ID E6SC18_INTC7 Unreviewed; 539 AA.
AC E6SC18;
DT 08-MAR-2011, integrated into UniProtKB/TrEMBL.
DT 08-MAR-2011, sequence version 1.
DT 27-MAR-2024, entry version 54.
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 OrderedLocusNames=Intca_3072 {ECO:0000313|EMBL:ADU49558.1};
OS Intrasporangium calvum (strain ATCC 23552 / DSM 43043 / JCM 3097 / NBRC
OS 12989 / 7 KIP).
OC Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Intrasporangiaceae;
OC Intrasporangium.
OX NCBI_TaxID=710696 {ECO:0000313|EMBL:ADU49558.1, ECO:0000313|Proteomes:UP000008914};
RN [1] {ECO:0000313|EMBL:ADU49558.1, ECO:0000313|Proteomes:UP000008914}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 23552 / DSM 43043 / JCM 3097 / NBRC 12989 / 7 KIP
RC {ECO:0000313|Proteomes:UP000008914};
RX PubMed=21304734; DOI=10.4056/sigs.1263355;
RA Del Rio T.G., Chertkov O., Yasawong M., Lucas S., Deshpande S., Cheng J.F.,
RA Detter C., Tapia R., Han C., Goodwin L., Pitluck S., Liolios K.,
RA Ivanova N., Mavromatis K., Pati A., Chen A., Palaniappan K., Land M.,
RA Hauser L., Chang Y.J., Jeffries C.D., Rohde M., Pukall R., Sikorski J.,
RA Goker M., Woyke T., Bristow J., Eisen J.A., Markowitz V., Hugenholtz P.,
RA Kyrpides N.C., Klenk H.P., Lapidus A.;
RT "Complete genome sequence of Intrasporangium calvum type strain (7 KIP).";
RL Stand. Genomic Sci. 3:294-303(2010).
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; CP002343; ADU49558.1; -; Genomic_DNA.
DR AlphaFoldDB; E6SC18; -.
DR STRING; 710696.Intca_3072; -.
DR KEGG; ica:Intca_3072; -.
DR eggNOG; COG0516; Bacteria.
DR eggNOG; COG0517; Bacteria.
DR HOGENOM; CLU_022552_2_1_11; -.
DR Proteomes; UP000008914; Chromosome.
DR GO; GO:0003920; F:GMP reductase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0003938; F:IMP dehydrogenase activity; IEA:UniProtKB-EC.
DR GO; GO:0006164; P:purine nucleotide biosynthetic process; IEA:InterPro.
DR GO; GO:0006166; P:purine ribonucleoside salvage; IEA:UniProtKB-KW.
DR CDD; cd02205; CBS_pair_SF; 1.
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; IPR000644; CBS_dom.
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; PF00571; CBS; 2.
DR Pfam; PF00478; IMPDH; 1.
DR PIRSF; PIRSF000130; IMPDH; 1.
DR SMART; SM00116; CBS; 2.
DR SMART; SM01240; IMPDH; 1.
DR SUPFAM; SSF54631; CBS-domain pair; 1.
DR SUPFAM; SSF51412; Inosine monophosphate dehydrogenase (IMPDH); 1.
DR PROSITE; PS51371; CBS; 2.
PE 3: Inferred from homology;
KW CBS domain {ECO:0000256|ARBA:ARBA00023122, ECO:0000256|PROSITE-
KW ProRule:PRU00703}; 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|ARBA:ARBA00022726, ECO:0000256|HAMAP-
KW Rule:MF_02250}; Reference proteome {ECO:0000313|Proteomes:UP000008914}.
FT DOMAIN 155..213
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
FT DOMAIN 214..270
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
FT REGION 25..53
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 363
FT /note="Thioimidate intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02250"
FT BINDING 306..308
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|PIRSR:PIRSR000130-3"
FT BINDING 306..308
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02250"
FT BINDING 356..358
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|PIRSR:PIRSR000130-3"
FT BINDING 356..358
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02250"
FT BINDING 358
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 360
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 363
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 539 AA; 56885 MW; 4434E4B4EDDE6B2E CRC64;
MLRSSMVSPG PLNLLEIASA RSGLATSRRK KPARCHSALG RGTRAGGHGT AGPSPAAYAH
GVKFLDGLRP QLDLTYDDVF MVPSRSAVTS RLDVDLATVD GTGTTIPIVV ANMTAIAGRR
MAETVARRGG IAVIPQDIPA DVVRDVIEWV KGRHLVHDTA ITLDPHMTSG EALVLLHKRA
HGAAVVIEGN RPVGIVTEKD LTGVDRFTQV QDVMFREMVV LPEDVDARAA FERLTAERRR
VAPVVAADGT LVGILTKEGA VRSGLYSPAL DDAGRLRVAA AIGINGDVAA KAAQILEAGA
DVLVIDTAHG HQDKMIDALR AVRALDPSVP VVAGNVVSAE GTRELIEAGA DIVKVGVGPG
AMCTTRMRTA VGRPQFSAVL ECAIAARELG KHVWADGGVR HPRDVALALA AGASNVMIGS
WFAGTLESPG DLYTDNDGRS YKESFGMASS RAVLNRTAAD SAYDRARKAL FEEGISSARM
YVDPARPSVE DVLDEIIAGL RSSCTYAGAR TLEEFHERAV VGLQSTAGYA EGRPLHTSW
//
