
AC A0A1B1BGM3;
DT 02-NOV-2016, integrated into UniProtKB/TrEMBL.
DT 02-NOV-2016, sequence version 1.
DT 27-MAR-2024, entry version 25.
DE RecName: Full=GMP reductase {ECO:0000256|HAMAP-Rule:MF_02250};
DE EC=1.7.1.7 {ECO:0000256|HAMAP-Rule:MF_02250};
DE AltName: Full=Guanosine 5'-monophosphate reductase {ECO:0000256|HAMAP-Rule:MF_02250};
DE Short=GMPR {ECO:0000256|HAMAP-Rule:MF_02250};
GN Name=guaB1 {ECO:0000256|HAMAP-Rule:MF_02250};
GN ORFNames=PA27867_0699 {ECO:0000313|EMBL:ANP71666.1};
OS Cryobacterium arcticum.
OC Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Microbacteriaceae;
OC Cryobacterium.
OX NCBI_TaxID=670052 {ECO:0000313|EMBL:ANP71666.1, ECO:0000313|Proteomes:UP000092582};
RN [1] {ECO:0000313|EMBL:ANP71666.1, ECO:0000313|Proteomes:UP000092582}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PAMC 27867 {ECO:0000313|EMBL:ANP71666.1,
RC ECO:0000313|Proteomes:UP000092582};
RA Lee J., Kim O.-S.;
RT "Genome sequencing of Cryobacterium arcticum PAMC 27867.";
RL Submitted (JUN-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Involved in the purine-salvage pathway. Catalyzes the NADPH-
CC dependent conversion of GMP to IMP. {ECO:0000256|HAMAP-Rule:MF_02250}.
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:0000256|HAMAP-
CC Rule:MF_02250};
CC -!- COFACTOR:
CC Name=a monovalent cation; Xref=ChEBI:CHEBI:60242;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02250};
CC -!- PATHWAY: Purine metabolism; IMP biosynthesis via salvage pathway.
CC {ECO:0000256|HAMAP-Rule:MF_02250}.
CC -!- SIMILARITY: Belongs to the IMPDH/GMPR family. GuaB1 subfamily.
CC {ECO:0000256|HAMAP-Rule:MF_02250}.
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DR EMBL; CP016282; ANP71666.1; -; Genomic_DNA.
DR RefSeq; WP_066593262.1; NZ_CP016282.1.
DR AlphaFoldDB; A0A1B1BGM3; -.
DR STRING; 670052.PA27867_0699; -.
DR KEGG; cart:PA27867_0699; -.
DR PATRIC; fig|670052.7.peg.725; -.
DR OrthoDB; 9805398at2; -.
DR Proteomes; UP000092582; Chromosome 1.
DR GO; GO:0003920; F:GMP reductase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0003938; F:IMP dehydrogenase activity; IEA:InterPro.
DR GO; GO:0006164; P:purine nucleotide biosynthetic process; IEA:InterPro.
DR GO; GO:0006166; P:purine ribonucleoside salvage; IEA:UniProtKB-KW.
DR CDD; cd00381; IMPDH; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR HAMAP; MF_02250; GMPR_GuaB1; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR046342; CBS_dom_sf.
DR InterPro; IPR005991; GUAB1.
DR InterPro; IPR005990; IMP_DH.
DR InterPro; IPR001093; IMP_DH_GMPRt.
DR NCBIfam; TIGR01303; IMP_DH_rel_1; 1.
DR PANTHER; PTHR43170; GMP REDUCTASE; 1.
DR PANTHER; PTHR43170:SF5; GMP REDUCTASE; 1.
DR Pfam; PF00478; IMPDH; 1.
DR PIRSF; PIRSF000130; IMPDH; 1.
DR SMART; SM01240; IMPDH; 1.
DR SUPFAM; SSF54631; CBS-domain pair; 1.
DR SUPFAM; SSF51412; Inosine monophosphate dehydrogenase (IMPDH); 1.
PE 3: Inferred from homology;
KW CBS domain {ECO:0000256|ARBA:ARBA00023122};
KW NAD {ECO:0000256|PIRSR:PIRSR000130-3};
KW NADP {ECO:0000256|ARBA:ARBA00022857, ECO:0000256|HAMAP-Rule:MF_02250};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_02250}; Potassium {ECO:0000256|PIRSR:PIRSR000130-4};
KW Purine salvage {ECO:0000256|HAMAP-Rule:MF_02250}.
FT DOMAIN 12..473
FT /note="IMP dehydrogenase/GMP reductase"
FT /evidence="ECO:0000259|Pfam:PF00478"
FT ACT_SITE 303
FT /note="Thioimidate intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02250"
FT BINDING 246..248
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|PIRSR:PIRSR000130-3"
FT BINDING 246..248
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02250"
FT BINDING 296..298
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|PIRSR:PIRSR000130-3"
FT BINDING 296..298
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02250"
FT BINDING 298
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /note="in other chain"
FT /evidence="ECO:0000256|PIRSR:PIRSR000130-4"
FT BINDING 300
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /note="in other chain"
FT /evidence="ECO:0000256|PIRSR:PIRSR000130-4"
FT BINDING 303
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /note="in other chain"
FT /evidence="ECO:0000256|PIRSR:PIRSR000130-4"
SQ SEQUENCE 479 AA; 49937 MW; 77F468F14749A20C CRC64;
MQFYGAVPRH DLTYSDVFLV PSQSAINSRL DVSLAPGDGT AATIPIVSAN MNSVTGPRLA
AALARRGGLG VLPQDMHLQD LDAAIRWVKS QPVQFDTPFV FAPDATVADA LRQVPPVEGQ
GLVIHDAQEN YLGCIDASRL ATALPDARLG DLLHGRLASL DAEDIDTARS AFDVMTAADL
DFAPVLRRGK LVGTLSRKSA LRSTLYQPAV DASGRLLVAA AVGINGDVAA KARALAAAGV
DVLVLDTAHG HQDGMIRALK TVSALKLGIP IVAGNVVTAD AVEHLVGAGA NIIKVGVGPG
AMCTTRMMTA VGRPQFSAVI ETAEAAAGLG AHVWADGGVR YPRDVALALA AGAASVMIGS
WFAGTIEAPG TLDTDASGAL YKESWGMAST KAVRERFDRL DAYELARKTL FAEGISSSKI
YLDPLRPSLE DLLDMITSGV RSSFTYAGAA SVAEFHDRAR VGIQSAAGYE EGKALVVSW
//
